Quote:
Originally Posted by ol'George
ol Skull,
Been my findings that the M-18's run in the #90 range.
I have 4 engines that reflect that.
One engine has new .010 overbore, pistons & rings and about 50 hrs running time and both cyl read #92
The M-20 is stroked a bit, so it could run higher, they say + or - 10%
and with carb butterfly wide open
You can check valve clearance, but I say run it a bit and get a "feel" for it.
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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
