Excessive rear main seal leakage

Messages
14
Location
Pensacola Florida
I have an 89 mustang with the 5.0L HO motor that I run Delo 15-40 in. I replaced the rear main seal a few years ago hoping that it would fix the problem, but its still just pouring oil. Could it be due to excessive ammounts of seal softner in the Delo, or not enough? Should I switch to another oil, add an additive???
 
Messages
18,449
Location
East of IGO
The problem may be improper seal installation,a damaged sealing surface on the crank shaft or block, worn out berings which lets the crank to move around and not allow the seal to work,or some other part or area leaking.The oil isn't the problem. Check the pcv, breather also. [ March 26, 2003, 12:09 AM: Message edited by: Steve S ]
 
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