[Vwdiesel] RE: re riniging rabbit oil pressure bad

Tue Oct 19 12:48:09 EDT 2004

  It was from my '89 hydraulic that was in the car originally. It only had 
69k on it but dropped a precombustion plug and trashed the head and lip of 
a cylinder, ruining the entire engine. So I figured it was just the ticket.

Bart

At 09:28 AM 10/19/2004 -0500, you wrote:
>Was the camshaft you put in from a hydraulic head of a solid lifter head?  I
>do not think they are interchanable.  Hayden
>----- Original Message -----
>From: "Bart Wineland" <bwinelan at allegheny.edu>
>To: "greg rich" <greg4vwparts at hotmail.com>; <vwdiesel at vwfans.com>
>Sent: Tuesday, October 19, 2004 8:40 AM
>Subject: Re: [Vwdiesel] RE: re riniging rabbit oil pressure bad
>
>
> > Oh no.  Replace camshaft? Yes I did, line bore? No I didn't.  The guy that
> > rebuilt it originally 25k miles ago broke away the cam slot where the lock
> > plate goes. I took the cam from my original low mileage 69k engine and
> > thought it fit just perfect and thought myself pretty handy. I did measure
> > the journals as careful as I could with mics. and they appeared identical
> > but sounds like it is not that simple? I re-used the bearing caps that
>were
> > in it. I think I am taking my lumps for being a bonehead.
> > thanks,
> >
> > Bart
> >
> > At 09:01 AM 10/19/2004 -0400, greg rich wrote:
> >
> >
> > >Did the intermediate shaft bearings get changed? -both?)
> > >my neighbour had a machine shop rebuild his 1.9 td and they didn't change
> > >them, exactly the same situation, lots of cold oil pressure, non when
>hot,
> > >he lost his turbo very soon afterwards...
> > >It took three times for them to figure it out (re and re engine). They
> > >would not admit to it being there mistake. They kept saying they
>installed
> > >a new oil pump, sure it was new but no markings on it (was it meant for a
> > >turbo diesel?) as they are larger pumps.
> > >
> > >I don't think your head can cause low oil pressure like that UNLESS you
> > >changed the camshaft and the bearings don't match-the cams are not
> > >interchangable without a line boring to match them.
> > >
> > >
> > >Most machine shops that are not familar with VW never know about those
>two
> > >bearings inside there.
> > >Check over your bills and see if they were done
> > >Greg
> > >
> > >
> > >Re-ringing a Rabbit --Oil pressure test bad
> > >
> > >>This is exactly my problem with oil pressure.  I get great pressure on
>start
> > >>up 70 psi using 15w-40 shell, once warmed up I get 8psi at idle and
>20psi at
> > >>55mph in 5th gear. This reading from the oil filter housing port. The
>head
> > >>shows zero pressure after warm up. This is after a complete rebuild, new
> > >>everything except the head. It still has the original valve seals which
>had
> > >>40k on them, I'm a dumb A@@ for not changing them out. The machine shop
> > >>decked the head to make it flat due to it being out by .004  They looked
> > >>over the rest and said it looked good and it vacuum tested great so the
> > >>valves were sealing. I should have just had them do a complete head work
>and
> > >>been done with it but I wasn't thinking. The engine has new pistons,
>rings,
> > >>bearings and oil pump. So the low oil pressure is a mystery and the
>engine
> > >>has 3300 miles on it now running with low oil pressure. I installed the
>head
> > >>and followed the Bentley to the letter. Gasket is installed correctly,
> > >>torque bolts to specs everything. Could it be possible that the cam
>saddles
> > >>are worn excessively? Just a thought.
> > >>Don't mean to make this sound bad but it is good to see someone else out
> > >>there with the same problem. Maybe, finally this low oil pressure issue
>can
> > >>be solved.
> > >>I have light smoke blue in color out the exhaust, but only after the
>engine
> > >>is warmed up, at least it seems that way for the most part, don't notice
>it
> > >>much on initial cold start up and run till warm. I do get black smoke
>under
> > >>heavy acceleration, even thought this is an ECO diesel. I wonder if my
>cat
> > >>is shot now?
> > >>Nick
> > >>
> > >>
> > >>
> > >>
> > >>-----Original Message-----
> > >>From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]
>On
> > >>Behalf Of Bart Wineland
> > >>Sent: Monday, October 18, 2004 10:01 PM
> > >>To: vwdiesel at vwfans.com
> > >>Subject: Re: [Vwdiesel] Re-ringing a Rabbit --Oil pressure test bad
> > >>
> > >>I need to clean the engine off again to see where the oil is leaking
>from.
> > >>When I could see the oil bubbling around the exhaust flange donut while
>it
> > >>is running my first thought was it was from oil getting by the rings
>into
> > >>the exhaust and thought that may explain the heavy white/gray smoke and
>low
> > >>oil pressure also. But that oil could have come from when I had the
>valve
> > >>cover off?? Wouldn't blow by cause a loss in low oil pressure?  It does
> > >>tango alright. From a high of 70 psi with a cold engine (about 40
>degrees
> > >>outside) to under 10 psi after it warms up for 12 minutes. I did use old
> > >>cut off head bolts with slots filed in them (per archives) to keep the
>head
> > >>gasket aligned. It is a hydraulic head with the extra oil port so the
> > >>gasket can't go on upside down. Torqued it according to Bentley in
>sequence
> > >>I think 30# first pass, 40# second, then with just a breaker bar for the
> > >>final pass, although Bentley calls for an additional 1/2 rev. on each
>bolt
> > >>I could not get that. Maybe 1/4 rev. I was sure the headbolts were going
>to
> > >>twist off. I forgot to mention that the oil pump was replaced last fall
> > >>before all this started also, so it only has 9 or 10k miles on it and
>oil
> > >>pressure was not a problem before I pulled the engine and fixed
>everything
> > >>:)   Pressure at the pump sensor? You mean the sensor at the filter?
> > >>"Don't you give up."  You guys make that pretty hard.
> > >>
> > >>Thanks,
> > >>Bart
> > >>
> > >>
> > >>At 08:21 PM 10/18/2004 -0400, you wrote:
> > >> >It would seem to me that oil pressure, oil leaks and blowby are three
> > >> >completely unrelated items.  Does your oil pressure tango?  How low
>does
> > >> >it go?
> > >> >(warmed up and idling?  Did you use cut off bolts to keep the head
>gasket
> > >> >in place?
> > >> >  How 'bout pressure at the pump sensor?  Don't you give up.
> > >> >Andrew
> > >> >P.S.  I once had an engine Sieze approx. six months after complete
>rebuild.
> > >> >Started it up backed out the driveway, first gear, went to shift into
> > >>second,
> > >> >stalled.  That's wierd she never stalls!  Click, click went the
> > >> >started.  0 to
> > >> >very bad day in 1 second.  Aparently a little piece of aluminum (not a
> > >>diesel
> > >> >VW) from the align bore had finally made it to the crank bearing.
>(Why
> > >> >didn't the pressure washer blow it out of the gallery?) Pinch.  I bet
>if I
> > >> >had been
> > >> >under load I might/might not have felt a hiccup before it clearanced
> > >>itself.
> > >
> > >
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> >
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