But hey, at least you get potpouri, all I ever get is mouse crap and corn!
As for the compression -
First, I'd say measuring it by amount of wind passing one's finger isn't exactly an accurate measure! Remember these are very low compression engines to begin with. The difference between "perfect" and "not so good" might not be detectable with a finger.
I'd get a cheap compression gauge and check it before wasting any time with it.
But let's say the compression IS truly too low.
I'd dump a little oil in each spark plug hole and retest it. If compression comes up, you've got worn rings.
Pull the valve cover, crank the engine and watch each valve. If they're stuck, it should be pretty obvious that they aren't coming back up when the rockers lift.
If they appear to be working properly - then check the valve lash. (don't get all super accurate, just a ballpark check) The valves could be coming back up to close, but never making it all the way to seat.
It's unlikely they'd be worn so bad that they'd be no compression - the engine would have stopped working before they got that bad. BUT it is possible somebody messed around with them and cranked them too far down.
If valve lash is in the ball park, and they're all moving, then I'd pull the head and take a look. Make sure the head gasket isn't blown apart.
Do a leak test on the head. Put the head on its side and fill the exhaust/intake ports with kerosene. Watch the valves. If kerosene is dripping past a valve, it's too worn to seal.
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Today's Featured Article - History of the Cockshutt Tractor - by Danny Bowes (Dsl). The son of a very successful Toronto and Brantford, Ontario merchant, and himself quite an entreprenuer, James G. Cockshutt opened a business called the Brantford Plow Works in 1877. In 1882, the business was incorporated to become the Cockshutt Plow Company. Along with quality built equipment, expedious demand and expansion made Cockshutt Plow Works the leader in the tillage tools sector of the farm equipment industry by the 1920's.
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