motor rebuild

[jdbubb at ix.netcom.com (Dan Bubb)]

Smoke out the tailpipe after extended idling means you have shot valve guide
seals. (and probably valve guides!) The high vacuum in the intake port while
idling pulls oil past the valve guide and it accumulates in the port till
you gas it and the extra air flow pulls the oil into the cylinder.
What are you doing racing on the street anyway?
Dan

----- Original Message -----
From: der flo <derrickmd18@juno.com>
To: <robw_z@yahoo.com>
Cc: <scirocco-l@scirocco.org>
Sent: Sunday, June 29, 2003 12:17 PM
Subject: Re: motor rebuild


> It was deffently oil buring.  I took the air filter out and it has oil on
> it.  My car is running at 100 on highway and 120 in traffic.  its running
> a little hotter then normal.  i haven't notice a drop in performance.
> but I know when I sit at a light it starts to smoke out the tailpipe.
> but when I tap the gas a little it goes away.  I think its valve seals
> but I don't know.  I did a compression test about two months ago and it
> was 150 in all 4 cylinders.
>
> On Sun, 29 Jun 2003 04:09:51 -0700 (PDT) Robbie Cotner <robw_z@yahoo.com>
> writes:
> > When my 8v smoked I rebuilt my spare 8v, and fought to keep the
> > smoking 8v in the car running until I was finished(took me 6 months,
> > but I took A LOT of breaks and it was my first rebuild).  I wouldn't
> > go through a rebuild unless you needed it, and theres a really easy
> > way to tell:  buy or borrow a compression tester!  You can get a
> > good one at Sears for $25.  Low or uneven compression will show if
> > you need a rebuild.  If you squirt a little oil in each cylinder and
> > the test still shows low/uneven compression that means the problem
> > is the headgasket/head, if compression raises it's bad rings.  What
> > color was this smoke?  In general white means you're burning
> > coolant(usually bad headgasket), black/grey/blue means your burning
> > oil(usually bad rings or valvestem seals).  Is the car running
> > hotter than normal?  Have you noticed a drop or lack in power?  In
> > my experience, if you have bad rings the car will smoke all the
> > time, not just intermittently.
> >
> > -Rob
> >
> > der flo <derrickmd18@juno.com> wrote:
> > I was out racing my car last night and all of a sudden it started
> > shooting smoke out the tail pipe. when I saw this I let off and
> > pulled
> > over and cut the car off. checked everything and it didn't look like
> > the
> > headgasket was blown or anything so i let it sit for 10 mins then
> > started
> > it up. lightly smoked a few seconds then it was ok. I drove the car
> > home
> > and it didn't smoke once. I'm thinking my rings are shot. I have a
> > spare
> > motor in my garage and I have a headgasket kit. I'm thinking if I
> > should
> > rebuild the motor that in my car or rebuild my spare motor and drop
> > it
> > in. What do u guys think?
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