[Vwdiesel] Turbo talk for beginners ---( Hagar needs help )

[Shawn Wright]

On 24 Sep 2005 at 6:42, H .  Hagar. <h_hagar at prcn.org> wrote:

> Hagar is a NEWBIE to  turbos.--knows jack all about a VW Garrett turbo ---except
> -  I am greatly impressed that one of those things can keep trucking for more
> than 20 years and 261 000  KM  without complaining.
> 
> Turning right lots of rumbling --turning  left -- NO noise.----So I go looking
> for a wheel bearing gone bad.---could not find one --   Question :  could it be
> the turbo bearing ?  . I took her out yesterday  -- intending to motor down a
> hill engine off ----met up with Lenora  ---we picked Pears of one of her
> trees.---I have never seen such a harvest on a small tree.----DIY  juice by
> Hagar.
> 
> But I get the impression that as engine oil heats up ---noise increases. ? 
> ---Hope it is not a little of both.

Less oil pressure with hot oil could be the cause. In my case, the turbo was noisier 
just before I pulled it, and there was an alarming bearing like noise on shutdown, 
which I thought was compressor wheel rubbing on the turbo housing. Turns out it 
was coke on the turbine side. Could be that your seals have also gone, coking up the 
turbine side. 

Shawn Wright
http://zuiko.sls.bc.ca/~swright
'85 Jetta D 
'88 Westy 1.6TD 5 speed
 (see progress at http://members.shaw.ca/vwdiesels)
'82 Diesel Westy