[Vwdiesel] 70 MPG and oil Pressure

[Tad]

Can we please avoid replying to month-old posts (especially when you don't
have much to say)?

On Thu, Jun 9, 2011 at 11:16 PM, Arkady Mirvis <arkadymirvis at gmail.com>wrote:

> 70 MPG? On what vehicle? This is when the car goes downhill and rarely
> uphill?  Ark.
>
> -----Original Message----- From: James Hansen
> Sent: Monday, May 09, 2011 5:31 PM
> To: 'Chris Geiser' ; vwdiesel at vwfans.com
> Subject: Re: [Vwdiesel] Oil Pressure
>
> Nick said it all. Can't be the pressure relief, pump might be worn, and a
> rebuild might net you a few psi, but intermed bearings are the most likely
> culprit.
> Maybe try a stiffer grade of oil and an oil change, and see if that boosts
> your oil pressure enough to make the squeakers not squeak.
> As long as you have low loading at low pressure times, you're good. You
> only
> need 10psi for each 1000 rpm anyway to handle full rated bearing loads, so
> less at mild driving is fine.
>
> We all want one like Nicks, 70mpg at 15psi sounds pretty good with fuel
> priced at what it is...
> Lol
> -j
>
> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
> Behalf Of Chris Geiser
> Sent: May-09-11 9:49 AM
> To: vwdiesel at vwfans.com
> Subject: [Vwdiesel] Oil Pressure
>
> Hi guys (and any gals?);
>
> My 92 Ecodiesel with 380K miles on it:  last week the oil pressure light
> and
> warning buzzer started flashing / sounding while driving.  This is a
> "2-stage" oil pressure warning system.  There is a low (idle) sensor that
> looks for a bare minimum then turns off.  Then there is a "dynamic" sensor
> that looks for oil pressure to be above 1.2 bar when you hit 2000 rpm.
>  It's
> this second dynamic sensor that is causing the warning.
>
> I've trouble shot the warning system / senders and it appears that the
> warning is NOT faulty - I don't think I have the tools to measure oil
> pressure directly, but I've used my electrical tool with two known dynamic
> sensors plus the original sensor and the sensors don't open until well
> above
> 2000 rpm's (again - no way to measure RPM's, but engine is turning pretty
> quick before switch opens).  When I manually ground the wire, the buzzer
> turns off.  So I read that as a working warning system, yes?
>
> I don't see any leaks / puddles, oil level is fine, engine temp is fine
> while running.  I did drive it about 40 minutes on the highway to get it
> home when the buzzer started (after I didn't see anything catastrophic
> under
> the hood), so there's enough oil pressure in the short term to keep it
> running.
>
> So my question to you collective smart people is this:
> Are there any easy / relatively cheap fixes or diagnostics that I should
> consider on this engine?
> Anything that I should check before I decide that the engine is tired and
> pressure issues are because engine wear or intermediate shaft bearing
> doesn't allow it to hold pressure?
> I don't want to put a lot into an engine with that many miles on it, so
> thought I'd ask you guys before looking for a long block or different
> vehicle... but it still started even in the coldest winter days this year,
> so I think compression is still good, although I haven't measured that
> either.
>
> Thanks in advance!!  You guys are the best!!
>
> Chris
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
>
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
>