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Discussion Starter #1
I have 90 PSI cylinder pressure on a 1974 H3. 110-120 is what it should be. At what point do I put in new rings?

Pat
 

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Kohler engine info is online just google it
I think 150-180 possibly when they are healthy . Your almost half .
 

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Discussion Starter #3
Kohler engine info is online just google it
I think 150-180 possibly when they are healthy . Your almost half .
I looked in the JD repair manual and it said normal pressure was 110 to 120. This one is at 90, I think for the time being I will just run it.
 
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