[T3] Puff of smoke

[Bryon Garvin]

Yes, it's FI/MT

On Fri, Apr 22, 2011 at 2:47 PM, Dave Hall <dave at hallvw.clara.co.uk> wrote:

> Over years of owning aircooled VWs, I've had this happen occasionally.  The
> brief puff of (oil?) smoke can happen at each cold start over a few months,
> then just as suddenly stop happening.  It may be aggravated by being parked
> on a side slope.
>
> In an attempt to rationalise this, here is my theory:-
>
> The rings rotate in their grooves, even though we take care to space them
> evenly when assembling!
>
> Inevitahly, the ring gaps will occasionally line up at the bottom of a
> cylinder and allow a small amount of oil into the combustion chamber, which
> burns off when the engine next starts.
>
> It has occurred over such a long period without anything worse happening,
> so
> I don't think it's anything to be worried about.  You can keep an eye on
> the
> oil level to check it's not burning a significant amount.  If not, no
> worries.
>
> If it is actually white smoke, that suggests excess fuel - maybe your cold
> start device is operating when it shouldn't (FI engine?).
>
> Dave.
> UK VW Type 3&4 Club
> ===================
>
> -----Original Message-----
> From: type3-vwtype3.org-bounces at lists.vwtype3.org
> [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Bryon
> Garvin
> Sent: 22 April 2011 19:33
> To: type3 at vwtype3.org
> Subject: [T3] Puff of smoke
>
> Hi all -
>
> Sometimes, and I mean like maybe 1 out of 25 starts, I'll get a puff of
> white smoke out of the tailpipe.  I never have continuous white smoke after
> that initial start.  Is this something to be concerned about ?
>
> I blasted two guys sitting at a sidewalk cafe the other day :(
>
>  - Bryon, '71 Fastback
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