Knocking noise in outdrive. Mercruiser Alpha one loud knocking took the outdrive off.

• Knocking noise in outdrive While in forward knocking sound is heard from outdrive. I also put some oil additive and took to the lake and puttered around. Discussion in 'Outboards' started by LEASEGUY, Nov 28, 2007. I turned the engine off right away. "I have a 1971 pre-alpha outdr "I have a 1971 pre-alpha outdrive. See video for reference (I didn’t Forums. Joined 9 Nov 2009 Messages 888 Location North East Hampshire Visit site. The little experience I've had with a rod knocking from a spun crankshaft bearing was a V8 car engine. So I am thinking it is not related to prop or lower end. Also, refurbish the trailer. It started making a knock noise recently when the outdrive is turned either left or right. When the engine is cold and idling in park, giving it just a touch of gas, I hear a new knocking noise. found water in outdrive. Volvo Penta outdrive noise. Thread starter freewilly; Start date Jan 29, 2010; Toggle sidebar. It is making a knocking noise in the very back of the boat. Wind died down later that night, so I The boat is a 2000 Sea Ray Sundeck 210 with a 5. 3 Clunking/Knocking Noise (video) Thread starter brsox88; Start date May 25, 2017; B. 0/alpha one setup that’s been making a knocking noise. When the engine warms up, it pretty much goes away. I PUT IN NUETRAL AND REVED THE MOTOR. 3 with Cobra outdrive. Rpm's dropped Our SLX 280 today suddenly started making an odd noise. Does this sound like this could be the problem. If you raise the trim too much, the noise starts again. Upper half of outdrive leg was replaced last spring with a new SEI section due to seal leaks in original outdrive. I just changed the fluid with fresh VP stuff. 230 Mike lost speed on water even on hi lost speed on water even on high rpm. Recently rebuilt 1992 Mercruiser 5. Now I get a knocking noise. After getting my 05 crownline 216 with alpha one out for the season I noticed a knocking from stern area. D. I posted awhile back on how to remove my drive and about a bent prop shaft. The person that did the repair may not have refilled the oil. that is not my idle speed. Gimbal bearing and u-joints has been replaced but it has The knocking sound is not present or is very quiet when the boat is not in gear. 350 5. Metal pieces are bad. com/Get Your Born Again Boating Clothing! https:/ General Q & A - Bravo1 Noise - Hi The last time I went out with my boat, we were beach for a part of the day and when came time to leave I started the boat with the trim way up (forgotten to trim it down before starting the boat) and I heard a knocking sound coming from the outdrive, something like TOCK,TOCK,TOCK. Ran fine for full season. 7 converted to a carburetor and a first generation alpha outdrive. Bigger vibration at 1800 RPM's. Pull the impeller so it doesn't melt and only run The engine is sound and compression is good and almost even on all cylinders. Joined Aug 15, 2010 Messages 13. Iam a gm tech so I know what a rod knock sounds like,this not the same noise,It almost sounds like your anghor is at the bottom of the bilge bounching around,engine runs great with good oil pressure,plenty off power so the knock sensor is not picking up any sound and not retarding I have a 2022 Ridgeline with 56,000 miles on it. Knocking on Window. Some additives also have detergents to clean sludge and carbon deposits, which can contribute to knocking. U joints feel tight. No noise at initial install, but knocking after short Mid 2000's 21ft Trophy with a mercruiser I/O Last time out we noticed a knock in the outdrive but only happens in neutral. Now back in I still have the noise. It occurs under load, while pulling a skier for example. 0 SX drive. About 700 hours. I am looking a at purchasing a 2000 sea ray 260 w merc 454 and bravo 3 with 150 hours. Got the trim fixed, water in the locker fixed, and control box fixed. hello guys little update 1987 searay 5. If you rule out U-joints, gimbal bearing and alignment, then next place to look IMO, would be the bearings on the gear end yoke on the driveshaft housing. I have a knocking noise coming from my outdrive, it only occures in foward and slightly louder in tuns, and no noise in reverse. Low Engine Oil. With all of that work you have done on the engine have you pulled the outdrive to inspect the U joints and yoke? Mar 21, 2024 #17 ttmott PhD in OCD. 0L w/Alpha I outdrive. 3 mercruser. PugetHound New Member. This past winter, I had my mechanic replace my u-joints, gimbal bearing, and bellows. At end of full season, slight vibration at 1200 RPM's. Looks like it was just installed. Thanks in advance for When the trim is all the way down, it makes the noise, But, when you raise the trim slightly, the noise stops. Answered by Lawson, T. 11 outdrive. The day before the noise started, I used it a good portion of the day with no problems. This is with the trim all of the way down. Engine knock, also known as detonation, Hey guys I'm back again. Motor comes out, the out drive hole is redone, reglassed, smoothed out, and everything is put back in. russ Active member. Noise from outdrive. Top . The lower unit makes a knocking noise when turned hard over in either direction and the Re: alpha 1 outdrive noise PLEASE HELP thanks for the quick reply. Once the boat is started you can hear it coming from Drop her in the water today first time since the repair work, first thing I notice is now when the steering wheel is turned 1/2 in either direction and further, it makes a "knocking" noise that radiates through the hull. He has ran the boat up until I bought it and I used it all last summer. jermat New member. If the gimbal bearing is not bad you might want to check the magnets on the drain plugs the ujoints will make a knocking noise in A damaged or worn gear set, prop shaft, or bearing inside the outdrive. 7L and gen 2 out drive . If the knocking is severe or persistent, it signals more Mercruiser Sterndrive Forum . 3l Mercruiser from a 2002 Starcraft that is making a noise I am not sure is normal or not. 3 cobra 1988 loud deep knocking? Thread starter Chrisnomates; Start date Apr 26, 2010; Prev. Download. (Mercury or Mer Cruzer). I have seen a few similar posts but none the exact same so I figured Id ask. Aug 2, 2022 19 Boat Info 2022 SLX Hey cdk took off outdrive bellows gimbal and exhaust all in great shape but i found a melted flapper valve stuck up against the shifter shaft in front of the exhaust bellows would that have caused the tapping noise and bogging down. It has a 95 vortec 5. The SEI boat transom repair kit includes a new gimble bearing. Tell me a bit more about what's going on so the Marine Mechanic can help you best. I have a '96 Mercruiser 4. The reverse gear assembly or the dog clutch is probably worn out, usually the latter. It's a 1993 stingray 609 with 4. started engine and knocking still there. both directions - OMC Sterndrive and Inboard Forum . Cost of analysis: $5 filter All the noises and smells you describe could be a gimbal bearing or outdrive upper gearset. It is loud enough for me to hear while driving. My noise is only noticeable at idle and appears to be coming from directly behind the engine. My father owns a 1999 Bayliner Capri (19ft). I realized it went away when trimmed down and went ahead for a water test. Was told that the motor only had about 60-80 hours on it. The drive came off easily and the bellows doesn't appear to have any holes in it. Joined Apr 17, 2002 Messages 70,987. It goes away when I have an 87 3. Re: Knocking sound only in neutral idle V8 engines don't normally drop 200 rpm when put into gear, 50-75 rpm is more typical. Recently while flushing engine it started making a knocking sound from outdrive. Mechanic's Assistant: Is there anything else the Marine Mechanic should be aware of? 2015 4. When turning hard left u joints make a loud chatter noise. Re: 98 VOLVO SX: u joint noise and whining in outdrive All I can say without being there, is that the u-joints should not be knocking. Banging noises can signify anything from suspension damages to engine mechanical issues. So what gives? I had a previous thread on here re: this. Joined Jan 1, 2000 RO Number 2553 Messages 516. So obviously worst case is a new or reman engine. Thread starter jermat; Start date Apr 16, 2016; J. Constant knock been chasing a knocking noise been chasing a knocking noise from the drive and i'm now sure that it is coming from the top of the drive it happens mainly in reverse gear and doesn't happen in neutral boat running on a hose. I have an evinrude 140hp 4cyl (1990) as I way underway engine sounded louder & louder ,sounded just like engine knock, when I slowed Today we decided to take our boat a few miles down the lake to a local island. No water in bellows. If the knocking noise you here is more of a rattle than a hard knock, it may be from the back lash it the upper gears of the outdrive. 2003 496 mag with bravo drive,got a knocking noise around 4000rpm. When your oil level is low, the engine’s moving parts don’t get enough lubrication, resulting in increased friction and heat. Engine Knock: This is perhaps the most concerning cause, as it can indicate serious engine problems. I’ve also developed a leak from the rear main seal. The splines on the coupler are ok I checked it with my alignment tool. I decided to drain the gear oil for the outdrive to checkfor water and/or oil. It has an Alpha One Gen 2 outdrive. When the wheel is straight, no noise is evident. When turning hard right u joint make a faint noise that can almost not be heard. Ran great all day with temp in the mid range pulling a 3 person tube. 2 months ago I got to put it back on the water and havent had any problem except the steering and a knocking sound. It doesn't change if you raise or lower the outdrive at all. Knock-knock-knock. hello there I bought a se116 complete unit back on november installed on february and the outdrive was very noise, but after 10-15 hours the noise almost disappear, I changed the fluid 0n the first 10 hours, my quesion is I still have some noise when I go WOT?, another thing is the paint in the upper in I had the boat out the other day and noticed a knocking sound that appears to be coming from my outdrive when in reverse. Some of the most common ones are – low octane fuels, failing knock sensors, worn bearings, excess carbon deposits, faulty spark plugs, and/or issues with the timing chain. So I brought it back home assumed it was the u-joints. Ended up being one very tight u-joint cap -quiet now and runs gre A year ago my boat slid off the trailer 4 ft from the water so I sent it to the marina and long story short the transom had a crack in it so at the tune of $5500 it was replaced and the outdrive and motor were taken off checked and put back on. The Volvo Mechanic can help with the loud knocking noise from your outdrive. 7 (Chevy small block 350, V8, 300 HP); Bravo 1 outdrive. Little history - I had the lower unit impeller go bad and it over heated the engine. The first step is to understand what exactly causes this knocking sound. Always trim outdrive down ~ 1/3 to 1/2 way down before starting. Drain the lube out of the outdrive and see if you see metal in the oil. If it is in the OD then the only way to determine the problem is to open it up. Boating Forums. It involves following several diagnostics methods to track and fix the annoying knocking sound. 22 year old motor my friend. Joined Jul 22, 2019 Messages 71. I have owned the boat for 2 years and this noise just popped up one day all of a sudden. If I select foward then ease back to neutral the noise stops. I know cars but not boats. The mechanic said it was very uncommon for the j's to be worn out with a boat that year. also got a knock in flywheel area. You Quickest way is to drain the oil. Lawson, T. i am skeptical to bring it out with this noise. brsox88 Petty Officer 2nd Class. Walked over to service department and ask lead technician to please walk down and listen to the noise. It has the 3. The knocking noise is not like a lifter noise but a banging noise that is intermittent once it starts where it bangs once then maybe 6 or 8 seconds later then maybe 10 or twelve and so on. Thread starter kauaiman; Start date Dec 12, 2012; K. I get a knocking and whining sound when in forward and reverse that increases and decreases with rpm. I am thinking u-joint. i'm not sure if i would hear it in the water Knocking sound "if it is the gimbal beari "if it is the gimbal bearing will operating the boat do any harm to the engine or outdrive. couldnt keep engine running loud knocking noise underway in gear. Knocking-Door Knocking. I noticed originally that in reverse and turning the steering there is a clicking noise from the outdrive. No noise apart from a rattling waterpump. Incidentally last season when I inadvertantly switched the out drives the noise then less General Q & A - outdrive knocking at idle in gear? - Just put boat in water tonight and the outdrive is knocking in gear. The tooth had lodged in a place that one of the gears rubbed it making a lot of noise. Bravo 2 outdrive. What other engine issues besides something like a Noise gets much worse when you turn outdrive to left or right. 7 Volvo penta that is making some racket when the out drive is turned. Expert. I finally took the outdrive off to inspect the gimbal bearing and u joints since I have a bearing noise coming from the outdrive. The exhaust is routed elsewhere, so its not that popping. the prop moves the boat but as soon as you rev the engine its making a bad knocking noise what can it be? Mechanic's Assistant: Sometimes boat issues seem like they'll be really complicated, but end up being easy to fix. Phillbo Well-known member. Naturally, I replaced the U-joints. No knocking from front of engine. You may have to register before you can post: click the register link above to proceed. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright How To Fix Knocking Noise From Front Wheel When Driving. I had a very well respected surveyor look at it and he didn't believe it was a issue the way it ran. I re-pulled the outdrive after some suggestions it was the yoke u-joints were worn but the noise is still there after replacing the Re: Alpha One upper outdrive noise as your draining the gear lub. 3 mercruiser/alpha gen 2 drive. Jumped in the water - prop would spin, then jam. Took my boat out one day 2007 Mercruiser 3. You might want to consider checking the equivalent on your set up. Had it rebuilt a couple of years ago. Does this sound like the forward gearset and pinion missing a The previous owner told me they removed the outdrive in order to pull the engine. PBwhaler Newbie. Royalty-free sound effects. Re: Noise in volvo penta outdrive? the engine runs fine, i just had the outdrive serviced. ok, i posted a thread a while back about getting my alpha one gen II sterndrive back on after replacing the gimbal bearing. Its a loud vibration type sound and it does it even in neutral. korn9613 Cadet. Well, had the boat out for the first full day. Joined Nov 22, 2004 RO Number 15782 Messages As far as "knocking" sounds goknocking is NOT related to needing a valve cover gasket change. Joined Jul 27, 2005 Messages 5,322. I knew that I could run it long enough to hear a rod knock without water but I wanted to be flexible in case I didn't hear a knock. Once I heard the noise, I shut her down immediately. On the water I noticed a knock when turning the boat. 400hours in it. New. I bought the "heavy duty" Knocking sound in My Bravo II Outdrive. General Boating Discussion - outdrive clicking noise (intermittent) - Sometimes when I slow down from high speed or speed up from idle, I hear a weird bumping clicking noise that sounds like outdrive but not sure. No shaved metal in site just this loud knock that sounds like metal squeaking in metal. Jul 31, 2019 #1 i just completed fixing the shift assist system on our 1989 Sanger with a 5. or metal dust too. The knocking only is there when in forward A knocking noise when driving happens when there is an issue with the vehicle. 0L merc alpha 1 gen 2,, i started it up in the drive way and it sounds like a knocking noise coming from the outdrive, its not very loud but i can hear it if im standing close to it,, it does it in neutral and in gear,, could it The knocking sound is not present or is very quiet when the boat is not in gear. Today I pulled the drive and ran it without and it didn't make the noise. The engine performance seems unaffected though. 0 Mercruiser. Sounds like rod knock. Trying to decide weather to buy a new one, fix it or leave it alone and hope for the best OMC Cobra Mechanic's Assistant: I understand your concern about the clunk noise in your OMC Cobra outdrive, and I have a 1987 27' Bayliner with a Cobra outdrive. No noise in neutral. Took the boat out to the river this weekend and heard a knocking sound coming from somewhere in the engine compartment when ever I brought the boat over no wake speed. So a few weeks ago I had a knocking sound in my transom. This is a Bravo 3 (twin prop's) Outdrive, The Motor is a 350 HO Mag. You can also try removing the outdrive and run Ir for a few minutes to see if it goes away. Hi all! I'm new to this site, but well versed in engines. New posts Search forums. Keep reading to learn what engine knock really is, the common causes of engine knocking, and most importantly, practical solutions to diagnose and fix the issue before serious engine damage occurs. It sounds like a bearing going out maybe in a gear somewhere. When I return from a trip and reverse into my pontoon I get a knocking noise from my starbourd outdrive. Have owned the boat about 2 months. Also you may have multiple issues and you may think the noise has something to do with the engine running. The boat starts and runs great. replace new oil. , I did align the engine using and alignment tool. . The boat and drive are new to me so not sure if it OMC Cobra outdrive noise. Heard no noise in the driveway with the drive earmuff on. I noticed this noise when I puts the cuffs on the outdrive and ran it it my driveway, but it didn't seem as bad as it did when I put it in the water. The guy I bought it from said he had a dealer check it in 95 and said some boats do this. TLDR Up front - Boating the other day, knocking noise that got rapidly louder, killed the power, tried to give it power, EXTREME knocking noise from the out drive. sorry for the confusion. Oct 27, 2013 #7 Re: outdrive making clicking Hello, helping my nephew fix his boat. It is making a loud racket when I turn the out drive left/right. awful noise only when reving it up. We have taken it out about 4 times this summer, but back in July, while running at maybe 35mph, we heard a lough sound and then followed by a knocking sound. Hi all, 1996 Merc 454 on Bravo II 2855 If it turns out to the be within the out drive. Could it be the outdrive? The knock sounds like it's in the engine, though. It sounds like a bad bearing almost mixed with some knocking noise that seems a tad louder when the drive is tilted up and in gear than when the drive is flat or in running position. When I went to test, I noticed a knocking when trimmed up. when i tried to increase rpm, it just backfired something fierce and lost power. After getting the parts I put in a new gimbal bearing (used the tool to align) new This is on a 1999 starcraft with alpha 1 gen 2 sterndrive. and the o-rings are fine of course i'm putting new ones in when i reassembal. Exhaust is loud though. I have heard speculation of U-Joints or even just the Volvo penta out drive noise. in 11 hours 4 months ago. The boat price has an engine replacement factored in. The noise goes away after boat is on plane but returns when I increase the throttle. Last summer I bought a boat with VolvoPenta D3-160 A-A engine and with a DP-SMTD3 2. I had the u-joints replaced because last season I had a vibration when turning. I supplied the parts. OMC 4. 3. There just seems to be too much noise coming from the drive area. I START HEARING A KNOCKING COMING FROM THE OUTDRIVE OR LOWER UNIT. 1; 2; 3; Next. May 25, 2017 #1 I have this 4. 7 engine, engine was running on muffs on idle, good temp, good oil pressure, suddenly start making a noise knocking, I shut down the engine, restart and same knocking, I remove the outdrive and start the engine same knocking, did a compression test prior to the noise all the cylinders 150, well time to pull engine out and 361 royalty-free knocking sound effects Download knocking royalty-free sound effects to use in your next project. Apr 16, 2016 #1 I have a mercruiser 165 6 cly outdrive that has a noise in it when I turn right or left I have put new u-joints , gimbal brg, going straight its fine I have also tried it putting 120 4 cly drive that I have on same noise here . Some knocking noises can indicate dangerous problems with the car, and other knocking sounds indicate minor issues. Once it came in I took the outdrive off and replaced the shaft. News Feed; Member List; Calendar; Forum; Baja Boat Owners Tech Area; Drives; If this is your first visit, be sure to check out the FAQ by clicking the link above. 0 GS SX Outdrive Noise You should have the replaceable u joints in that vintage Customer: Why is my outdrive making noise On the very lower end when in gear Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. It also indicates a rough running engine. Now there is a loud knocking from bottom of motor. It sounds somewhat like a rod knock, but I know that it is not in the engine, because there is no change in sound when you rev the engine. If you do the valve cover, get OEM gasket. Specialities include: Boat, Marine Electronics. It basically sounds like the upper gears meshing. You may also feel a vibration as well. At this point the noise starts. Why is my outdrive making noise On the very lower end when in Volvo Penta outdrive noise. TECHNICAL Contributor. After the first incident of knocking, I replaced them. When I turn the outdrive all the way left or right, I get a knocking sound coming form the outdrive. The knocking sound only develops when the vehicle has been driven about 30 or more miles and the motor and It's a 1987 Searaider with a 4. 0L Mercruiser with an Alpha 1 stern drive. The past couple of times out, I noticed a rattling/knocking noise coming from the engine (definitely the engine, not from the outdrive). While running the boat near WOT (4000 rpm's) the motor started to bog down. bornagainboating. The Marine Mechanic I'm going to connect you with knows all the Re: knocking noise Not susposed to run engine/outdrive with the outdrive all the way up. Any different I have a knocking noise and can't determine where it's coming from. Thread starter PBwhaler; Start date Sep 3, 2017; Toggle sidebar. Did valve lash adjustment. I have checked the bellow and Don’t ignore it! A knocking noise could indicate a serious problem that, if left unchecked, may lead to costly repairs or even engine failure. if there's metal fragments in the gear lub they'll sink to the bottom if they can. assming it's been sitting for a bit. The parts included in SEI's transom repair kit are fully interchangeable with MerCruiser's® Alpha One® and Gen II stern drive-outdrive systems. P. 4 Loud clacking, knocking sound (video link)-gctid505872 09-12-2013, 10:12 AM. Boating Discussion. Joined Feb 14, 2012 RO Number 32882 Messages 23. Changed the u joints and reassembled. This is with the outdrive trim in the full down position. 3 OMC V6 with a cobra outdrive. I am not feeling any of the rattling just hearing it. The noise goes away after boat is on plane but Hey Guys! I'm new to all of this, so I hope you will bear with me. Sep 29, 2013 5 2 san diego, ca, USA Name craig Boat Name seatrial Sep 3, 2017 #1 2002 VP duoprop. It happens. Here are some of the most frequent culprits: 1. I told him that I have never heard that noise, and I flush the engine after every use. Could this be why. It almost sounds like the u joint housing is beating against itself. The engine is brand new and when I was installing the outdrive it was extremely difficult to install. Puts a lot of strain on the ujoints and gimbal bearing. What options do I have ìs it terminal or accepted wear and tear all help appreciated. 7 Volvo penta in my reinell 240c. The only way I could be sure it was the OD was to pull it off the boat and start the motor. Volvo Penta 3. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright HI, I have a mercruiser 4. It sounded like it was coming from the upper unit. Also, even at idle, the top of While Running it at idle with muffs - I noticed a knocking ( metallic) while in forward and reverse, sounds like it's coming from The lower unit- almost like the clutch dogs are not engaging fully, or ratcheting - Runs fine & smooth at idle- and the noise goes away with a slight increase in rpm- but at low idle it's clear- The first time back on the lake the engine started making a loud knocking noise at high RPM and before outdrive is trimmed up. Need some help. mercruiser outdrive noise. It is more of a CLANK than a knock. Looking at a boat (to maybe buy) with an 8. we assumed that we blew a cylinder, which is what the marina said as well. I pulled the out drive. when i started the motor the bearing noise was gone but there is a knocking noise coming from the outdrive when the trim is up. dubs283 Vice Admiral. started the engine and it went between 8-9psi. outdrive noise!!! 07-19-2010, 10:16 AM. I JUST TOOK IT OUT AND WITHIN 20 MINUTES RUNNING. U-joints #18-2174,and gimbal #18-2100. After researching I was thinking it was u joints. i hear this noise when i rev the engine up a little bit (round 2000-3000rpms). at about 3k rpm is the ungodly popping sound. Yesterday when I was hooked up to the waterhose, I noticed a knocking sound coming from my outdrive. 7 engine with ~700 hrs. I have a Volvo penta DPS-A drive that makes a rattling noise at idle it sounds like it is coming from the upper gear case but pretty much goes away around 2,000 rpm running on the hose, the noise stays the same turning the wheel in either direction to the stops. We removed the outdrive to take it out of the equation and tightened loose (very loose) motor mounts. specially the initial lub that comes out. The knock did sound like the big ends! Reply. But thanks for watching the videos! Really appreciate Upon launch, I noticed that whenever I turn the steering wheel 1/2 or more to either side, I get a rapid "knock-knock-knock" that sounds like its coming from the outdrive. 3 merc. I have noticed the past few times I have had it out it is making a squeak/bearing nose from the outdrive area. Put new muffler and tail pipe on and no thumping/knock sound. Engine went into limp mode. It has a 4. I was a little shocked when he told me all Bravo III outdrives make that noise. If the noise goes away them it’s either the alternator, circulating pump or any other pulley bearing. 147 satisfied customers. When you put the boat in neutral, and do the same thing, no grinding noise, even at comparable General Q & A - abnormal noise coming from bravo one - Hi all. During the summer I found out there is a clanking noise when the engine is running on neutral gear and the noise was a bit louder when the boat had just been driven (warm oils I guess). Thanks to 270win and moparlvr4406 P. 0:08. It sounds like a loud vibration or loose bearing rattle when it is turned left/right. Thanks Merc 454 , 7. The engine doesn't have to be in gear for noise. Put it in gear and ran all day with no issues but this noise is new. I re-pulled the outdrive after some suggestions it was the yoke u-joints were worn but the noise is still there after replacing the I had a mechanics stethoscope when the outdrive was in and running on the hose and the loudest knock was when I rotated left to right no noise or knocking when the engine was running in gear staying straight the loudest was coming from the bell housing and gimbal area. Aug 29, 2022 #3 just purchased a 1980 Tahiti day cruiser inboard/outboard. Then I noticed it a couple of times in forward gear when the steering was turned sharply. First Prev 15sec later knocking again!!! Any ideas? Knocking sound 2. The boat will not produce the noise out of the water, there needs to be a load on the engine. The drive has a tremendous amount of what sounds like gear noise. Knocking sound when turning hard left or hard right at 1800 RPM's. Behind the motor. J. Bondo Moderator. If noise goes away it’s either the gimbal bearing, cross bearings or something in the drive. Theres a knocking noise. Try removing the belt to see if it goes away or not. A knocking or clicking noise coming from behind the boat is often the sign of a bad gimble bearing. Secondly, the noise comes up especially when I trim up the outdrive just a little or when I accelarate when in fwd gear. Just bought boat and was not very well taken care of. Sounded like knocking at first, but continually grew louder after. I had the same experience - an occasional knock in my Alpha One starboard outdrive that became a constant knock within an hour. If they are worn, cracked, chipped, or misaligned, they can create a knocking noise that changes with engine speed and load. When the engine is running in neutral or in gear I can hear a knocking noise inside the out drive. This causes metal components to One common indication of a failing universal joint, is a knocking sound coming from the Mercruiser stern drive area when the outdrive is turned far left or right (port or starboard). You will know immediately if the noise is in the motor or the OD. 1/4 turn back I have a 1988 Centurian cruiser with a 7. please help OK Cheif, i put the vacuum directly on the pump output. inspect for metal fragments too. Engine is 2005 model and has approx. Next time on the water the noise was worse and ended with the u joint failing catastrophicly. When in idle, revving in idle, or at no wake speed the knocking sound was not present. If the engine were overheating or running at high temp and the noise i would The first time back on the lake the engine started making a loud knocking noise at high RPM and before outdrive is trimmed up. Thread starter russ; Start date 10 Sep 2011; 10 Sep 2011 #1 R. 7 w cobra sterndrive. 454 mystery knock what do the experts think. Any one with experience here? It doesn't seem to get any louder when I throttle up and get on plane I can't here it. Joined: Jul 2006 Posts: 60 Likes: 1, Points: 0, Legacy Rep: 15 Location: NY LEASEGUY Junior Member. 2. Could the O/D C/V shaft be causing this noise and if so what would be the next move. The noise has been present since I have owed About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Bravo 3 Outdrive Noisy. Outdrive alignment is perfect. I lowered the outdrive all the way down, straightened the steering wheel and Learn More About Your Boats Systems By Joining The Born Again Boating Academy! https://www. There is a knocking noise behind the gear case cover. It doesn't sound metallic, piston slap should sound metallic, correct? I have read a little online Mercruiser 4. Too many aftermarket ones do not sit in the cover groove tightly enough, and when the cover is being positioned, they fall out. You wouldn't be the first person to strip down a "I HAVE A 1982 MERCRUISER 470 "I HAVE A 1982 MERCRUISER 470 224CID I4 - I RECENTLY HAD A NEW WATERPUMP PROFESSIONALY INSTALLED. When you turn the wheel either right or left, it makes the noise (pretty loud, too). I can also hear it at idle as a consistent knock, though it's more subtle. It gets worse when I turn the wheel hard to either side. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Knocking or squeaking got louder and then engine just quite. The first time back on the lake the engine started making a loud knocking noise at high RPM and before outdrive is trimmed up. Royalty-free knocking sound effects. The boat is making a knocking/clicking sound at idle and it gets much louder as the engine RPMs rise. Just replaced grease in lower unit and it was black, also replaced gimble bearing and bellows. kauaiman New member. Joined May 15, 2010 Messages 166. major_tom Regular Contributor The port engine (which is right hand rotation with a gear driven cam shaft) has a moderate knocking noise similar to a “diesel knock”. "I have a 1987 27' Bayliner with a Cobra outdrive. Download a sound effect to use in your next project. Seems to have plenty of thrust on prop. 7 GSI engine when accelerating to get the boat on plane. Thread starter korn9613; Start date Jul 19, 2014; K. They said M#E115DGXAFB S#05411604 I bought the boat/motor last July. I can feel the knock if I touch the top of the outdrive. by "gearbox" do you mean outdrive? The engine replacement threw me. Will it last the day tommorrow I have developed a knocking noise in my alpha 1 style SEI outdrive. S. To start viewing messages, select the forum that you want to visit from the selection below. Last time I heard a click or knock coming from an outdrive, it blew a bearing out the side a short time later. i checked the fluid level myself before i took my boat out, it was overfull so i called the repair and told them that it was overfull and i was told that it would be ok. As long as I was in that deep, I went ahead and replaced the gimbal bearing. Proper installation of the gimble 10 Reasons Why You’re Hearing an Engine Knocking Sound (+ Fixes) Here are the most common causes behind an engine knocking sound and their possible solutions: 1. It goes away above 2000 rpm. Re: Bravo 3 Outdrive noise when turning left right [Video] U-joints can look and feel fine but still make noise, though your noise sounds really bad. A knocking sound coming from 5. Its also about 2" from being fully down on its lock bar (trailer is in the way). The more I talk to people and listen to other videos this dieseling About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Also, it is a definite knocking sound, with mercruiser I/O, you would be describing a failed sterndrive U-joint bearing failure. I pulled the engine and replaced it with a rebuilt long block. I am pretty sure it is somthing from the outdrive. Customer: My engine out drive is making a knocking sound when its in gear or idle or in reverse. I ended up buying a alignment tool and managed to get it on. Check that the oil level is full first. Knocking on Door. You could hear the knock as well as feel it 'bump' as the crankshaft went around. Sounds a like a lot of work. And, how would you like to connect with the Mechanic - phone call or online chat? Customer: online is fine. Checked gimbal and it’s smooth. 0L with Alpha 1 Gen 2 and I started to hear a chatter/rattle sound coming from the outdrive area when trimming up slightly (like a tap or two) at high RPM (3500-4000) or making moderately tight turns at the same speed. Either way - a noise such as that - is not going to go away. Look for signs of water or metal flakes in the oil. I would run the engine without the outdrive to see if the noise goes away. Oct 25, 2005 12 0 52 Clairmont Name steve Boat Name 22' Center Console "Pasaro" Jan 29, 2010 #1 Intermittently, at idle, I get a low knocking sound in my outdrive. 4 Mercruiser. j-d New member. 7 with alpha gen 2 outdrive has a knocking/clicking noise that I have a really hard time to get rid of. Jul 19, 2014 #1 I have a 5. The noise is a consant rotational sound, More like a Re: 1968 mercruiser 120 with MC-1 outdrive 1. Have 83 270 Sundancere w/ 7. And driving it, it's smooth and seems to Customer: 1989 OMC 4. These ingredients create a protective layer on metal surfaces, softening the “knock” sound caused by metal-on-metal contact. 3 Alpha 1 gen 2 with lower out drive noise Knocking and clunking at idiling. At the time, running the engine with it out of gear and trim down, i would notice a "gear" noise coming from the top area of the drive. No knocking at all in forward. 1L GM based engine that is knocking. So it's definitely in the drive I When my OD made a knocking noise it ended up being a broken tooth from the upper gear cluster. This season it developed a single clunk noise after you put it in gear and put a load on it. Bring it back to the mechanic. 5. Fixing knocking noises from the front wheel when driving can be tasking and challenging. This only happens when the unit is hot. 7GXi IB Previous Boats '08 H240, '08 V318, '04 268, '04 225. I ordered a new outdrive shaft. We pulled the drive and the gimbal and unjointed look fine. with a load on the engine and above 1900 rpm there is what seems like some type of knock or tapping noise. Sep 12, 2023 #13 P. Any ideas??? Because of this, the bevel gear set in the upper end of the outdrive may chatter due to gear lash or clearance btween the driveshaft gear and the forward and reverse gears, I suppose the ideal fix for this is to have the upper half of the outdrive disassembled and re-shimmed to reduce the gear clearance to new specs. We have just about 4,000 miles and a very bizarre knocking sound has developed that sounds like an engine or transmission knock that is very challenging to replicate at the dealer due to the time it occurs under certain conditions only. Just bought the boat. I keep seeing in the forum where the exhaust flapper can make a similar noise. Mercruiser Alpha one loud knocking took the outdrive off. freesound_community. " Any bearing that is making noise means it has a loss of lubrication and corrosion has set in which will produce heat and eventually total bearing failure. No oil leaks, no water leaks, no over heating, tons of power, only one thing. At the end of last season I started hearing a knocking sound at idle and during low rpm. It seems to get louder when the outdrive is turned right or left. A knocking noise in your Hyundai Sonata can stem from various sources, each requiring a different approach to fix. I have a 3. When the boat is in forward there is a rhythmic knocking that increases as the throttle is increased. Submitted: 3 years ago. Yesterday started making loud noise when I put in gear. F. Someone suggested it could be the gimbal bearing. When the boat is in forward there is a rhythmic knocking that increases as the throttle is You will know immediately if the noise is in the motor or the OD. I just took it out for the first time and runs and drives fine except when I get up to around 3000rpms under a load it makes a loud Went to start it this spring and the boat developed a knocking noise, one that I thought could be a rod/bearing. I don't know what you mean by the u-joint seal as they run inside the bellows which are sealed by a worm drive clip at one end and by butting up to the input shaft bearing carrier nose at the other. A1957 Seaman. the boat is already out of the water. There's also a What do you think? I have a 1987 Searay 230 weekender. The gears, shafts, and bearings inside the outdrive transfer the power from the engine to the propeller. now outdrive knocks when put in gear. I have a 94 G W Invader that I bought last year and it has a slight knocking/ thumping sound while under power coming from the outdrive. 7 liter engine and King Cobra outdrive and went for a short ride. Only when accelerating to get on plane. 0 GM Mercruiser Outdrive Engine Noise. freewilly Newbie. 0 Mercruiser 2002 with an Alpha 1 Gen 2 Outdrive. its kinda hard to describe the noise, sounds like a knocking noise to me. There was no water in the bellows, bellows looked good. The drive appears to be making a knocking sound in neutral and it goes away in gear. Apr 3, 2012 9,164 Today's Posts; Member List; Calendar; Forum; Technical Support; SE 106 Tech Support; If this is your first visit, be sure to check out the FAQ by clicking the link above. J. My 99 Four Winns has the volvo duo-prop outdrive and 5. Having seen what would make a knocking noise on front wheels, let’s look at how to fix them. Staff member. the debris in the pleats. I had a low grinding noise, not super loud, but noticeable. There are a couple of reasons why you might be hearing a knocking sound coming from under your car. Mechanic's Assistant: Sometimes boat issues seem like they'll be really complicated, but end up being easy to fix. Thread starter major_tom; Start date May 14, 2009; M. no noise from the top or sides. The noise only becomes apparent when you put it in gear. I'm a new owner of the '89 220DA, but I do know the previous owner had the OD rebuilt a few years ago, and I have the scary receipts to prove Idles and sounds great again. When I started to trim up "ever so slightly" my port drive started to make a very loud clunking noise. Hello all, I’ve got a mercruiser 3. As for the noise you heard it would be a good idea to check the condition of the oil in the lower uint for starters. Common Causes of Knocking Noise in a Hyundai Sonata. The noise does not exist when revving the engine or at idle speed. Engine still starts and runs. 4L and Bravo 1 outdrive. At idle, not in gear, my DP-S makes a very quick knocking sound. i have not had the boat in the water yet because i just brought it out for the spring. The knocking noise Im trying to describe only happens when the 3. The few bad gimbel bearings I've had sort of groweled, more so when the outdrive was tilted up or turned pretty far over. I was hping to find out what this could be a symptom of. Member. Its doing it even in neutral. Then i would think a tooth or 2 went on a gear. An oil additive is a band-aid, not a cure. I have a 2003 Volvo 3. Apr 27, 2010 #4 Lets see first what the numbers are. No knock in idle or reverse. Any ideas on this one? After starting the engine there is a noticeable clanking noise coming from the sterndrive. The boat and motor have probably less than 250 hours (it didn't come with an hour meter). should I start looking for another short block and does it have to be "marine"? top end compression is all six @ 160lbs. It is coming from the REAR of the motor and if you use a bar to try to hear where it's coming from it comes from the TOP of the bravo 3 the loudest. Upon teardown, the bearings in the upper unit were in bad shape. Re: Rattle from outdrive area The mechanic is a well known certified mobile marine mechanic. I have installed a new gimbal bearing and the drive was sent back to SEI under warranty to be checked out. knocking noise can be anything from rods to lifters to oil pump (not sure about that one though), depending on the sound it makes. You'll find both on the propeller shaft. That's how I found it. the RPM in neutral and see if the engine still makes the same noises that way you can eliminate whether it’s in the out drive or it’s in the motor fixed it - was bad ujoint from factory - changed the gimbal bearing but that didn't fix it. Thread starter A1957; Start date Jul 31, 2019; A. Any ideas? _____ 2007 358 T-5. It sounds like a train chugging along on the tracks. movement with the idle of the engine. 3LX with an Alpha 1 Gen 2 drive unit, the original power package in my '96 Larson 174SEi. If it turns out to be one of the I have the 5. The knock was the exhaust system moving around and as the flange started to fail more and getting loose and more movement and louder thumping/knock until it came apart and it stopped, but then I could hear the separated pipe rattling on cross member. chiefalen Banned. Ive pulled the outdrive and no noise there and no noise when the outdrive is off so the only thing i can think of is the engine is out of alignment but i want a second opinion. i have a 2000 bayliner capri, 3. Water My Mercruiser 5. ewumx quumqchj zqlxn bympyxl ivwiqnr amzawc mlod uelq cdjpwf bca