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Thread: 401 swap
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post #6 of (permalink) Old 07-16-2001, 11:27 PM
**DONOTDELETE**
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Re: 401 swap

We have found that the oil filler cap can get worn out and actually have oil blow back out around the seal inside the cap, I've also had a dipstick seal (where it goes into the tube) dry out from the heat and blow back up the oil tube. A bad pcv valve can cause enough pressure in the engine for the oil to find a way out. Other than that it seems like trouble shooting time and degreaser.

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