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Date:         Thu, 31 Oct 2013 09:22:20 -0500
Reply-To:     Max Wellhouse <dimwittedmoose@CFU.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Max Wellhouse <dimwittedmoose@CFU.NET>
Subject:      No fuel pressure options?
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

.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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