Originally Posted by Scooter
They shouldn't leak at high speeds if they don't at low speeds. Sounds like a crank case pressure problem. Check for restricted or out-of-time breather.
I don't know about this statement. I had one that was leaking at high speed and not low speed also. Turned out to be just some dirt that got under one of the o-rings. Cleaned the seal and the leak stopped.
Current bikes in the stable:
2009 Street Glide
- 107ci, stage III heads, D&D Fatcat exhaust, Andrews 54 cam, TTS, 108hp 122tq
2003 Heritage Softail Classic
- 95ci, stage III heads, RB LSR exhaust, S&S 510 cams, 100hp 102tq