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la_torta
04-06-2015, 04:56 PM
i just did a complete overhaul on my PCM 351w on a Supra comp, and i came up with sime trouble, engine is overheating, my question is, conventional 351w gaskets are the same as marine, it looks that my cylinders are not getting water, it just gets pretty damn hot down there? impelerr and pump are new and they are working perfect

cheers

lively
04-08-2015, 10:23 PM
what did you overhaul ? did you remove the heads ?

chris young
04-09-2015, 02:05 PM
No personal experience on this, but I do remember something about making sure the gaskets go on the right way. Apparently you can flip them (side to side or end to end I don't remember) but the upshot is that you can end up covering a water jacket. Hope this helps.

mlaosa
04-09-2015, 07:33 PM
Agree with Chris Young. It's very easy to put head gaskets on the wrong way covering up water jackets. I'd sure check it. Have you run the boat on the trailer? If so, are you getting water out of both exhaust pipes? That's what I'd check first before dismantling the engine. Just my .02

lively
04-10-2015, 10:33 AM
That's probably what happened in his case , that's why I asked about the heads ,


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la_torta
05-04-2015, 12:05 AM
I found the problem, the mecanic for some reason put put the wrong gaskets on the intake manifold, the water passagws where blocked... Now it runs cool at 150 farenheith

Thanks everyone

lively
05-06-2015, 12:17 AM
or he put them in backwards for say .. lol

chris young
05-06-2015, 08:28 PM
it's so hard to find good help these days

CornRickey
05-07-2015, 10:49 PM
Other people's kids...