Date:         Tue, 27 Mar 2018 12:26:05 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Fuel tank problem solving (Almost)
Comments: To: Cunegonde <cunegonde.van.westfalia@gmail.com>
In-Reply-To:  <9E1E0D9F-4B40-409A-A514-D17C1A9D6DF5@gmail.com>
Content-Type: text/plain; charset="UTF-8"

>
> I put 5 gallons of gas in the tank. Checked for fuel flow at both spigots.
> Yes, fuel from both sides. Tried to start car - I can hear the pump running
> but it doesn’t stop as it should when there’s sufficient fuel pressure. Car
> turns over but won’t start, presumably no fuel at the engine. I assume the
> fuel pump is damaged from running dry for too long?


Pump running or not is commanded by the ECU.  It runs the pump for a couple
seconds when it boots, and any time the ECU is getting timing pulses from
the distributor (air cooled does this differently).


> I detached the pressurized fuel line after the pump. No gush of
> pressurized fuel as I would expect, just a teaspoon or two from the engine
> side of the line.


Teaspoon or so is about what I would expect from opening the test fitting
on the fuel ring at the engine.  It represents the amount that the tubing
and pressure regulator change volume under pressure.

Yrs,
d