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Old 03-07-2005   #1
CDeutsch
 
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Join Date: Jan 2004
Location: Ramsey, MN
Posts: 476
Crankcase pressure; oil pool in valve cover

Ever since I swapped a set of stock cams back into my 7 bolt 2.4 with stock 2G head I've been having problems keeping oil in the engine. First time out it blow out the cam end cap (where the cam angle sensor goes on other year cars). Then I replaced it with a new cap and blow it out again. Now the cap is holding (for a quick 10 minute cruize at 15 psi boost anyway) but oil is still pooling in the valve cover. It's probably coming threw the oil cap but the gasket is fairly new. I have both the PCV and the barb that goes to the intake both venting threw a fuel filter and then to a plastic bottle. I don't end up with a lot of oil in the fuel filter or bottle which is odd. Also I did a compression test and it's a little high. It's up 30psi since I initially did it a couple 100 miles after the rebuild to 230, 225, 225, 230. (Compression is 9:1)

I'm going to check the timing next, but even if it was off would it cause compression or crankcase pressure to go up? I'm running out of ideas. This car is about one incident shy of the auction block.

On a side note, I learned that you can't just throw any old cams in an engine without degreeing and expect a power increase. With the crowers I was running I was limited by knock to running about 15-18 psi. Now I've run way over 20 with the stock cams.
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