How Much Oil Do you Use?
dbpulvino at hotmail.com
Sat Jan 17 15:08:05 EST 2004
Thanks for the info Bernie. I'm going to have to take some time to digest
that one, and implement a troubleshooting plan. I think I've got somebody I
can borrow a compression tester from.
And Alan, that's a good point, I really don't know how much longer I'll have
the car, but I also want to think about the lifecycle of the car itself, in
so much as I don't pass on a "doomed to die soon" car to the next user. At
this point, I don't see another car mortage in my near future, so it may be
another 100k that the 200's sticks around for!
> > From: "Derek Pulvino" <dbpulvino at hotmail.com>
> > Date: Fri, 16 Jan 2004 10:05:58 -0800
> > To: jmajau at balt.net
> > Cc: 200q20v at audifans.com
> > Subject: Re: How Much Oil Do you Use?
> > May be a bit exagerated, I don't see any oil burning residue on the
> > bumper of the car.
> > I don't feel like reworking the equation, but roughly 250k miles to come
> > even from this "burn rate" if I add 02 sensor costs every 50k miles.
> > Hmm, now we're at total mileage on the car of 450k...maybe a little
> > the life expectancy? Still doesn't balance out.
> > But still didn't answer the question, why is this happening. What are
> > potential culprits? How can I be sure it's the head, and not turbo
> > or a problem with the crankcase vent system? I figure leak down will
> > me block vs. head, but how could I tell about the turbo seals or if the
> > cranckcase vent system is my culprit?
>There are no common, contact type, elestrometeric rotary shaft seals, just
>labyrinth seals across which there is positive gas pressure to the return
>oil passages. Bearing wear causes seal clearance wear with resultant oil
>blow by. If the turbo to IC and the IC to IM hoses are heavily oil wetted
>you have either a piston blowby problem coming thru the crankcase breather
>system to the turbo fresh air input (the compressor wheel should be oil
>coated), or the turbo bearings are shot, (the compressor wheel not oil
>Do a compression check, first dry and second with oil injected into the
>cylinder to better seal any ring leakage. If no dif, you have a valve
>problem. Incresesd comp points to a ring problem.
>Tis good to isolate the source of your problem, such that it is easier
>monitored, but DFI if IAB!
Check out the new MSN 9 Dial-up fast & reliable Internet access with prime
More information about the 200q20v