Don,

 I will appreciate those specs. I am familiar with the bypass and screen under the "hub cap"

Local dealer or someone told me 180-200 engaged and 200-220 disengaged. I guess the difference accounts for leakage past the piston that works the clutch pack. In my thinking thats not enough pressure.

When I replaced the first clutch pack and seals in the piston. Pressure was 800 psi(no typo), I don't see what kept from blowing the cooler off of it. I figure the first owner did that to compensate for blown seals in the piston........maybe, maybe not.

I appreciate all help, its got to be fixed before another year.

Thanks to all,

John