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    A1g2 reseal question

    I am with Rick on this. I had never opened up a Mercruiser drive before, but did so a year ago on a unit with three times the hours of yours and replaced the input seal only and it is going great with no further leaks. For under $50 you can do a lot of boating and save the replacement drive for...
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    Mercruiser 140 front mount looks odd.

    Attached is an exploded view of the 140 mount and some pictures of my 1974 140. It is tough to see, but the soft washer does sit up above the mount. Boat is in storage, so no new, better pictures.
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    Push rod cover gasket replacement and distributor

    I lived with an oil leak for years on a 1974 140 4 cylinder, thinking it was the pan or rear seal. When I finally had the engine out, everything looked good down below, but I discovered a small leak at the back of the valve cover. A few drops of oil looks like a lot in a bilge, and leaks are...
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    MC-1 Trim Cylinder Rebuild

    I recently replaced just the split outer tube with an eBay purchase, part number you recited. I did not replace any internal parts, as they were ok and it is working fine.
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    What is this and where does it mount?

    Here is how my 1974 4 cylinder is set up. Note the valve is independently mounted on the transom and the lockout switch is on the transom mount assembly. A few years ago, I had the engine and all mechanical gear out of the boat and rebuilt the transom from the inside. I screwed the reverse...
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    1974 R-1 140 Outdrive Shift Cable and Kill Switch Adjustment

    Thanks for the link to the potential alternate switch. Does anybody know if just a simple continuity test is sufficient to test the switch?
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    1974 R-1 140 Outdrive Shift Cable and Kill Switch Adjustment

    Well, that is embarrassing. The attached picture is of the interrupt switch, correct? If I depress the switch while running on the muffs, if it is working, will it kill the engine? Other than that test, it appears I will need to be out on the water to test the interrupt. If there is a...
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    1974 R-1 140 Outdrive Shift Cable and Kill Switch Adjustment

    After pulling the outdrive for gear seals and water pump replacement, upon re-assembly and start up I followed AChris’ sticky on adjustment. All started out well, but then the engine shut off while going into reverse on the muffs. After a few more tries, it started shifting into reverse without...
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    Mercruiser 3.0 strange sound at low end acceleration

    I have an older 3.0 that made a similar noise that would come and go as you have described. It went away when I removed the remains of the exhaust flappers and replaced them.
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    Can't get serpentine belt back on

    Is there any chance that the seawater pump was re-installed improperly, causing the pulley on that pump to be mis-aligned?
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    1974 140/1R outdrive tilt/trim

    The empty tube is probably the best/cheapest route for me. I see there are even some new OEM Mercruiser #77442A1 tubes on ebay. Thanks much to Kenny and Doc for the help.
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    1974 140/1R outdrive tilt/trim

    Well, it turns out that when I was checking for proper shifting after the drive reinstall, I left the shift lever in reverse. Later, I attempted to raise the drive by pushing the top two buttons on the switch, but got no solenoid click or pump action, because the reverse lockout switch...
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    1974 140/1R outdrive tilt/trim

    I tried to correct my original message. I meant to say I "checked" the operation of the tilt after installing the drive and it was fine. I do need to see if the shifter was in reverse. If it was, that was the reason the drive would not tilt up and I will be embarassed. The wiring diagram...
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    1974 140/1R outdrive tilt/trim

    Checked the tilt not hacked.
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    1974 140/1R outdrive tilt/trim

    After installing a new water pump and yoke seal, I reinstalled the outdrive and. Hacked the hydraulic tilt and all was well. A short while later I tried to tilt with the top 2 buttons of the three button switch and there was no solenoid click and no action. I charged the battery, which did not...
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    Cupped washer on Prop shaft

    About the time you think you have the parts applicability figured out on the old units, you find something new. Thank goodness for the internet and the vintage NOS guys for availability. Thanks for researching it.
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    Cupped washer on Prop shaft

    Thanks for the link Fun Times. I have not been able to access the Boatinfo manuals before. You are correct that the manual does not show it. I saw it on the mercruiserparts.com parts drawing at item 81, part #12.35965. It shows it located aft of the prop, under the splined washer, so I don't...
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    Cupped washer on Prop shaft

    In looking at the parts diagram for my 1974 1R drive, I see part 12-35965, described as a cupped washer behind the splined washer on the propeller shaft. There is not one there now and I don’t recall seeing it in the past. Some models have a continuity washer in that spot. Pictures of this part...
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    Gear Oil in UJoint Bellows

    Thanks for the help Scott. The yoke assembly did not come out easily, but here it is on the the bench with a shot of the driven gear as well. Both look good to me, so I don’t think I have damage from the leak. There were two shims, which I have left as they were in the housing. I have only short...
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    Gear Oil in UJoint Bellows

    Thanks for the help Scott. The yoke assembly did not come out easily, but here it is on the the bench with a shot of the driven gear as well. Both look good to me, so I don’t think I have damage from the leak. There were two shims, which I have left as they were in the housing. I have only short...
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