1987Comanche Posted February 4, 2010 Share Posted February 4, 2010 I've been working on the '90 as much as time allows (it goes to work 5X/week) and I've managed to fix 3 of my 4 fluid leaks (radiator, clutch master cylinder, gas tank). The 4th one, for some reason, has decided to be stubborn. My Renix 4.0 was leaking oil profusely when I got her and I had to drop the pan to clean the carbon out of it. While I was there she got a high vol oil pump, new rear main, and new oil pan gasket. The amount of oil leaking remained roughly the same. Fast forward 2 months...I've finally given up on my attempts to make the CCV system function properly and routed the front hose (on a '96 valve cover) to a catch can. When I purchased my '87 2.5MJ she bled oil profusely and 90% of the problem turned out to be the PCV system (motor was out of an '86). Here's the question: Is it worth going back in to do the rear main & oil pan gasket again? When I park I end up with at least a 5" X 7" size puddle of oil that looks like it's coming from the rear main. If the CCV system is at fault and the 4.0 behaves like the 2.5 then it will be a wasted effort because the crank case pressure is too high. For reference I loose about 1/2 quart between fill ups (200-225 miles). Quote Link to comment Share on other sites More sharing options...
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