Date:         Wed, 5 Mar 2014 08:26:23 -0800
Reply-To:     Neil N <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Neil N <musomuso@GMAIL.COM>
Subject:      Re: vanagon Digest - 3 Mar 2014 to 4 Mar 2014 (#2014-134)
Comments: To: Stephen Henderson <stevehendo34@gmail.com>
In-Reply-To:  <CAMa7RxGWyUSS3AEUXz4chpC3gyVhrwGXCUY0P6ZNFdjFWY1qqw@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

Hi Stephen. Thanks for the tips and links.

I replaced the fuel pump. Using a pressure gauge and clamps, I tested
running-residual pressure in the same manner as I did with the old
pump.

The used replacement pump holds residual pressure engine cold, up to
temp, and after it cools down for 45 min. - 1 hour. If I repeatedly
bleed the fuel system at the gauge, then prime system turning key to
ign. on or with my fuel relay bypass switch, system primes as normal,
holds pressure, and starts normally.

AFAIK, the pump was at fault but I have no idea why it would cause a
consistent residual pressure loss under certain conditions.

Neil.

On 3/5/14, Stephen Henderson <stevehendo34@gmail.com> wrote:

> Generally easy starting when cold and hard when warm can be a couple of
> things.

> All that being said you probably have a leak in you fuel system like
> o-ring, stuck open injector hoses  return or
> ! Fuel pressure regulator do test bellow !
> http://www.ehow.com/how_7300305_test-fuel-injection-pressure-regulator.html
>
> I don't think it is your fuel pump if it initially comes up yo
> pressure when running.
>


--
Neil n

Blog: tubaneil.blogspot.ca

'88 Westy http://tinyurl.com/c8rlw6p

'81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/

Vanagon VAG *Gas* inline-VR Engine Swap Group:

http://tinyurl.com/d7gd5ej