TwinTurbo.NET: Nissan 300ZX forum - Took it to the machine shop, he used a vacuum tester on it
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Subject Took it to the machine shop, he used a vacuum tester on it
     
Posted by ttsmokin on July 04, 2013 at 10:41 PM
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In Reply To try putting the cams back in and recheck leak down posted by aliaZ on July 04, 2013 at 10:13 AM
     
Message The two exhaust valves on cyl 6 are not sealing at all, they appear to be bent when spun in his lathe. He said he will look into it more tomorrow and let me know.

I pulled the cylinder head off the other side, it looks so much cleaner, less carbon. Perhaps I have tapered or out of round bores that pass oil through and that is why the piston rings worn a little off.

Might be time to do a full rebuild, I hate to do the head work and leave a bottom end that might not be 100%.

     
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