Memphis2857, I think you and Neil (and everyone above) are right about your assessment... last year I had black transmission oil at every oil change, losing trans oil (put 900 in, got 700 out when drained at oil change time), exhaust spooge all over, and running rich. And yes vacuum from piston going up was pulling trans oil into the crankcase, and I would drain a small amt of trans oil out at each oil change, maybe a few cc's. These are symptoms of leaking R side crank seal (and maybe main case seal?). Changed the right hand crank seal and viola, trans oil clean now, no volume loss at oil changes, and nasty spooging gone, running much cleaner since then...
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07 GG EC300
11 GG EC300E
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