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Date:         Thu, 31 Jan 2013 13:20:47 -0800
Reply-To:     Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject:      Re: Does this look like a fuel leak?
Comments: To: John Meeks <vanagon@GMAIL.COM>
In-Reply-To:  <CAMuoOU7BLAoKEe52ap3HtKZQjYv0usd+fFLm6fsUYMJ9DK8y9Q@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

the fuel system should stay pressurized after pre-running the fuel pump for a few seconds.. Just pre-run the fuel pump by tuturning in the key a few times.. a check valve in the fuel pump maintains pressure I believe.

ifyou have a fuel pressure guage on it, and pre-run thepump say 3 times.. it should read 32 psi or so ...and maintain that pressure quite a long time.

leaving the key on after pre-running the fuel pump makes no difference of course. scott

On 1/31/2013 7:53 AM, John Meeks wrote: > Peter ~ > > FYI the fuel pump only runs for a few seconds with the key in the on > position. Once the engine turns over it will run continuously. > > It's possible that the fuel line clamps weren't crimped tight enough. Check > to see if they move on the rail nipples. That crimp tool is good to have if > you're going to stay with the Oetiker type clamps. > > John Meeks > '91 Vanagon MV Phoenix > Northern Michigan > > Vanagon Rescue Squad <http://www.vanagonauts.com/Vanagon-Rescue-Squad74.htm> > Android and iOS apps > > www.vanagonauts.com > > > > On Thu, Jan 31, 2013 at 8:40 AM, Peter Krogh <peter@peterkrogh.com> wrote: > >> I've noticed the smell of gas in my engine compartment, and it looks like >> I may have multiple fuel leaks back there. I suppose it's also possible >> that what looks like fuel stains could have come from some penetrating >> solvent used in the fuel line repair over the summer. Or perhaps the stains >> have simply been lingering around since the repairs over the summer. >> Wondering the wisdom of the list. >> >> Here's a movie showing what I see: >> https://vimeo.com/58572336 >> >> Background >> The van sat in the driveway for several years undriven. Last summer I >> hired a work-from-his-house vanagon-only mechanic to do some basic repairs >> - brake lines, brakes, shocks, gas tank breather, and fuel lines as well as >> a few bushings. You can see the new fuel lines and the crimp-on connectors >> in the video. >> >> There have been a number of other issues I'm slowly working through on my >> own as best I can. >> >> Next step >> After 28 years, I really don't want to lose the van to a foreseeable >> engine fire. Does this look like a fuel leak? I can't really see how the >> leak could be happening - lines are new, connectors look tight (as best I >> can tell). Do the rails ever crack and leak? >> >> Should I spray down the engine compartment with engine cleaner and see if >> the staining comes back? Should I stop driving it immediately? >> >> I tried leaving the car ignition turned on (car not running) for a half >> hour or so to see if any fuel seemed to leak further, but could not find >> evidence of that. (I assume that the fuel lines are pressurized when the >> ignition is turned on.) >> >> I've been driving the car a couple times a week, nothing longer than 20 >> miles for the last 5 months. At this point, I need to put the car into >> local service on something like a daily basis, so I'd like to resolve the >> safety issues ASAP. >> >> The guy who did the work is 60 miles away, so driving to have him look at >> it only works if this is not a dangerous condition. I have sent him a link >> as well, but not yet heard back. >> >> Thanks for any insight. >> Peter


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