Originally posted by CajunSpike
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'78 Ericson27 Atomic 4 Universal Overheating
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Originally posted by chrisoelder View Post. . . . . . I should've done that first and this would have concluded a lot fasterNeil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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Chris
Now it is time for step 2.
If it will work in your engine space, get rid of the 90 degree barbs and go to straight barbs on the manifold inlet and outlet. 90 degree barbs are famous for plugging up with crud.
I've been around this mulberry bush with the 90 degree barbs. After I went to straight barbs the problem disappeared.
You really need to totally flush the manifold. Attach the hose to the manifold inlet right to the faucet. Attach a hose to the outlet and turn the faucet on full blast. I think the directions were posted earlier in this thread.
TRUE GRIT
Edit: See post #17Last edited by JOHN COOKSON; 05-17-2018, 07:23 PM.
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Originally posted by JOHN COOKSON View PostChris
Now it is time for step 2.
If it will work in your engine space, get rid of the 90 degree barbs and go to straight barbs on the manifold inlet and outlet. 90 degree barbs are famous for plugging up with crud.
I've been around this mulberry bush with the 90 degree barbs. After I went to straight barbs the problem disappeared.
You really need to totally flush the manifold. Attach the hose to the manifold inlet right to the faucet. Attach a hose to the outlet and turn the faucet on full blast.
Good news! Just got back from our sunset sail and the engine ran amazing. She did great with higher speed, rougher conditions, and even under sail with a good heel.
Very pleased with my A4. Thank you again, everyone!
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While you are at it it would be a good idea to re plumb the manifold for the thatch modification. The thatch modification is where cooling water is introduced into manifold at it's low end and comes out of the manifold at the high end. This eliminates air pockets and results in more even and through manifold cooling. Search the forum by "thatch modification" to read all about it. There have been many posts on the subject.
Glad to hear you got the over heating problem solved.
TRUE GRIT
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