Thread: Newly rebuilt fe390 still smoking after intake redo. Leak Down Test? Wrong pcv valve

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No that isn't an 18mm. I am going to try and use the hose off of my compression tester by taking out the valve stem. As soon as I find my stem remover I'm hoping it's removable. If not I'm going to need to order a kit off of Ebay. As for the lifter galley question, I have no idea. This engine was built by someone who raced cars and built many motors so hopefully they had this taken care of.

OK so I did the leak down test. The piston on problem child #6 may have gone down an 1/8 of an inch from being TDC but I'm thinking that would not have mattered. To my horror i am hearing air coming out of my dipstick tube and valve cover breather hole. The gauge was still showing about 35 and in the low range. What would be my next move? A bad ring seems like my problem or maybe this particular cylinder just hasn't seated yet or has some glazing on the cylinder wall. The thought of having to break this engine down again is at the bottom of my list. Do I have any other options at this point other than to keep driving it and see if it clears up?I wasn't sure if there was a way to tell if it's a ring issue or a cylinder issue.