JH Engine oil pressure issues

[brian_wagner at sbcglobal.net (Brian Wagner)]

WIlliam,

My my wifes cabby idles hot at .5 to 1.0 bar, and running dwon the road at
125c with the air on at 75 I am at 2.8 to 3.1 bar. I actually just bumped my
idle to 950 and it now stay at .7 bar and I live in Texas.

Brian
----- Original Message ----- 
From: "calimus" <calimus@techography.net>
To: "John Lagnese" <jlagnese@massed.net>; "Scirocco-l"
<scirocco-l@scirocco.org>
Sent: Sunday, September 28, 2003 4:58 PM
Subject: Re: JH Engine oil pressure issues


> oil pan was clean, very clean.  However, I've swapped pumps and put
> everything back together.  While the pump out of the old cabby provided
much
> more pressure at cold start, after letting the car warm up a bit and
having
> my wife take it for a drive then letting it sit in the driveway at idle
for
> about 5 more min. the pressure dropped back down below .5bar and the oil
> light came on.  At this point the oil temp was 105c which is a bit hotter
> then I like it but I know it's within the running range.
>
> I'm really grasping at straws now because in my limited knowledge, I can't
> think what would cause such a pressure drop once things warm up.  Also,
what
> reading in bar should the car have at idle?  .5, 1.0?  Bently doesn't
state
> in bar.  Getting pretty frustraited at this point so I'm open to any and
all
> suggestions.
>
> William
> ----- Original Message -----
> From: "John Lagnese" <jlagnese@massed.net>
> To: "calimus" <calimus@techography.net>; "Scirocco-l"
> <scirocco-l@scirocco.org>
> Sent: Sunday, September 28, 2003 5:11 PM
> Subject: Re: JH Engine oil pressure issues
>
>
> > There could be crap in the oil pan. Especially after flushing it. If you
> > turn the motor off after the engine is warm is the pressure still low?
If
> > not, pull the pan.
> > John
> > ----- Original Message -----
> > From: "calimus" <calimus@techography.net>
> > To: "Scirocco-l" <scirocco-l@scirocco.org>
> > Sent: Sunday, September 28, 2003 3:57 PM
> > Subject: JH Engine oil pressure issues
> >
> >
> > > This is a bit OT as it's for the wifes cabby, but hey, it could be a
> > > scirocco if you use your imagination.
> > >
> > > Ok, a week or so I posted a similair question, but now I'm in the
thick
> of
> > > things and doen't like what I see.  Both the cars internal gages and a
> > > manual oil pressure gage tell me that after about 15-20min the oil
> > pressure
> > > in the head at idle drops to just below 0.5bar on the vdo gage and on
> the
> > > manual gage it's so close to 0 I really wouldn't know what to call it.
> > Now
> > > this is after bumping the oil up to 20w-50 since the PO's had 10w-30
in
> it
> > > before.  I also flushed the motor twice to make sure all the gunk
would
> be
> > > out of it.
> > >
> > > So I figured that it might be the pump (which documentation shows was
> > > replaced in 97' and only 7k miles put on the car since then, but since
> > they
> > > had it done at a shope I was wondering if it had really been done) so
I
> > tore
> > > the pump out of our wrecked cabby since i knew it was good, then
dropped
> > the
> > > pan on the new cabby and there sites a bright shiny brand new'sh febi
> oil
> > > pump.  Now I'm conserned since the pump looks like it was just put in
> > > yesterday, could it really be bad?  If figure I'll go ahead and swap
the
> > > pumps and see what happens, but I need to know where else I could
> develope
> > > an oil pressure problem in the head after about 15-20min of good 3bar
> > > pressure.  Now the pressure doesn't fall like a rock, but after about
> > 10min
> > > is starts to drop down as the oil temps reach about 80c.  I'm kinda at
a
> > > loss since on cold start pressure is good then falls off.  So if you
> > > guy's/gals can hit me back with things that I can check to try and
> figure
> > > this out, I would be very gratefull.
> > >
> > > Thanks,
> > > William Snyder
> > >
> > > 88' Scirocco 16v
> > > 89' Cabriolet 8v (R.I.P.)
> > > 71' Karmann Ghia
> > >
> > >
> > >
> > > _______________________________________________
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> > > Scirocco-l@scirocco.org
> > > http://neubayern.net/mailman/listinfo/scirocco-l
> >
> >
> >
>
>
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