Recent content by dave8311

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    Merc 4.5, any reason I can't just dump the block and manually fill with pg antifreeze?

    Ok, didn't know that. Thankfully where I live I don't have to winterize
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    Merc 4.5, any reason I can't just dump the block and manually fill with pg antifreeze?

    If there is no water in the block, why the need for antifreeze?
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    1989 Sea Ray thunderbolt no spark

    Kill switch? Neutral start switch?
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    Which coil to use?

    Coils very rarely go bad. I would troubleshoot more before throwing parts at it.
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    Alarm sounding at higher RPM in neutral

    Is there a reason you rev it that high in neutral?
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    3.0 tap/knock

    That pic before or after you ran it? Wrong bearing clearance will mess up a newly machined journal. Are those rods not the ones that came out of that block, originally?
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    3.0 tap/knock

    Sounds like a rod knock to me. You didn't check bearing clearances?
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    1988 Mercruiser 5.7 timing issue.

    Something is wrong with the plug wires orientation or the timing light, or the wrong balancer or pointer. I don't think a sbc will run at 33 degrees. The easiest way to check this is to get or make a piston stop. Take out all the spark plugs, put the stop in number 1 cylinder. Rotate the motor...
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    Can anyone ID the make/model of this boat?

    Right click on the image, select. "Search image with Google"
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    Boat/ trailer weight

    Cat scale
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    Part of my Inner Transom is Rotted.

    Pretty sure someone mentioned this to you before you started pulling the motor, etc.
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    Massive vibrations...then none

    Would a faulty or mis adjusted shift interrupter cause this?
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    I have a 1989 mercruser tops out at 3000 rpm

    What parts were changed or service was done just before the maximum rpm dropped from 4500 to 3000?
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    Reason for plug position when installing u-joint?

    You want the Zerk fitting hole under compression, not tension.
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