Date:         Thu, 27 Mar 2003 14:18:24 -0600
Reply-To:     Stan Wilder <wilden1@JUNO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Stan Wilder <wilden1@JUNO.COM>
Subject:      Re: Oil pump size differences? Boston Bob Customers?
Comments: To: craigoda@COMMUNITYBUILDERS.INFO
Content-Type: text/plain; charset=us-ascii

My main problem was loss of oil pressure when the engine got hot.
---------------- Clip ----------------------
If you got an air cooled HOT is normal.
Notch the rods, fit the pistons looser, install a windage tray, add an
external oil cooler.
The OEM pumps are very good and you just but stock replacement gear sets
for them.
All list vendors can furnish you with larger pumps but on the Type IV
there are clearance problems so you can't get too big ........... in
addition; Don't be surprised if you get the wrong pump.
OEM for the GE and CV Pump number is 021.115.109A. Be sure the vendor
knows it has four bolts out the back side. Price new is about $280.00 it
is a NLA part. El cheap o is $18.00 and you'll need a cover plate. New
Melling is about $75.00 and you'll need a cover plate.
I don't have the address of the tech bulletin for notching rods and
refitting pistons and eliminating base shims but somebody on the list
will.
Them of course if you got a Wasser Boxer forgetabout this post.

Stan Wilder

On Thu, 27 Mar 2003 10:24:20 -0800 Craig Oda
<craigoda@COMMUNITYBUILDERS.INFO> writes:
> Where's a good place to buy the larger oil pumps?  I have an 83
> Westy.
> I'm looking at my main bearings and they don't look so bad
> initially.  I
> haven't checked the clearances on my oil pump, but since I've got
> it
> apart, I'm thinking of putting a larger one in.  My main problem
> was
> loss of oil pressure when the engine got hot.  Still looking for
> the
> source of the problem and hoping that when I put the engine back
> together, I'll be getting normal oil pressure at freeway speed when
> the
> engine is hot.
>
> -- Craig
>
> Stan Wilder wrote:
>
> >I am leaning toward a 28mm to help compensate for the lower oil
> pressure
> >that is characteristic of a rebuilt
> >
> >
> >>motor.  Any opinions?
> >>
> >>
> >--------------------- Clip ------------------
> >I'm running Type IV air cooled engines with the stock oil pumps.
> >I get 80 Psi + on cranking cold, 14-21 on full temp idle 800/900
> rpms, 35
> >psi at 2500 rpms, 50/60 psi at 3300 rpms full temp of 212/220 (F).
> Oil is
> >15/50 Mobil 1.
> >It hasn't changed in the 20K I've put on the engine.
> >
> >Stan Wilder
> >
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>
> --
> ------
> Craig Oda's Personal Email
> Living and Working in the SF Bay Area
> Automobiles: '83 VW Westy (watercooled); '77 VW Bay Window
> Other Info: http://communitybuilders.info/~craigoda/
>
>

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