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Could be air leaks..does the idle change and become rough if you remove the oil filler cap at idle?
The valve adjustment itself should not effect a smoke problem..however if when reassembling if something is not tight or reconnected..you could have a problem.
911s are easy to overfill with engine oil too..too much oil and it will get into the intake..and smoke.
Oil level check engine running, at idle, engine oil hot..should be between the MIN and MAX marks. My 911 engines always like to blow off a quart if I run the oil level at the MAX mark hot..they always settled down to somewhere in the middle of the marks..
Last edited by db_cooper; 02-28-2017 at 07:52 PM..
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