Date: Mon, 18 Jun 2001 21:04:16 -0400
Reply-To: 72510.1173@COMPUSERVE.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Helen Fahy <72510.1173@COMPUSERVE.COM>
Subject: Re: Oil Level Again
Content-Type: text/plain; charset="iso-8859-1"
Hi Dana,
I did not know about the bypass details on the two filter types. That is
good info to know, thanks.
The only reason I can see for bypassing the filter is to guarantee that a
clogged filter will not prevent oil from getting to the engine. A
completely clogged filter would have the oil pump relieving itself against
the pressure relief valve, about 65 psi, with no oil going to the engine.
Even dirty oil would be better than no oil!
The port that the oil pressure gage is tapped to is off of the camshaft, so
I know that the engine has oil and pressure.
Probably the relief on the oil filter is to keep it in one piece, perhaps
the diesel filter is a thicker wall. Anecdotal evidence is always suspect,
but I have been doing this since I redid the engine 20K miles ago and I have
no leakage. Well almost none, the motor has over 180k on the case.
Regards,
Joe Fahy
----- Original Message -----
From: "Dana Morphew" <kadm@PUGETSOUND.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, June 18, 2001 7:56 PM
Subject: Re: Oil Level Again
>
> The Mann filter for the Wasserboxer equipped Vanagon has a bypass valve
> which lets the oil bypass the filter element at pressures above 1.5
> bar. The Mann diesel filter doesn't let the oil bypass the filter until
> the oil pressure reaches 2.5 bar. Critical? I don't know. A "bar" is
> between 14 and 15 lbs. of pressure.
>
> -Dana-
>
> Helen Fahy wrote:
> >
> > Hi Jay,
> >
> > I use 4 qts and add another 10oz for the slightly larger diesel oil
filter.
> > The 10 oz was a measurement I did on a std and diesel oil filter. I
filled
> > both up with oil, measuring the quantity prior to filling, the
difference
> > was 10 oz.. I also fill the filter prior to installing. Actually it is
not
> > completely full, I add oil to the new filter until it begins to spill
out at
> > the angle that it must be held at to install it on the engine.
> ...
> > Currently I am using Shell Rotella T non-synthetic 10w40. This is the
> > diesel service rated oil. Oil pressure is typically (engine rpm/1000)
+(3
> > to 5) psi, i.e. 3500 rpm:38-40psi. The oil temp stays about 200-210.
> >
> > Joe Fahy
> >
> > ----- Original Message -----
> > From: "Jay L Snyder" <Jay.L.Snyder@USA.DUPONT.COM>
> > To: <vanagon@GERRY.VANAGON.COM>
> > Sent: Monday, June 18, 2001 3:02 PM
> > Subject: Oil Level Again
> >
> > > Anyone out there
> > > running the larger diesel filter with the factory amount of oil (more
in
> > > the filter, less in the case)?
> > > Jay
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