<VV> Occasional Oil Smoke puff

[BobHelt at aol.com]

In a message dated 11/14/2008 10:23:06 AM US Mountain Standard Time,  
dheath at vanceandhines.com writes:

I have  an issue hopefully someone here can shed some light on.  Every once
in  a while, the engine will give a puff of oil smoke out the left bank.
This  puff lasts for about 5 seconds or so, is always on the left bank,  and
always seems to be when the car has been idling for a long time (10  minutes,
maybe longer).  This happens when I have been in stop-and-go  traffic for
quite a while or if I get stuck at several stop lights in a  row.  The
frequency is never greater than one puff every twenty  minutes, maybe longer.
The puff is pretty thick (embarrassingly thick), so  it must be from more
than a drop or two of  oil. 


Dave,
>From my experiences, there are two likely possibilities. The first is a  
possibility that the ring gaps on that cylinder are lined-up allowing some oil  to 
pass up to the chamber. The second is suprisingly likely. That is the  
possibility of a slightly warped (out of round) cylinder caused by additional  
cooling during the prolonged idling. When the cylinder heats up again, it  returns 
to "round".
Regards,
Bob Helt
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