I reference the manual by Tom Wilson. How To Rebuild Your Volkswagen Air
Cooled Engine.
From the diagrams and descriptions it appears that the blocking of the
oil cooler will just bypass the oil into the sump(back to the pan) when
the pressure reaches the trigger point for your relief valve. All the
while maintaining the pressure to your oil galleries in your engine.
I will readily accept correction on this since I don't know a stinking
thing about WaserBoxers other than I don't want one.

Stan Wilder
83 Air Cooled Westfalia

On Fri, 21 Sep 2001 20:37:09 -0400 Gary McEachern <glmce@HOTMAIL.COM>
writes:
> I recently bought a syncro that has this oil cooler bypassed. The PO
> did it!
> Does the oil cooler have a significany effect on oil pressure when
> the
> engine is at normal operating temperature?
>
> Gary
>
> Gary McEachern, Reading Ma.
> '90 Westy
> '87GL Wolfy Weekender SubaVanagon
> '87 Syncro
> '91 Subaru Legacy Sedan
> '93 Subaru Legacy Wagon
> '76 Camper
> '75 Spitfire
>
>
>
> ----Original Message Follows----
> From: Dennis Haynes <dhaynes@OPTONLINE.NET>
> Reply-To: Dennis Haynes <dhaynes@OPTONLINE.NET>
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: [VANAGON] Sandwich oil cooler adapter question
> Date: Fri, 21 Sep 2001 06:43:19 -0400
>
> Those are not check valves. they are bypass valves which only get
> used if
> the oil filter or cooler become blocked.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On
> Behalf
> Of Stan Wilder
> Sent: Thursday, September 20, 2001 8:09 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Sandwich oil cooler adapter question
>
>
> I just finally got around to installing the axillary oil cooler on
> my  83
> Westfalia Air Cooled.
> I installed the additional cooler by using an Empi sandwich type
> adapter
> that goes between the oil filter and the original filter mount.
> I've got a question:
> I noticed that the sandwich adapter and the original oil filter
> mount
> both have check valves in them. Does this dual check valve scenario
> present any problems?.
> Seems to me that they would hardly ever even get into sync except at
> high
> pressure.
>
> Stan Wilder
> 83 Air cooled Westfalia
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