[urq] Fuel tank vent issues?

[Jon Archibald]

Great info! I just keep learning on this car, even after 15 years. I
suppose the safest course of action will be to replace the soft vent lines
and the little check valve.

Anyone know if there is a special type of vacuum tubing I should use, and
if possible a P/N for the check valve? I would like to do it in one swoop
and the well-intentioned local Import Parts place regularly bones up urq
parts lookups.

Thanks again!
On Feb 25, 2015 7:08 AM, "Peter Coulter" <audionly at gmail.com> wrote:

> Patrick is correct about a plugged vent (or return line) ruining a
> pump.........It gets harder and harder for the pump to flow because of the
> vacuum occurring on the inlet side to the point where it cant overcome the
> vacuum enough to provide the 70lbs plus of pressure needed to run the
> injectors. The pump ends up getting hot and burning up the commutator.
>
> On Wed, Feb 25, 2015 at 7:41 AM, Jon Archibald <talisman05 at gmail.com>
> wrote:
>
>> Thanks for the replies everyone!
>> On Feb 24, 2015 11:39 PM, "Patrick Carlier" <p.carlier at pandora.be> wrote:
>>
>> > Oh and btw , vacuum in the tank will kill a fuel pump in no time .
>> > Sympthom is a typical buzzing/whining  sound coming from the rear .
>> > so make sure you don't drive it  like that .
>> >
>> > Pat
>> > ----- Original Message ----- From: "Jon Archibald" <
>> talisman05 at gmail.com>
>> > To: <urq at audifans.com>
>> > Sent: Wednesday, February 25, 2015 3:27 AM
>> > Subject: [urq] Fuel tank vent issues?
>> >
>> >
>> >  Hi, been driving my car (85 w/3b) to work this week. Today on the way
>> home
>> >> the car simply died at a stoplight. I was able to get it to restart but
>> >> had
>> >> to feather the throttle to keep it on while it ran roughly, similar to
>> >> when
>> >> I had a high pressure fuel line rupture. Made it home at which point it
>> >> then idled fine. Decided to get some fresh gas (it was down to about
>> 1/8)
>> >> and when I opened the gas cap it went POOF! Releasing pressurized air.
>> >> Drove the few miles home and opened the gas cap again, no poof.
>> >>
>> >> Questions:
>> >> 1) Is this likely a failure of the little check valve just over the
>> tank?
>> >> Would pressure buildup in the tank cause the stall? If so why did it
>> come
>> >> back to life after nursing along for 1/4 mile?
>> >>
>> >> 2)I'm assuming dangerous to drive this way until I get it figured out?
>> >>
>> >> I would like to drive the car until the weekend, but have a feeling I
>> >> should park it until I get to the bottom of this.
>> >>
>> >> Any halp appreciated.
>> >>
>> >> -Jon
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>> >>
>> >
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>
>
> --
>  *Leges sine moribus vanae**.*
>