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I was getting my 67 ready for racing season and fired the engine the other day to make sure all was well (MI, 40+ degrees out). I pulled the valve covers after it cooled a bit, to check the lash, when I noticed a lot of moisture in the covers. Also, there was the usual gunky, white stuff associated with water and oil mixing. Thinking I might have a coolant leak, I borrowed a pressure tester and pumped it up to 15 psi. It held there for 15-20min and only dropped a pound (1/2lb after approx 10 min.) I decided to add Moroso ceramic engine sealer to the coolant, just in case, ran it the required 15-20 min. hot. While I was doing this, I watched my oil pressure drop from 45-50psi to 20 psi. and still had moisture in the covers!
Some racer friends insist that it's normal for this to happen in colder weather. I thought that it was a lot of moisture for it to be condensation but the (pressure) gauge doesn't lie. Am I just worrying too much? The drop in oil pressure might have been from running 5w30 oil in the winter and the engine got warm from idling so much. Has anyone had a similar experience?
Thanks!
Some racer friends insist that it's normal for this to happen in colder weather. I thought that it was a lot of moisture for it to be condensation but the (pressure) gauge doesn't lie. Am I just worrying too much? The drop in oil pressure might have been from running 5w30 oil in the winter and the engine got warm from idling so much. Has anyone had a similar experience?