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#573800 - 06/16/20 10:28 PM Knocking in the outdrive  
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WaterWing Offline
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Ok, after 19 years of perfect mechanical performance, my boat is choking. When under load, I get knocking in my outdrive right about where my U-joint is. It only happens when I attempt to go open throttle. It knocks. I know 100% that it’s NOT the engine. So I called to see how much it would cost for new U-joint and while the drive is off, replace the gimbal bearing and replace bellows... $2k. Oh well, I float most of the time. Hope to get by until fall.


2001 Larson SEi-230 5.7 Merc/Alpha1
2013 Ford Explorer
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#573801 - 06/16/20 10:52 PM Re: Knocking in the outdrive [Re: WaterWing]  
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captkevin Offline
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#573802 - 06/16/20 11:09 PM Re: Knocking in the outdrive [Re: WaterWing]  
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WaterWing Offline
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True, but that doesn’t replace my gimbal


2001 Larson SEi-230 5.7 Merc/Alpha1
2013 Ford Explorer
#573805 - 06/17/20 10:13 AM Re: Knocking in the outdrive [Re: WaterWing]  
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captkevin Offline
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Would have thought new outdrive would include a new gimbal bearing. Learned something new today.


2004 Rinker 232
2010 Dodge Ram Crew Cab Laramie 4x4
#573806 - 06/17/20 12:55 PM Re: Knocking in the outdrive [Re: WaterWing]  
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Dave R Offline
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Holy crap, 2k for a gimbal bearing, bellows and U joints??? That's outrageous. That's about 4 hours work, tops, and <$500 in OEM parts.


"Mischief Managed II"
1992 Tollycraft 44 Cockpit Motor Yacht
Twin CAT 3208TA inboards
#573810 - 06/17/20 05:18 PM Re: Knocking in the outdrive [Re: WaterWing]  
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Frantically Relaxing Offline
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Beyond outrageous. This is a quote from a post I made in May of last year:
Quote
{$3600 got me} 2, count 'em, complete {upper and lower} brand new SEI Mercruiser Alpha One gen1 clone outdrives, 2 drive installation kits, 2 gimbal bearing kits complete with new bellows, boots and gaskets, 2 anode kits and 2 new 11x15 props. Not too bad for all that, especially considering shipping the drives was north of 7 bills...


So deduct the shipping and I paid $2900 for 2 complete outdrives, minus rams. The only additions to this, was I paid $140 for 2 good used pairs of rams, as I think $640 new for 2 pair is about as outrageous as 2 grand to change a U-joint! --and the about $85 I paid for the gimbal bearing tool I bought. Replacing the bellows, I've heard that's the worst job there is dealing with an outdrive, maybe your mechanic thinks so too wink

#573815 - 06/18/20 03:18 PM Re: Knocking in the outdrive [Re: WaterWing]  
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WayWeGo Offline
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I'm with Dave on this one. If you work on your own cars, this is not any more difficult than changing a modern wheel bearing and u-joint.


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1975 Trojan F36 Convertible, Twin Chrysler 440's
2014 West Marine AL360 Inflatable, 1966 Mercury 6HP, 1992 Mercury 20HP
#573821 - 06/19/20 10:17 PM Re: Knocking in the outdrive [Re: WaterWing]  
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WaterWing Offline
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You guys are forgetting one thing... I’m 63 years old. It’s time to pay to get things done. I suspect my u-joint issue is 1 or 2 of the 8 clips that hold the u-joint in place must have broken... thus the u-joint moves around more hitting the sides of the shell of the outdrive.
Anybody know if I’m running the risk of damaging my coupler? I want to wait until end of season to fix it. I just won’t gun it and cause the knocking.


2001 Larson SEi-230 5.7 Merc/Alpha1
2013 Ford Explorer
#573822 - 06/20/20 12:57 AM Re: Knocking in the outdrive [Re: WaterWing]  
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Frantically Relaxing Offline
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Don't know about yours, but my Gen1 U-joints have no clips, press fit...

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===============

--and FWIW, aside from what you see, surface rust and some of the same corrosion as the hull got (their anodes helped), there's not a thing wrong with these drives. Less than 400 hours with only 120 horses worth of work applied to them.. Totally quiet in every respect, and after 4 years in the lake, not a hint of moisture in either drive. But- What I paid for 2 new drives just seemed like way more fun than making these right wink

Anyway-- IF it's the joint, chances are one of the trunnion's and its bearing cap has broken or disintegrated needles. An old '67 Lincoln I had WAY Back when had that happen at the the rear-end driveline/yoke joint, and it had double-CV joints like these drives. The yoke spider had 3 good trunnions & bearings, but the 4th was just a rusty stub floating around the rusted out bearingless cap. The driveline and joint was quiet until I got on the throttle hard, then it would clatter as the torque caused the spider to twist. LOTS of vibration too from the driveline.

And I'll be 66 in a month and I'm not paying anyone yet. (but um, I probably WILL pay someone to change out my bellows!)

#573825 - 06/20/20 10:17 PM Re: Knocking in the outdrive [Re: WaterWing]  
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WaterWing Offline
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FR, the gen II does have the clips unlike the Gen I. Maybe they should have kept them press fix.


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2013 Ford Explorer
#573829 - 06/23/20 07:33 AM Re: Knocking in the outdrive [Re: WaterWing]  
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casualboater Offline
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This thread has made me nervous, but I'm in for 1400.00 for gimble, bellows and all rubber parts, universal, lower shift cable and both trim senders.


1989 Larson DC 190
2017 GMC Acadia SLT-1
#573839 - 06/23/20 02:58 PM Re: Knocking in the outdrive [Re: WaterWing]  
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tpenfield Offline
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Boat maintenance and repairs are crazy money, if you have these things done for you. I'm with Dave R on this, and do my own work. I've actually never had any of my boats worked on by a shop or marina. Not sure what that would be like.

I'd recommend learning how to do these sorts of things to anyone who had the inclination. I will say that my most nerve-racking job was replacing the bellows on my twin outdrives . . .

Bravo Outdrives . . .


Last edited by tpenfield; 06/23/20 02:58 PM.

Regards, Ted

Formula 330SS

My Boat Web Sites
#573850 - 06/24/20 06:33 AM Re: Knocking in the outdrive [Re: tpenfield]  
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Dave R Offline
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Originally Posted by tpenfield
Boat maintenance and repairs are crazy money, if you have these things done for you. I'm with Dave R on this, and do my own work. I've actually never had any of my boats worked on by a shop or marina. Not sure what that would be like.

I'd recommend learning how to do these sorts of things to anyone who had the inclination. I will say that my most nerve-racking job was replacing the bellows on my twin outdrives . . .

Bravo Outdrives . . .



Funny, I just paid a guy 100 bucks to tighten my rudder post stuffing boxes last Friday. I tried doing it myself but felt like I was going to break something and decided to hire a pro. He graciously showed me what to do and what tools to use. I bought the proper wrenches so I can do it myself in the future. As it turned out, I was doing it wrong and would have likely done damage had I continued... A man's got to know his limitations.

I will likely be outsourcing buffing/waxing/polishing next season too. My shoulders have not been the same since I did it just prior to launching. Ugh, sucks to get old sometimes.

I hope to never work on another stern drive. I put over 200 hours on my boat last year and when I think back on how much stuff I would need to fix/maintain in 200 hours of stern drive use, I realize they don't seem to be a good fit for my boating lifestyle anymore.


"Mischief Managed II"
1992 Tollycraft 44 Cockpit Motor Yacht
Twin CAT 3208TA inboards
#573857 - 06/25/20 04:57 PM Re: Knocking in the outdrive [Re: WaterWing]  
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WayWeGo Offline
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Oakton, VA
Originally Posted by WaterWing
You guys are forgetting one thing... I’m 63 years old. It’s time to pay to get things done.

I am older than you are...and still going as hard as I can. While I don't have all the stamina or strength I used to, I refuse to admit I am a day over 21! cool

That said, taking the drive off and putting it on is not to be trifled with if you are in less than good shape or have joint issues. It has been five years since I last did it with my Bravo 1 drive.

I am also too cheap to pay anyone to do something I can do myself. The only thing I have conceded is that I won't do some things on my roof or ladder, knowing that accidental falls are a big problem for folks in our age group.

As for Dave R, that is a lot of boat to buff/wax! I am still doing mine, but it is about 2/3 the surface area and I am only 10 years older than you. gunner2

Actually, I will have to see how the hull work goes this winter as I have been having some minor joint issues myself this past year. I may be eating crow come next spring...


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1975 Trojan F36 Convertible, Twin Chrysler 440's
2014 West Marine AL360 Inflatable, 1966 Mercury 6HP, 1992 Mercury 20HP
#573863 - 06/26/20 10:05 AM Re: Knocking in the outdrive [Re: WayWeGo]  
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Dave R Offline
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Originally Posted by WayWeGo
[quote=WaterWing]

As for Dave R, that is a lot of boat to buff/wax! I am still doing mine, but it is about 2/3 the surface area and I am only 10 years older than you. gunner2

Actually, I will have to see how the hull work goes this winter as I have been having some minor joint issues myself this past year. I may be eating crow come next spring...


I have already had tendon re-attachment and rotator cuff surgery on one shoulder and would highly recommend that you don't to anything to wear out your shoulder joints or pop a tendon. The after-surgery shoulder PT SUCKED so bad and took months. I recently donated all my footballs, baseballs, softballs, gloves, bats, etc. since throwing is no longer much of option for me.


"Mischief Managed II"
1992 Tollycraft 44 Cockpit Motor Yacht
Twin CAT 3208TA inboards
#573869 - 06/27/20 01:57 PM Re: Knocking in the outdrive [Re: WaterWing]  
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tpenfield Offline
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Cape Cod, MA
Originally Posted by WaterWing
You guys are forgetting one thing... I’m 63 years old. It’s time to pay to get things done.


I'm 64 . . . laugh


I have been paying to get some home improvements done . . . still keeping boat work to myself.

Last edited by tpenfield; 06/27/20 01:58 PM.

Regards, Ted

Formula 330SS

My Boat Web Sites
#573872 - 06/27/20 09:19 PM Re: Knocking in the outdrive [Re: WaterWing]  
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Jack T Offline
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Should we have an "age day?" I'm 74. Yea. Joints, especially knees and finger arthritis (fingers are bending like never before) continue tell me how old I am.


Have a great day of boating
2012 Monterey 224 FS,
300 HP Volvo Penta with catalytic converters

#573875 - 06/28/20 07:53 PM Re: Knocking in the outdrive [Re: WaterWing]  
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WaterWing Offline
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And that’s my problem... huffing and puffing far more than I used to. Not having correct tools makes it harder too. I used to pull the outdrive off even after a few cocktails... now? It ain’t going to happen!


2001 Larson SEi-230 5.7 Merc/Alpha1
2013 Ford Explorer
#573891 - 06/30/20 03:58 PM Re: Knocking in the outdrive [Re: WaterWing]  
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WayWeGo Offline
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WayWeGo  Offline
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Oakton, VA
One thing that has really helped me is getting some of my extra weight off, well almost half of it. I remember how hard it was carrying a 30 lb backpack in my younger days, but I was 50 lbs heavier than my wedding day when I got serious about getting in better shape while I still could. Don't ask my why I weighed myself that morning, but I did...

Stairs and long walks are so much easier now!


[Linked Image]
1975 Trojan F36 Convertible, Twin Chrysler 440's
2014 West Marine AL360 Inflatable, 1966 Mercury 6HP, 1992 Mercury 20HP

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