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Hobo,NC 01-17-2013 05:19:35 71.30.81.18 Report to Moderator

All you need to do is pressurize each cylinder with air regulated @100 PSI are less NO MORE) The other test are not a waist of time but probably will not help locate a leak that does not affect performance... The pressure difference will most likely be to small on a engine that runs good... Normally the first thing I would do is pressurize the cooling system with plugs removed... Are remove the plugs over night and look in each hole the next day for coolant and do a spin test and look for coolant spiting out a plug hole either in liquid are vapor form... NOW WHY,,, so I know were to considerate my efforts once I remove the head.. I normally am dealing with a leak of this type on a engine less than 10 years old so the head gasket has not aged out,, the time and parts money required for a lets take as guess is 10 times are more than on your tractor... Old tractors,,, for the record head gaskets do not last forever you may find it leaking on all cylinders if so that's a good thing replace the gasket its served its time... If this is the case normally a re-torque will resolve the issue that tells you to replace the gasket its served its time and on the way out... [Reply]   [No Email]