High water pressure
I noticed that my port engine was running more water pressure than my starboard engine. The starboard engine runs about 35 psi but the port engine pegs the gauge 45+. The oil pressure is slightly higher on the port engine as well. The starboard runs about 40psi and the port 50psi. Is this anything I need to worry about?
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You need a pop off valve for both engines. 45psi is way too high and 35psi is pushing the limit.
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Closed cooling likes more pressure but 45+ is pushing it.
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I have pop-off valves and I know they do relieve some pressure. Would a stuck closed thermostat cause this. I am going to pull mine tommorow and take a look. Anything else, anywhere else I should check?
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Fresh or salt water boat? Clogged risers will cause increase in water pressure too.
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Fresh water
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Originally Posted by rgrgoog
(Post 3372831)
I have pop-off valves and I know they do relieve some pressure. Would a stuck closed thermostat cause this. I am going to pull mine tommorow and take a look. Anything else, anywhere else I should check?
You can take the pop off valves apart and cut the springs down to reduce the pressure more. |
Fixx
Are you running cross overs or circulation pumps?? drill 3 3/16 holes in the thermostat, that will relieve some pressure.
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Originally Posted by Griff
(Post 3373138)
I doubt a stuck tstat would cause it, unless it was overheating also.
You can take the pop off valves apart and cut the springs down to reduce the pressure more. |
Fixx
Originally Posted by rgrgoog
(Post 3373160)
Where are they exactly located on the 502 MPIs? I know I have them just not sure of the exact location.
If thease are stock engines you will need to install a set of water relief valves and the plumbling.. |
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