<VV> Turbo oil smoke

[Duane, Jim E.]

Oh so been there!  I am now running conventional rings and she's smoke free.   When I removed the Total Seals, I noticed there was no tension on all of the compression rings.

Jim Duane
180 Corsa cvt
Colonial Corvairs CORSA

Sent from my Motorola Smartphone on the Now Network from Sprint!


-----Original message-----
From: John Beck <jb30343 at windstream.net>
To: Jim Simpson <simpsonj at verizon.net>
Cc: Virtual Vairs <virtualvairs at corvair.org>
Sent: Fri, Jun 22, 2012 11:16:15 EDT
Subject: Re: Turbo oil smoke

I've had a similar situation with Total Seal rings.  Try a little
experiment.  When the engine is in the mood to smoke at idle, adjust the
timing a few degrees either way and see if that affects the smoking.  --J.B.

Jim Simpson wrote:
> My '66 Corsa turbo has developed a bad habit lately of blowing oil smoke
> while at idle.  (It's definitely exhaust smoke, not a leak.)  Sometimes
> it's enough to take care of the local mosquito population.  It is a bit
> erratic though.  It seems to be worse when the engine is hot idling in
> traffic, but then after a highway drive it can idle in the driveway with no
> visible smoke.  Fellow Corvair owners who have driven behind me haven't
> noticed any significant smoke while cruising.  The overall oil consumption
> doesn't seem to have changed very much, but the smoke is a bit
> embarrassing.
>
> Any suggestions as to cause?  My preliminary guesses are the oil seal on
> the compressor side of the turbo, a bad intake valve stem seal or worn
> valve guide(s).  I haven't run a compression check, but the engine was
> built about 15k miles ago with TRW forged pistons and Total Seal rings and
> hasn't been driven hard.
>
> Does anyone have a good suggestion as to how I could isolate the problem?
> I have a spare turbo with what "should" be a good oil seal.  I may swap to
> find out if that's the problem.  But is there any simple way to check valve
> stem seals without pulling the heads?
>
> Jim Simpson
> '66 Corsa
> Group Corvair
>   _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are the property
> of the writer, please attribute properly. For help, mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America, http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options: http://www.vv.corvair.org/mailman/options/virtualvairs
>   _______________________________________________
>
>
 _______________________________________________
This message was sent by the VirtualVairs mailing list, all copyrights are the property
of the writer, please attribute properly. For help, mailto:vv-help at corvair.org
This list sponsored by the Corvair Society of America, http://www.corvair.org/
Post messages to: VirtualVairs at corvair.org
Change your options: http://www.vv.corvair.org/mailman/options/virtualvairs
 _______________________________________________