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Re: Smokin' '88 90Q
On Mon, 2 Mar 1998, Phil Payne wrote:
> In message <Pine.SUN.3.96.980302134734.2402Cemail@example.com> Nathan Belo writes:
> > I've got 170K miles and the car is smokin' bluish white smoke when I
> > upshift around 3,000 r.p.m. and downshift leaving a cloud. It is erratic.
> > The car needs a tune up. Tell me I don't need a ring or valve job and
> > it's just a tune up.
> VERY approximate rule of thumb:
> 1) White smoke - vaporised coolant, probably head gasket - usually the back
> if an I5. Acrid smell.
> 2) Blue smoke on shifting - valve stem oil seals. Find the right mechanic,
> and it's a surprisingly cheap job. Burnt oil smell.
> 3) Blue smoke on overrun without shifting - more serious wear, perhaps
> rings. Very rare in Audis - common in Beemers. Tends to smell more
> of vaporised than burnt oil.
> 4) Great blast of blue smoke on startup. Seriously shot turbo bearing -
> too worried to smell it.
> 5) Grey or black smoke. Seriously rich mixture. Just plain stinks.
> Modifications welcome.
> Phil Payne
> UK Audi [ur-]quattro Owners Club
I do have an oil leak from the back and have to add a quart a week. Is
this part of the problem? I haven't been able to figure out where it's
leaking from. Maybe the head gasket?