Fuel Tank Pressure

[Tom Nestor]

Phil...this is what I posted yesterday regarding the pressurization of the
tank..............

>My guess would be a mis-plumbed vacuum line that controls flow from
charcoal
>cannister. It may be holding the control  valve open all the time. Under
>boost, it would pressurize the tank. Under normal no/low boost, it would
>certainly represent a big hole in the intake.

>Tom Nestor


Tom Nestor

----- Original Message -----
From: Phil Payne <phil at isham-research.freeserve.co.uk>
To: <quattro at audifans.com>
Sent: Wednesday, July 25, 2001 12:04 PM
Subject: Fuel Tank Pressure


> > Blocked vent pipe? FWIR it runs forward under the car - ideal for
picking up
>
> > enough cr*p to block it. Wouldn't expect +ve pressure though - is the
bus
>
> > standing in direct sunlight all the time or perhaps an exhaust leak
warming
>
> > the tank?
>
> > Don't laugh - I've seen it happen to Fords.
>
>
>
> This is MUCH more than tank warming - it's a serious, sustained gale when
I open the filler. It's new, and I'm wondering if the CIS system (charcoal
filter, etc.) has been incorrectly reassembled.
>
>
> --
>  Phil Payne
>  http://www.isham-research.freeserve.co.uk
>  +44 7785 302803
>
>
>
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