The information desired from the leak down test is twofold: 1. Is there excessive leakage and 2. where is the leak?

If there is excessive leakage and it comes out of the intake or exhaust it is valve/seat (not valve seal) related. If it comes out of the oil fill cap or dipstick tube it is ring/piston related. If it comes into the cooling system it can be a head gasket, cracked block or head.

What color is the smoke and is the engine clean internally? What weight oil, synthetic or dino? Do you think it is reasonable that some of the smoke is oil leaking onto the exhaust system?

Good luck and please post the results!!!

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