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    confused about direction of lower seal of A1 sterndrive

    The manual (page 3A-29) says to install the lower oil seal of drive shaft housing with lips facing up (toward top of housing) whereas at the relevant picture the sterndrive is up side down.So, the lips of the lower seal face the real top or the real bottom of the housing? And something else,do...
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    Do you repair your shafts when worn from a seal?

    The compression test i carried out last season at the lower unit of my pre-alpha outdrive(MCM228) showed no leak,however the milky oil leads me now to the shaft which is worn from the seals of the lower unit of the impeller housing.I don't want to invest money on such an old outdrive ,so may you...
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    problem with a brand new Sierra coupler for GM350

    hello everybody I wonder if anyone has had a similar problem.I swapped from a 305 to a brand new 350 old style(with the 12 bolts at the intake manifold),i bought a used flywheel because the old one was smaller and a new coupler.When placing the engine onboard and trying to align it i find out...
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    Somebody who knows SRV-220 1978

    For 3-4 weeks i had my bilge full of water due to engine problems.Now i have taken the engine out to replace it it's a big chance to freshen the bilge and the small water pocket in the front of the boat( i don't know it's name ,i call it bilge front).While taking the water out i noticed that...
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    A1 gimbal bearing question

    Is it possible to get a gimbal bearing out of its carier by turning it 90 degrees ? I saw it at dockpartners' site and i have a new one (Siera) in my hands but it seems impossible to turn it while keeping the carier steady.Has anybody tried this?
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    A1 impeller housing question

    Examining closely the impeller housing i noticed a small hole at the lower part of it just above the double seal .Does anybody knows its purpose ?Doesn't it looses water from there?
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    Is there a way to check front -rear engine mounts of a 305 1979...

    ...or based on the year i have to discard them and buy new? Swapping to a 350 means any change on their type? May somebody give me the weight the front mounts are designed for?
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    where to catch the chain to lift my 305

    I saw at youtube.com a profesionalist who suggests to use a plate to bolt on carburator's place and grab the hook there.What is your opinion?
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    put in my Ypipe new flappers or not?

    Hi again, Before replace my 305 with a brand new 350 i want to ask the following: I'll keep the old outdrive (228) and the old cooling system with the long exhaust manifolds and the elbows at the back and the thermostat housing with the 8 hoses.Between my ex.manifolds and risers there is a block...
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    gm 305 to new350 swap

    hello again.i 'm thinking about replacing my gm305 1979(mcm 228) and keep for some years the pre-alpha 228 outdrive. I 've found in good price a new block 350 but i'm afraid if i can use all the stuff i've got for the 305 or not.Distributor,cooling system with the long manifolds and the elbows...
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    help resurfacing gm 305 79-82(mcm 228)heads

    The heads of my engine have already been resurfaced one time .02mm and now they need a second resurfacing.A car mechanic told me to go at a special workshop to cut the gasket head at the appropriiate width whereas my merc-sierra dealer told me that this kind of gasket will have not rings durable...
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    What type of fuel you use in old GMs?

    In my country there is still available the old gas for cars before the introduction of injection that we call "super",the unleaded and the unleaded 100 oct.I asked a friend his opinion about starting using unleaded for my GM 305 (1979-1982)(until now i use the"super") and he replied that maybe...
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    gm 305 79-82(mcm 228) overheating

    May somebody who is absolutely sure tell me if the gasket between exhaust manifold and elbow for seawater cooling system(raw water) has water passages? Here is the manifold and the elbow is the one at the left.My engine has the thermostat with the 8 hoses ...
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    gm 305 coil,fuel pump

    Can i try a coil and a fuel pump from a gm350(thunderbolt iv) to my gm 305 78-82 (Mallorydistributor)?My fuel pump is dual diaphragm while 350's is Airtext type.My problem is that i can't go over 3800-4000rpm. May somebody describe the symptoms of a bad coil?
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    how to check the water circuit at sea-water cooling system

    GM 305 (mcm228) pre-alpha outdrive (228) My boat is now at the garden in muffs and i do my best to avoid having again temperature problems.I've checked and replace many things and i wonder how to check the water circuit.If there is somewhere a leak for example at the water pump or somewhere else...
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    gm305 1978 thermostat question

    i want to ask something : From my thermostat housing (oem#78984 with the 8 hoses) it was missing the cork gasket and the sleeve.Since my acces to spare parts is a little difficult may you tell that without them the only problem would be that the engine would get warm more difficulty since the...
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    A1 bell housing gasket

    May somebody tell me the fat of the bell housing gasket?Last season i replaced everything and since i have the tools i intend to cut it myself.Is it crucial the fat of this gasket?(actually my outdrive is prealpha ,mcm 228 1978,but i suppose it's the same gasket at least about the fat)...
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    results of compression test GM305 1978(not running WOT)

    I give you the results of the compression test. 1-150,3-150,5-150,7-145 2-147,4-145,6-135,8-125 According to the specs everything is ok but i don't know whether the gradual decrease of compression at the starboard side is a mater of coincidence or indicates something.What is your opinion?
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    two questions about the compression test

    Hello everybody.Prior to a compression test that i should have done many months ago searching for the problem "not running at WOT" at a GM 305 1978 i 'd like two ask two things : a)the updated service bulletin says to carry out it at room temperature.The temp in my country now is 8-10 Celcious...
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    Are these water hoses right connected (gm305 1978)

    After reading some old threads about water increase temperature above 2500rpm i start doubt if the hoses in my gm 305 are right connected .I have a similar problem and since i've replaced everything now i wonder about that because when on muffs i remember that after some seconds from the start...
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