Re: Mcculloch 4hp no start

[joesnuffy]

I agree a total tear down may be next.

I think the original reeds were the very dirty ones. I think the better looking set came off the donor motor.

I don’t see rust on the crankshaft so I hope the bearings are good also but I do suspect worn rings on this motor. I think what were trying to do right now is get it to hit a lick which it has not. I think we have narrowed it down to the rings now if it does not hit a lick that is why I would like to know how much compression it has after a tad of oil is put into cylinder that and I read that particular motor needed a minimal of 90 lbs compression to run. A person would think 80lbs would do it but maybe not on this motor especially since its air cooled the rings could be just flat worn out.

Hope that helps,
Joe

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