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Date:         Mon, 16 Jul 2007 12:59:30 -0700
Reply-To:     Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Subject:      Re: No Start 83.5: Fuel pump test?
Comments: To: Don Spence <dkspence@telus.net>
In-Reply-To:  <E35C0758-4C3B-4B40-8C96-BCA09A9285FB@telus.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I think it only pumps when cranking - there's no signal to the pump otherwise. It should be pouring out.

A pressure gauge would be best Don.

Have you tried blowing back through the lines? Say pump to tank and motor to pump?

On 7/16/07, Don Spence <dkspence@telus.net> wrote: > > 83.5 wbx, > > New ignition system, (yes I have spark), fires when I inject fuel > into intake plenum. Does not fire otherwise. I have replaced the fuel > filter, fuel pressure regulator (had a spare so why not), cleaned the > injectors, checked the injector clips with a noid (yes good pulses on > all four) and I'm thinking that the pump is defective in it's > pressure output. ( As in not enough pressure to squirt fuel under > compression) The pump runs for 3 seconds when the ignition is turned > on but with either an injector bar hose disconnected or the pressure > release bolt removed I get no squirting fuel back at the engine . > > Should this "open system" squirt fuel out of either or both of these > openings? > > Is my thinking logical? How (sequence) should I check the fuel pump > function. ( I don't have a pressure gauge though could acquire one if > necessary. > TIA > Don ( the frustrated one) >

-- Jake 1984 Vanagon GL 1986 Westy Weekender "Dixie" www.crescentbeachguitar.com


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