SSNs4Evr
New member
Hi all. I’ve got a oil leak - only leaks when the engine is running. The leak comes out onto the oil filter casing/pulley, gets onto the belt, and gets slung everywhere. I took the car off the road in 2013, and the engine has been sitting in my attic till fall of 2019. I suspected the o-ring in the oil filter, which as it turned out, was flat and brittle. I changed the o-ring, but the leak still persists. As there is oil everywhere, and it only comes out when the engine is running, I can’t see exactly where it’s coming from. My suspicion is now the rear main seal, although I thought it could possibly be a build-up of crankcase pressure forcing oil from either the rear main seal or oil filter. Last night I read a few threads about the pressure relief valve, but it convinced me that the valve would not be the problem, so I’m back on the rear main seal. I’ve ordered a new seal, but figured I’d ask for any other possibilities. The car is running really well, and I took it out for an 80 mile drive last week, hitting speeds up to 65 (by GPS). The only issues I had during that drive was the idle being a bit katawonky....it idled perfectly when I first got it warmed up, then a bit slow when I got it off the interstate. I adjusted the idle screw a half-turn which was perfect for awhile, then it was a bit high. I don’t think the oil leak would be from low compression (ring leak-by) because the car is running so well, and has plenty of power (for what it is). I’m going to take the plugs out today and compression test, but I’m pretty sure that it’ll be ok.
Any thoughts? Is my problem most likely the rear main seal?
Any thoughts? Is my problem most likely the rear main seal?