On 5 Jul 2004 at 8:47, Robert Lilley <RClilleyjr@COX.NET> wrote: > The reason there is no fuel filter before the pump is because VW put a fine mesh > filter in the fuel tank to keep particles out of the pump. The after market > fuel tanks DO NOT have one, so putting a pre-pump filter is advisable. > > Maybe VW found that when the small filter before the pump clogged, that > damage the fuel pump would happen, so they designed a system to prevent that > from happening. I think you hit the nail on the head here. During one of my many crazed attempts to solve my Vanagon Syndrome*, I pulled the tank from my '88 Westy, convinced I had a fuel starvation issue. What I found amazed me for a vehicle with 380k kms: the tank inside was pristine, without a spec of rust and very little dirt; and the mesh screen was so large that I can't imagine fuel starvation being an issue without a lot of crud in there. Good design? Seems pretty good to me. *the VS was eventually traced to bad solder joints in the ECU, reheated a soldered, and still good a year later :-)
-- Shawn Wright http://Zuiko.sls.bc.ca/swright ~This message sent by Pegasus Mail, the safe E-Mail alternative~ "Friends don't let friends use Outlook" |
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