Doing a rebuild on a McCulloch Pro Mac 850.
Started out pretty dirty. Compression at 150psi.
Performed a leak down test and found blow by threw the rings.
Performed pressure test on the crank case and found the PTO side crank case seal leaking. During tare down it had string wrapped around the PTO crank case seal. See pic)
After a lot of cleaning got it apart.
Started out pretty dirty. Compression at 150psi.
Performed a leak down test and found blow by threw the rings.
Performed pressure test on the crank case and found the PTO side crank case seal leaking. During tare down it had string wrapped around the PTO crank case seal. See pic)
After a lot of cleaning got it apart.
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