I am beginning to experience a smidgen of oil drip coming from between my left head and block. I have the A3 heads and appears to be stud gridle through the valve covers. I am running synthetic, so maybe a very small amount of oil drip is normal, however there was none over the last 3 years or so. Do the heads need to be torqued every so often? And if so, what would be the proper torque for the heads, the stud gridle, and the valve covers? Photo shows the engine set-up.
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