Neutrals out when hot.

[Steve V]

Got an 85 700r4 that neutrals out when hot works fine when cold. I am thinking seal are getting brittle? I have it partailly toredown and no issues so far. Pump looks good,no debris in pan. Maybe a problem in the input housing. Any ideas?

 

[Steve V]

Did some more picking tonite. All clutches and plates looked good. Looked at all the valves in the VB and they are free. Pump looked good,PR valve had 1 land ground off for "full time lube",1 only do 2 flats but that should not cause this. I air checked all the drums..ok....I need to pull out all the pistons in the input drum and feel the seals.