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    How to make the two arms even?

    I removed the outdrive in the fall and stored it separately till spring, to finish some repairs (gimbal bearing remove/install). Now when I am putting it back I see that one of the arms is considerably longer (see image): The difference is three inches or so, quite significant. Not sure how...
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    What are these plugs (in U-joints)?

    Dear forum, I am replacing the gimbal bearing and thought to grease the U-joints too (Alpha 1 Gen II). There are no zerks, but these things instead (see the picture below): Are these some kind of plugs? Should I remove them (unscrew with pliers?), put zerks in (is thread locker required?)...
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    What is being aligned, the engine, or the bearing, or both? And why?

    I am replacing the gimbal bearing on my Alpha 1 Gen 2 outdrive of the Mercruiser engine. The old bearing and the seal are out. I wiped off the old grease in the bore and I just looked into it, and I have impression that the engine may not be properly aligned relative to the bore axis. This may...
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    What is a preferred method for removal of the gimbal bearing (hummer vs puller)?

    I am going to replace gimbal bearing in Mercruiser, and it looks like there are two alternative methods. I don't know which one to follow. First method involved a slash-hammer, which puts shock-loads on the transom in the backward direction; the second method involves a puller that puts stress...
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    Something is wrong with "Home made special tools"

    Hi forum, I could not find any way to contact moderators directly, so, I started this thread hoping that someone will respond. OK, I want to check what is available under the "Home made special tools" to remove the gimbal bearing (MerCruiser). There are two tools listed, #3 and #7, but those...
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    REV sound when coming off plane (Alpha 1 Gen 2, Mercruiser 4.3L 1993)

    I would appreciate people sharing their experience on this issue (I understand it is impossible to diagnose without looking at it and hearing the sound, but may be someone had a similar symptoms before). I took my boat first time to the lake this year. Started OK on the driveway, OK in water...
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    Pressing Bearings Onto the Drive Gear

    Is there a detailed description or video for removing old bearings from the gear and pressing in the new once? I am talking about those that go onto the yoke. How far to press? How hard? Will the standard tool like this (https://www.youtube.com/watch?v=1vWeSAQERqU) work? Or I just use the...
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    How important is the last digit of part number?

    I plan replacing the upper bearings (those that hold smaller yoke) in the upper part of Alpha One Gen II outdrive (0D886515), powered by 1993 4.3LX/V6. It looks like the part number is 31-35988A 12. I also noticed that it replaces the original part number 31-35988A 2. Is there a special meaning...
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    Outdrive is quite warm to touch (where the beraings are sitting).

    I had to repair a leak of the gear-case oil in the upper part of Alpha One Gen II. Both the seal had to be replaced and the surface of the yoke had to be repaired (by installing a sleeve). All done, no problem. But, when I started putting the driveshaft assembly together I realized that my...
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    Inconsistency in the manual (for grease)??

    I am going to re-install the outdrive (Alpha One Gen II). On Page 3A-4 the manual says to use 2-4-C for three O-rings on the yoke. But on Page 2A-6 we are instructed to use Engine Coupler Spline Grease for the same O-rings (and the spline, and the pilot surface). What is correct?? Also, the...
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    How much of a groove is a groove?

    I am replacing the upper seal (one on the short yoke) in the Alpha One Gen II outdrive. It leaked the gear-case oil into the bellows and further into the bilge. I hoped to be done by replacing the seal alone, but, as it was predicted by several experts on this site, there is a groove on the...
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    Can oil damage bellows?

    I replaced all the bellows last year and thought that I am done with my outdrive for a while, but this year I found some gear case oil in the bilge... I removed the outdrive and found plenty of the gear case oil in the bellows too. Looks like I need to replace the upper gear case seal, which I...
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    New kind of the oil?

    In the last few years (7 or so) I used Quicksilver Synthetic blend 4-Cycle Sterndrive and Inboard engine oil, SAE 25W-40. I had 1.5 quarts left since last year, and poured that into the engine first. Then I opened a new can of what I thought is the same, although the new can looks slightly...
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    Fuel dripping when the filter is removed. Is anything wrong with pump or carb?

    Hi, While winterizing my boat I noticed something different compared to the previous years. Namely, when I removed the fuel filter (to replace it) I noticed that gasoline started dripping from the filter connection spot. I tried to absorb it with paper towels, and had a few towels wet. May be...
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    Do I have to re-adjust the upper shift cable? (after sterndrive removal/installation)

    I had to disconnect the lower shift cable in order to remove/service/install the sterndrive. To reinstall, I adjusted it to 6 inch as specified, and connected back. I did not touch the upper shift cable. Is it fine to leave it just as it was, or I am supposed to readjust the upper cable too...
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    What grease to use on plastic parts?

    There are several plastic part on the outdrive unit. The manual specifies no lubricant. Is this right? I understand that those parts move very little, but still. Isn’t any lube is better than no lube at all? Those pars include: bushings on the pin rod of the power trim; synthane washers on...
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    Is this the right part? (U-joint bellows with rounded ridge)

    I ordered the U-joint bellows to replace the old broken part. This is an OEM part #816431A 1, by Quicksilver. My boat numbers are: 1993 4.3LX/V6 serial number 0F0244564; the transom is 0F058634; the drive is 0D886515 (Alpha One Gen II). But when I looked at the part, I realized that it is...
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    What did I do wrong?

    Hi, I tried to install the exhaust bellows into the gimbal housing. This is the first and the simplest step, as I thought ? I applied Quicksilver adhesive, waited for 5 min, and then pressed the bellows into the place. Went easy. Then I tightened the clamp. I used a torque wrench and did not...
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    Questions on inslalling bellows (adhesiveness and other properties)

    Hi, I am preparing for installing the bellows (first time, I am a newbie) and I have a concern about adhesive. I got a tube of OEM Bellows Adhesive (Quicksilver) and tried to experiment with it on a piece of rubber (similar to the bellows rubber). I found that it dries fast, and, I am not...
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    Is new old stock part OK? (10 year old rubber bellows for U joints)

    I am going to replace the bellows for U joints on my boat. I purchased an original Quicksilver part that was claimed to be new. Closer inspection of the label shows the year: 2005. It looks like this is a ?new old stock?. The package is faded, although the part itself looks good to me. My...
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