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    Mercruiser 5.7 thunderbolt v rebuilt twice, now it won't idle

    1996 Thunderbolt V with Bravo 3 drive.... I'm using the factory service manual #17 I have a question about the base timing mode. The purple/white wire is not on the starboard side of the engine, but looks like someone cut it shorter and I found it near the thunderbolt module/knock sensor module...
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    1999 sport jet force 120xr2 auto enrichener question?

    Hello, I have a 1999 sport jet with a Force 120 XR2 serial #0E373430. My question is how does the auto enrichener work and how do you test it. If it works like a standard enrichener solenoid I'd say it's bad, but at $250 I'd like to be sure before ordering a new one. I removed the solenoid and...
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    Mercruiser 90 stern drive. Possible engine swaps?

    The boat is a 1972 Mark Twain v sonic with a Renault 4 cylinder/Mercruiser 90 outdrive. I would like to know if there are other engine/drive options that can be swapped in relatively easily? I was thinking maybe the Mercruiser 120? Will any other Mercruiser drives bolt up to the bellhousing...
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    Is this an engine or prop problem? Please help, tried everything!

    Hello, I'm trying to help a friend fix his 1976 Evinrude 70hp three cylinder outboard model # 70673D. The boat is a 16" Fiberglas Tri-hull rated for 90hp max It has a 13 1/4 X 17 prop on it now. The engine was installed this year and we are using the prop that came with the engine. When the...
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    2003 6.2 MPI water in cylinders. Tried almost everything, any more ideas?

    Hello, I have a 2003 Rinker with a 6.2 MPI and Bravo 3 outdrive. Engine serial #0M616167. Dry joint exhaust manifolds. Last year the pickup on the outdrive got clogged by backing into mud in my channel. The temperature guage shot way up then quickly came back to normal. After shutting it off...
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    1989 Force 125 lower unit driveshaft replacement?

    Hello, I have rebuilt mercury and OMC lower units but never a force lower unit. I have a 1989 Force 125 lower unit short shaft that has bad gears. I bought a used lower unit from another Force but found out it has a longer driveshaft than mine. I know I would need a manual to change the...
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    Overheated Volvo Penta, now it won't idle.

    The engine is a 1998 Volvo Penta 3.0 4cyl. The impeller failed and it overheated, it got hot enough to melt the paint on the exhaust pipes. Since then I have fixed the overheating problems and it runs great above 1500rpm, but it just won't idle smooth. I'm wondering if I blew a head gasket...
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    1987 Mercruiser 165 intake manifold full of gas, but plugs are still dry?

    Hello, I am working on a 1987 Mercruiser 165 inline four cylinder that won't start. I checked compression and had pretty close to 220 across the board. I installed new plugs, points/condensor, cap and rotor as described in the manual. I can see spark on all cylinders with spark testers, and if...
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