Oil leak

[2tonic6]

Oil accumulates in front main pulley cavity (pulley bolts to vibration damper which bolts to hub) when car is driven for short period. Not leaking between hub outer seal flange and timing cover seal because no oil is found behind hub or front of pan where you would expect to find a leak in the case of worn timing cover seal. There is no evidence of oil behind damper/hub. Just in the interior of the pulley where the collar nut, wave washer and 8mm x 16mm bolts are found. Seems to be worse when driving car as opposed to idling. I can wipe oil clean, drive one mile, and have a teaspoon of oil in pulley hub well. Note: recent 3.5L (1985 e-24 euro, 265 gertrag 5spd.) upgrade with all new seals. 0 miles on upgrade, attempting to address this and several issues as part of the "burn-in".

Also, can anyone verify that running ATF in gearbox is acceptable? I have leaks at gearbox output as well, not around new rear trans. seal, but seems to be from around guibo coupling, this also is worse when engine running, not statically.

WAG- excessive internal engine pressure??? Thanks in advance brothers!

 

[sfdon]

I have made 10 of those engines and never seen that problem. Oil shouldn't move forward towards a fan driven air so maybe you should look above it to the upper timing cover area.

 

[2tonic6]

Thank you sfdon, thought oil might be migrating along woodruff keyway? For oil to end up in pulley by being blown in by fan would indicate leak forward of fan?? The engine timing cover is clean as the rest of engine, is clean as a hound's tooth.