Quote:
Originally Posted by Patrick L.
I asked this to help without having to remove front cover again. Tooth mis-alignment will affect compression.
70# is high. I think too high for a stock engine/cylinder head.
Is there a chance that the crank was turned while the original gear was off, before the new one was put on ?
There were some gears quite awhile ago with the dimple in the wrong position.
Try removing the sparklers and confirm TDC in #1 with the dimple in place. You see feel the piston top with a piece of wire stuck in the hole at an angle. Just be sure to not feel a valve moving instead.[ that has happened]
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Great suggestions!
Yes, the cylinder head is made of aluminum. I am not sure what is the compression ratio, but it is certainly higher than the stock 4.22 to 1, perhaps it is about 5.5 or 6 to one.