Re: Super A Trouble/ Other Questions! Input Neede

Posted by captaink on June 13, 2005 at 06:52:03 from (66.115.214.56):

In Reply to: Super A Trouble/ Other Questions! Input Needed posted by Mark (PA) on June 12, 2005 at 18:01:29:

If it sounds like a really good running two-banger JD than it is not running on all four cylinders. :>)

If you suspect a compression problem (like a blown head gasket) a compression tester will tell you if you have a weak cylinder(s) and if you need to do a tear down. If all cylinders are at 85# (throttle wide open during the test) or more and are within 10% of each other, then you have what most consider acceptable compression and probably don�t have a blown head gasket or leaky valve.

I�m not sure of the history on your tractor, but it could be points, plugs, wires, ignition timing (or worn or broken ignition advance parts), valve adjustment, fuel ratios (carburetor of fuel supply problems) that are causing it to not put out full power. As far as the hot day I have run my B on days when it is near 100 degrees and it doesn�t over heat. If the cooling system and radiator are in good shape 85 shouldn�t be a problem.

My 2 cents..

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