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Hi All, Before I proceed with a costly engine rebuild i would appreciate any advice on this. I have a newly refurbed head and excellent compression test readings, 200psi across all cylinders. However in a leak down test I'm loosing pressure, approx 20% on average. The engine does consume rather a lot of oil so there is an issue but not sure where. Also the hot oil pressure is reasonable, 25psi at idle and 60ish at 2000rpm. The engine doesn't overheat and the oil looks fine. Is it due to bore wear? Any ideas as I can't understand the contradicting pressure tests. Cheers