Date: Thu, 31 Oct 2013 11:17:46 -0700
Reply-To: Scott Daniel <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel <scottdaniel@TURBOVANS.COM>
Organization: Cosmic Reminders
Subject: Re: No fuel pressure options?
In-Reply-To: <5272679C.4060409@cfu.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It's not neccessary to remove the screw from the fuel pressure testing
port to bleed the fuel lines.
It's a contiuously circulating fuel system .
Just cycle the key several times to pre-run the fuel pump and fill the
lines with gas.
a glogged return line would make things weird ..though I have never
actually seen that on a vanagon.
Fuel pressure regulator comes to mind.
- which is what determines the fuel pressure of course..
as long as the tank, pump, and lines are doing what they're supposed to do.
On 10/31/2013 7:22 AM, Max Wellhouse wrote:
> .1990 GL 2.1 with 260k + (120k on a boston bob overhaul)
>
> I've been keeping a fuel pressure gauge signal going to my VDO oil
> pressure gauge(toggle switch to change sources) and for several years it
> read right between 29-36psi just like it should. Then about a year ago
> it dropped down to fluctuating to a reading like 17-20 psi. The engine
> still started and ran okay, but within the last couple of weeks, i've
> run the gas tank past empty on two different occasions and had to
> reprime the fuel lines and bleed the air out of the lines from the test
> port screw. That seems to be the onlywlay to restart a totally dry fuel
> system. The second time it ran dry, repeated attempts to bleed the air
> etc. have proven to be unsuccessful i ngetting it to start again
>
> I realize that running the fuel pump with ho fuel for lubrication is not
> good for it, and my spare used pump when installed leaked fuel out of
> the crimp at the top, so that wasn't an optio. Before I spend mega buck
> on a new pump, I;'d like the list's thoughtson where I go rfrom here.
> Could the fuel pressure regulater be causing these issues of no pressure
> at all? Is there a chance there's still vapor lock" in the injection
> lines downstream of the test port preventing fuel from getting to the
> injectors. The engine will cough when ether is briefly shot into the
> air horn, so it's not an ignition or compression issue. i have a known
> good used regulator, but I'd like a bit of guidance before I do too may
> spendy things to get it roling again....and yes, there 5 or 6 gallons in
> the tank right now.
>
> TIA
>
>
> DM&FS
>
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