[Vwdiesel] Low oil pressure cause on 1.6 NA discovered

[Area31 Research Facility]

Shawn,

I agree to pull it all the way out and check the rear bearing as well.  I'll
keep the list updated on this but it may be a while as fixing this spare
engine is a background task.

Thanx for the input.

Rob

----- Original Message -----
From: "Shawn Wright" <swright at zuiko.sls.bc.ca>
To: <vwdiesel at vwfans.com>
Sent: Friday, May 20, 2005 10:10 AM
Subject: Re: [Vwdiesel] Low oil pressure cause on 1.6 NA discovered


> On 20 May 2005 at 9:26, Area31 Research Facility <stephensrw at stn.net>
wrote:
>
> > The first engine I obtained and installed in my stationary power
generator
> > project was a 1984, 1.6 NA that I pulled fom a Jetta.  After building
the
> > plant I discovered that the engine had almost no oil pressure once
warmed
> > up.  It was very temperature related indicating that oil viscocity alone
was
> > doing the pressure regulation.  I had always assumed that the problem
must be a
> > stuck open bypass regulator in the oil pump.  Last night I finally got a
chance
> > to pull the pan from this engine to investigate.  Although I cannot rule
out
> > problems with the oil pump I DID SEE a problem that would on it's own
cause the
> > oil pressure loss.
> >
> > This engine had been worked on as the pan was found to have been last
> > installed without a gasket and just RTV.  It did not leak BTW.  On the
> > timing belt end of the engine (I call this the front) the thin metal
strip
> > representing the bearing on the intermediate shaft is curling out of
where
> > it should be.  I can see the entire end of it with locking keyway.
About a full
> > 1/3rd of the bearing is displaced into open air.  I guess someone
damaged this
> > during installation of the intermediary shaft and didn't realize it.
> >
> > I plan to pull the stuff off the front and slide the intermediary shaft
> > forward enough to change this bearing.  Anything I should know?
>
> Only that if you have to slide it far enough to remove the front bearing,
you might as
> well pull it right out. And then, you should do both bearings, or at least
> measure/inspect the other one, they are cheap. I'll be interested to hear
if the bearing
> surface was coming apart as mine were, or if yours is just a case of
sloppy
> installation.
>
> Shawn Wright
> http://zuiko.sls.bc.ca/~swright
> '85 Jetta D
> '88 Westy 2.1L, soon to be 1.6TD 5 speed
>  (see progress at http://members.shaw.ca/vwdiesels)
> '82 Diesel Westy
>
>
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