Quote:
Originally Posted by OldSkull
Now I'm confused! John Hall did a partial rebuild lately (tittle M-18 running rough/missing) and he report 130psi on cylinder 1 and 120psi on cylinder 2 and this is before he open this engine! Check post number one of this thread:
http://www.onlycubcadets.net/forum/s...ghlight=Magnum
Now you tell me you got four M-18 in the 90psi and among them one partially rebuild with 50hr on the counter! 
G...I think I have a brain fart.....Cricket.....cricket  |
George has posted before that these engines don't have really high compression. If I had to guess, mine or his compression tester is out of calibration. The one thing is certain though is that you have a noteable difference between the 2 sides. FWIW, mine was about the same before and after the "rebuild". I'm not near my service manual to see what Kohler has to say is a normal range. Know anyone that will loan you their compression tester to see how the readings compare to yours?