|
Rick, All the guys above I am sure have vast more engine experience than I ever will. It also sounds like your float/value/seat has permitted the gas to freely flow into the engine...turning the gas off whenever you leave should become a ritual. Regarding the compression testing, this is where I have been doing some research and have had some discussion with various JD mechanics. Your delta of 25psi seems pretty high. It is also peculiar that you alternate exactly from 100 to 125 between both 1&2 then 3&4 respectively. After you get your float issue resolved, go back and test the compression again...if your delta's are reduced downward to 10-15 points, that's much better. However, if they are the same, then add some viscous [clean] oil to the 100psi heads and try again doing [exactly] all the same things you did previously to keep your testing methodology the same, except for adding the oil. If the PSI increases 15+ points on the 100psi heads, then you may have some internal issues. However, this is just a tool and further detailed examination is probably warranted. For your convenience, here is a link from YT's article section on compression testing. It should give you the information you need to further test your heads: >Link Good>Link luck,
tom
|
