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  1. C

    New repowering project... does exhaust really need to be cooled?

    I am looking at buying a boat that originally had 2 Volvo I4 sterndrives that I want to replace with a pair of Mitsubishi 2.5L diesel engines. Trying to think of all of the major repowering obstacles, and one of the ones I was looking at was the exhaust. All of the sterndrives I have worked on...
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    Very Low Compression

    I ended up getting water in my engine courtesy of the manifolds, and now I have very little compression. I have anywhere from 35 to 50 psi on 7 cylinders, and 85 on one. From what I understand, the pressure should be around 150 psi ('91 mercruiser 5.7). This is a relatively fresh rebuilt...
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    Good source for new manifolds?

    Still need to do a little troubleshooting, but I am pretty sure my manifolds are shot (Thanks, Don S for the help). Anyone know of a good source for these? I need them for a '91 Mercruiser 5.0.
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    Spark, fuel, and air right???

    For some reason I can't get my mercruiser 5.7 to start.<br /><br />Background- It started life as a '91 5.0 and I upgraded to a 5.7 when I rebuilt it (new short block). Saltwater cooled, 4 barrel carb, A1 outdrive, Thunderbolt ignition.<br /><br />It was stalling whenever I shifted, so I tried...
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