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Hi team, It nice to have the "Go To Guys" around when you have question. Thanks in advance. This year I changed a raw water exhaust maifold and heat exchanger on the starboard side. Cummins 504's When I filled the tank I notcied anti freeze dripping from the thru hull raw water intake and the strain...

Welcome, I run an '80 FBC with the same engines on Cape Cod and have owed her for 12 years. I can tell you from experience they are trustworthy work horses that have always gotten me home. As someone stated they are rated at 3000RPM I cruise at 2700 and push about 17knots with full tank. For some ne...

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Giff, I have the same engines. I stay on top of mine year to year by touching them up where needed. The outsides under the mainfolds are the hardest places to spray. I clean them down with acetone, wire brush. Used to prime but gave up on it a few years ago. I found that spray appliance paint works ...

Well Andre I think we found part of the problem. A friend and I took a good hard look at the raw water mainfold and spotted a rather large hole betwen the fresh and raw water sides. It was right where the bolt passes through the mainfold. I think this explains my consumption of fresh water on extend...

Andre,

She's a '80 all original and been real good to me. Other than updating all the electronics and good basic maintenance she owes me nothing. In fact I owe her. I'm trying to get another year or so out of the clunkers before going for the gold on new engines.

You still running your 504's?

Mitch, Thanks for your response. I think I used Dave many years ago when I first bought the Eliana. He is very knowledgeable and did me well. I have a spare 504 in the garage which I will use for parts. Since my post the other day I've engaged a local mechanic to take a look which should happen in t...

I'm starting to get ready for the season here on Cape Cod and went down yesterday to start on the raw water pumps. Got them off and ready in good time so then turned my attention to the inboard port enigine exhaust manifold. On my last trip last year I ran that engine (Cummins 504 NA)pretty warm but...