Date:         Wed, 13 Aug 2014 12:20:31 -0700
Reply-To:     Neil N <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Neil N <musomuso@GMAIL.COM>
Subject:      Re: Fuel system "vapour lock"
In-Reply-To:  <BAY406-EAS42360D9585CDAD2789BD6FEA0EB0@phx.gbl>
Content-Type: text/plain; charset=UTF-8

Hanks Dennis and Larry.

I could hear some kind of gurgling (cap off) while the engine was running.
I figure the sound was fuel returning but maybe it was boiling fuel? I'll
listen again now that I'm at sea level in cooler temps.

Very interesting to know more of the canister construction. Very helpful.
I'll cut open the old 1981 vanagon high mile canister and post pics. I have
a Jetta canister I can install. It has a nearly identical exterior.

Of note, the fuel pump doesn't make much if any noise right now but has
"always" gotten era all noisy on hot days, higher altitude, workinengine
harder.

This is a Jetta engine in my vanagon but ever since I'd gotten it to run
reliably, it's always exhibited a tendency to run well, or, feel like it
had slightly less power and acceleration. I have to wonder if this has been
due to a failing charcoal canister causing a fuelling issue. The EVAP check
valve is ok.

Neil.


On Wednesday, August 13, 2014, Dennis Haynes <d23haynes57@hotmail.com>
wrote:

> Yes the canister can clog. What usually happens is that the screen on the
> bottom rusts out and the carbon falls into the vent hose and clogs it.
> Another possible problem is that the vent valve is not opening. This is the
> valve in front of the firewall near the air filter. It should open as the
> throttle is opened. You can hear it click. The fuel pump can fail showing
> symptoms when the fuel is warm and a clogged tank or inlet filter can cause
> the fuel to boil at the suction side of the pump. There are reasons VW went
> to the 11mm tank connection and eliminated the filter before the pump.
>
>
> Dennis
>
>
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>
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> From: 'Neil N'
> Sent: ‎Tuesday‎, ‎August‎ ‎12‎, ‎2014 ‎6‎:‎16‎ ‎PM
> To:
>
> --
> 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



-- 
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