Date:         Thu, 16 Jan 2003 10:54:22 -0500
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: ARG! HELP! fuel pump problems
Comments: To: Greg Marshall <earthboy@rogers.com>
In-Reply-To:  <3E26D344.F2EF7007@rogers.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 10:44 AM 1/16/2003, Greg Marshall wrote:
>I have the metal filter after the tank,

Dunno whether a clog there would make the pump whine -- if so it would be
from overload and not cavitation.  Dunno whether the pump could burst the
filter element if it were seriously clogged.

>and the fuel tank is brand new, so I
>wouldn't think that contamination would be the problem.

Who knows what evil lurks in the hearts of new tanks...

>   One thing I did notice
>when changing the lines, was that the plastic coupler that stepe up the line
>size to the pump had a small crimp in it.  I didn't think it was a big deal.

Doubt if it is -- it would have caused trouble from the start if so.

>Could this be restricting flow to the pump?  If so, where can I get one of
>these?

Sorry not to be more helpful -- but you either have an input clog, an
output clog, or a bad pump.  You should be able to isolate which it
is...any chance of ice in the system?

Ah -- faint possibility that fuel pressure regulator is jammed -- pump
would be working hard, mixture might very well go rich enough to affect
performance.  O2 sensor will show constant > 0.5v, ought to smell rich at
that point, and possibly even a glowing cat...

david

--
David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"