Oil Spraying Out of Dipstick

Q: Oil Spraying Out of Dipstick

I just recently purchased a 1967 bird with a 400 and an automatic tranny. It needs some work but for the most part is all original. The motor has 670 heads and is a YT.

The engine seems to have a lot of power but when I rev it very high I get oil thrown out of the dipstick tube onto my exhaust manifolds. I suspect the bottom end of the tube is missing or the windage? tray is not installed. I am the third owner of the car. The second owner told me that the engine had been rebuilt. Bored .40 and bigger cam installed, heads have been redone.

A: Oil spray out of the dipstick tube could mean excessive blow-by (i.e., the rings are gone or broken ring). Run a compression check before you break the motor down.

A: I had the same problem when I installed after market valve covers. I was waiting delivery on a oil breather, and since I had just installed headers and a RPM performer manifold I didnt want to wait for it, so I just blocked the cover off and took it out for a run. Guess what, oil shot out the dipstick due to back pressure. Suggestion to original question. Make sure there is a clean unblocked breather on one of the valve covers.

Any proposed updates, changes, pictures, and/or corrections, please use our comment section below (may need to click on permalink to access comments feature). Information is subject to change and offered as is without any warranties or guarantees. Please review our Term's Of Use for more information.