[Vwdiesel] More Quantum Questions?

[mark shepherd]

Welcome back Bill ;o)

1) Are yoou running diesel, rather than cannola etc?
2) The Quantum ran you say... Did it run for 5 minutes, or for a distance of 
a few miles? Stop and start?
3) Did you then leave it for a few days or just overnight before it stopped 
'starting'?
4) Why did you install an electric pump inline? Did you install it just to 
help the draw up of fuel before trying to restart, or after pulling your 
hair out after it failed to start?
5) Bubbles are a problem, as they affect the internal pressures of the 
injection pump... Did they appear after electric pump install?

What I would do?...
1) Remove electric pump. I see no reason why a pump would lift fuel today , 
and not 'tomorrow'....
2) disconnect supply and return lines at the bulkhead where they are about 
to head back to the tank.
3) Get a jug of diesel and dip the  supply line into it. Can you find a 
plastic syringe, [50cc would be perfect] and attach it to the return line 
coming from the pump raise it above the pump and suck the fuel through. 
Quickly remove and then resuck if no diesel comes out on first run.
4) When diesel has come through, drop line into your diesel bucket and 
remove syringe.
5) Start vehicle. and look for bubbles in supply line to pump. If present 
then screw on top of fuel filter may be leaking, or even water drain.

Come back with some answers please

Mark

----- Original Message ----- 
From: "William J Toensing" <toensing at wildblue.net>
To: <vwdiesel at vwfans.com>
Sent: Sunday, June 28, 2009 12:18 AM
Subject: [Vwdiesel] More Quantum Questions?


>
> The Quantum is on strike again, won't run. After I put the rebuilt IP on, 
> it ran like a charm-once. Wouldn't start since. No adjusting of the IP 
> timming since it ran or anything else except I installed an electric fuel 
> pump between the filter & the IP inlet. Saw all kinds of air & bubbles run 
> thru the intake line & then the return line, then just diesel fuel. Still 
> wouldn't start. Cracked all the injector lines at the injectors, no signs 
> of any fuel so appears not getting any fuel to the injectors. Does this 
> call for another tow start? Anything else I should do?
> Bill Toensing, Nevada City, CA
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