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Re: Blue Smoke question

Bill.  This is generally an indication that your valve guides are showing
some wear.  When the engine is off, oil leaks down the worn valve guides and
pools on top of the pisto.  When you start the car this oil then burns and
causes the light blue smoke.  As soon as the oil is burned the smoke goes
away.  Since the amount of oil that is leaking past the guides is small, you
only see the smoke after it has had time to build up a bit.

Gary Dietz
dietz@domain.elided

>From: Bill Peters <billp@domain.elided>
>Date: 30 Jul 1996 15:45:42 +0000
>Subject: <misc> Blue smoke question
>
>Hate to ask this, but:
>
>I thought my car didn't burn oil at all, but recently I've noticed an
>increase in the puff of smoke that comes out of the tailpipe immediately
>after starting the car.  Otherwise there is no smoke whatsoever, and it
>only seems to happen after prolonged periods when the car is parked
>(overnight). What causes this to happen?