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    Oil pressure

    Leaving old gasket on will definitely cause leakage. Been there!
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    Lower unit wont seperate from top plate i/0 alpha one

    Buy a good MANUAL. YOU WILL NEED IT!
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    Exhaust manifold gasket leak significance

    I have had friends who double gasket Chevy V8s.
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    Lower aft access to hull for hole repair

    UR trapping water??? U can use a shop vac to suck some of the water out. If, after a day it keeps dripping out of screw holes. Try drilling a few limber holes and pray very little comes out.
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    Please help mercruiser 260

    a lot more problems!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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    Flotation foam

    Total transom rebuild required. Photos appear to be of outside? If so, should go from inside out, not outside in.
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    Mounting Bolt Compression of Transom

    Been there! U probably got screwed. ROT!
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    Flotation foam

    Pray what you see is mildew or mold. I can't count the numbers of times in my boats that foam has soaked up water. Drill into stringer and examine drillings for black rot or water. If any, you probably are going to spend a lot of time grinding and re glassing. If not, plug holes with 5200 and...
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    Manifolds (Trying to figure out what I am looking at)

    I had a sea ray with no shutters and had no problems, but friends with other boats had issues with water coming back into riser. I suspect that boaters who back down a lot have more issues that not. Sierra told me over phone that their riser gaskets do not require sealant. they also sell lots of...
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    Manifolds (Trying to figure out what I am looking at)

    Buy some acetone and make a jig or block to seal off ports and pour acetone into both exhaust and then risers. The riser blocks will be the most difficult to build, but if I could fabricate a device, you can too. I suspect y pipe worn shutters are allowing some steam back into head ports. Easy...
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    Slop in steering / power steering control

    depending on the degree of deadrise, Deep V boats don't handle as well holding on a specific fishing spot or trolling Stright at slow speeds, compared to modified V hulls.
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    Bellows replacement

    I have never had problems with Sierra, but I have only had 8 MC motor/HDs since the 1980s.
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    Inaccurate Compression readings due to low battery?

    I had a compression tester's Shrader valve loosen, which caused inconstant readings. I luckily discovered loose valve before pulling heads.
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    Vinyl curtain shrinking.

    It seems that makers would have added material for this issue.
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    Vinyl curtain shrinking.

    I cover my boat with a Big tarp. Unfortunately, due to health issues, I have not been able to work on it much as I would like. However, I notice recently that my curtains seem to have shrunk which is making zippers difficult to close curtains. One zipper broke. Doest clear vinyl do this over time???
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    Lifespan of 4.3 V6?

    if salt used maybe 10 years. something will rot or rust out.
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    Where can this water be coming from?

    and if salt used, pitch motor!!!!
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    Where can this water be coming from?

    It appears to be a freeze plug.
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    Blown head gasket

    If salt used block, pitch it. Insides will be crap too. You may be able to salvage if fresh water used, but I wouldn't chance it.
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    Another prop slipping thread

    water over damn... With OD installed, and with a buddy and a vice grip, stop motor from turning (best way) while you attempt to move prop with a 2x4" If anything moves, pull prop and take to shop and pray it needs repairs and not coupler. I had similar problem with a MC/Proline
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