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    Gear Oil in UJoint Bellows

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    Gear Oil in UJoint Bellows

    It is a 1974 140, I believe called a 1/R drive. I made one last effort last night with PB Blaster and tapping the wrench with a hammer and it broke loose. I really only want to replace the seal on the horizontal input shaft. Do I have to remove the cap and the vertical gears?
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    Gear Oil in UJoint Bellows

    I split the drive and replaced the water pump. Now, as shown in the picture, I am trying to use a spanner wrench to get at the seal in the upper. I don’t have an outdrive stand and am not able to get the unit solid enough in the work mate stand shown to get good leverage on the wrench. It might...
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    I cannot post

    I am sure e moderators are busy, but for the record, I still cannot post without the moderator delay. I also cannot figure out how to contact moderators.
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    Gear Oil in UJoint Bellows

    Mine is pre-alpha, so hopefully, I will be ok. Thanks for the help.
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    I cannot post

    I startesd a thread in Mercruiser repair, but my responses say they are under moderator review. What did I do wrong?
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    Gear Oil in UJoint Bellows

    I started a thread on this, but my response is sitting under moderator review. However, someone did manage to get a post hijack question in. I will proceed with the seal repair. The unit has had upper gears repaired before. How will that change the job?
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    Gear Oil in UJoint Bellows

    Thanks for the candid replies. I will give it a try. I have owned the boat since new. It had upper gears replaced many years ago. Doc, how does that change the job?
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    Gear Oil in UJoint Bellows

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    Gear Oil in UJoint Bellows

    I appreciate the candid responses. You have given me the confidence to give the seal replacement job a try. I have owned the boat since new, and recall the upper gears being replaced many years ago. Doc, how will that change the job?
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    Gear Oil in UJoint Bellows

    I pulled the drive on my 1974 140 out drive and discovered gear oil in the bellows, as shown in the photo. I assume it is from a failed gear end yoke seal. Is that a realistic repair for a DIY guy? I have access to the required spanned wrench, but am concerned that I could mess up the gears if...
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    5.7 Liter running Rough

    It is an inboard Competition Ski with a carburetor, engine serial # OK146780. This weekend I installed a new impeller. At start up, all was well with the impeller/water pump install, but the engine ran rough. I installed new plug wires, which I had on hand since last season when I installed...
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    3.0 Liter Manifold Drain Plug

    1974 140 3.0 liter. The one on the bottom and on the exhaust elbow are stripped. In the past, I may have forced a straight plug into these, but I believe they are pipe threads. Researching prior posts on this I am unsure whether the existing hole is for a 1/8" NPT or 1/4" NPT. Perhaps my...
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    Noise while tilting and turning outdrive

    I completed reassembly of my 1974 140 after transom repair and replacing shift cable, all bellows, water hose, gimbal bearing and shift shaft bushing. Initial operation on the muffs was good, including tilting and shifting into forward and reverse. Now, just before I was ready to put it into...
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    How do I access wires inside Mercruiser harness plug

    The male prong wires coming out of the plug on my 1974 140 are hooked to wires that are colored differently from those shown in the manual and those on the female side of the plug. I uncovered the wires as they come out of the male plug, but I can't tell which prong they are on. I don't see a...
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    1974 140 Exhaust Flapper

    After re-installing the engine, but before installing the exhaust riser and rubber tube, I had second thoughts about my earlier decision not to replace the exhaust shutters. Although I know it would have been much easier to replace the shutters before installing the engine, I figured that the...
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    Exhaust Pipe on 1974 140 Mercruiser

    I'm getting ready to put the engine back in and am putting on a used exhaust pipe to replace the one shown in the picture, which had been gouged badly by the armoring on the lower shift cable. I have a new seal that is an oval o-ring that goes around the opening of the receiving surface on the...
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    Cork Gasket OK for Gimbal Housing to Transom?

    For my 1974 140 sterndrive, I purchased OEM #27-70974, which was foam rubber, but realized it is a bit different (as some have noted on this forum) from the one I need, which is 27-65373. So, I purchased the correct one, which is cork. I cannot find a rubber version. Before I got the correct...
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    Pre Alpha Bellows and shift cable replacement

    I have the engine out and gimbal housing off my 1974 140 sterndrive. I separated the bell housing and gimbal housing and am putting in shift shaft and arm, new u joint, exhaust and shift cable bellows, new water hose and new shift cable on the bench before re-installing on the boat. I ran the...
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    Front Engine Mounts

    I have a 1974 140 4 cylinder that required replacement of the wood that receives the lag bolts for the front engine mounts. The location of the holes was not identified prior to the work. I'm ready to re-install the engine. I understand the need to adjust and align for the up and down. Will...
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