[200q20v] Is it my turbo?
r at cm183316-a.ftwrth1.tx.home.com
Sun Nov 19 04:13:21 EST 2000
As far as Audi turbos go, that is horse hockey. I have never heard of
anyone having to rebuild a turbo on an Audi unless they abuse the crap
out of them. Now if you have a GM turbo, they die after about 65k
miles. I have 2 Audi 200's in my driveway, one with 185,000 and the
other with 205,000 and both turbos are fine.
rich andrews sr.
Brett Dikeman wrote:
> The Bosch TBV was updated fairly long ago because in Saab applications,
> the valve would "hoot."
> To fix the problem, they added a metal piece that drastically lowers the
> resonant frequency of the valve mechanism. It's visible as a brass ring
> if you look inside the valve.
> However, I'm not sure why it would happen on acceleration; unless it
> failed in some new and exciting way, this fact rules out it being the
> cause of the noise.
> I remember reading somewhere that automotive turbos are(or were) designed
> to be overhauled every 120,000 miles or so. Some listers have strongly
> recommended simply buying a reman'd unit, and returning the old one as a
> core...rather than getting slammed by an unscrupulous overhaul shop...
> On Fri, 17 Nov 2000 WARATAP at aol.com wrote:
>> Lately (for the last month or so) under light acceleration as the car vacuum
>> boost gauge makes the transition from vacuum to boost, I can often hear a
>> sound similar to what one makes when blowing over the top of a soda or
>> (better yet) beer bottle. I haven't checked the positive pressure hose yet,
>> but my IC does have a copious amount of oil at the bottom of the endcaps.
>> Anyone else experience this? I'm still getting 20+ lbs of boost, but maybe
>> the bearing is going?
>> I'll be replacing the turbo afterrun pump next week (leaking).
>> '91 200 with a few mods...130k
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