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Last weekend I pulled the y8 head off of my block and put the a6 head back on because I am leaving the country and want my car to be cali smoggable while I'm gone.
I cleaned the carbon buildup off the valves, lapped them and reinstalled them. Cleaned up the gasket surfaces and the ports a little too. Torqued it all down, put it back on with a metal y8 head gasket. I'm running a z6 intake on it as well. Degreed the cam, fired it up, and its been running great all week.
But today I looked in my side mirror as I took off on a left hand turn and noticed what looked like a little bit of smoke where I'd taken off. So when I stopped for some food I reved it while watching the tailpipe and sure enough the smoke was coming from me. Looks like greyish and heavy to me. Smells like either oil or fuel, I think.
This motor was running like a top 2 months ago in stock form before I started the mini-me swap. Never burned oil once. Always passed emissions tests easily. What gives? I don't see how I could have damaged the rings. Maybe I should have replaced the valve seals? This motor and head have about 130k miles on them total. Thoughts?
I cleaned the carbon buildup off the valves, lapped them and reinstalled them. Cleaned up the gasket surfaces and the ports a little too. Torqued it all down, put it back on with a metal y8 head gasket. I'm running a z6 intake on it as well. Degreed the cam, fired it up, and its been running great all week.
But today I looked in my side mirror as I took off on a left hand turn and noticed what looked like a little bit of smoke where I'd taken off. So when I stopped for some food I reved it while watching the tailpipe and sure enough the smoke was coming from me. Looks like greyish and heavy to me. Smells like either oil or fuel, I think.
This motor was running like a top 2 months ago in stock form before I started the mini-me swap. Never burned oil once. Always passed emissions tests easily. What gives? I don't see how I could have damaged the rings. Maybe I should have replaced the valve seals? This motor and head have about 130k miles on them total. Thoughts?