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Re: Fuel Out of Vent Tube

To: "William H. Ball" <bball@staffnet.com>
Subject: Re: Fuel Out of Vent Tube
From: mmcewen@gpu.srv.ualberta.ca (John McEwen)
Date: Tue, 8 Apr 1997 12:24:07 -0500
Hi Bill:

Give the area around the needle valves a few sharp raps with a plastic
hammer or anything which won't damage the metal of the float bowls.  This
should clear the dirt in the jet and allow you to carry on.  Do you have a
proper fuel filter fitted?  This flooding is one of the first signs of rust
particles and/or dirt in the fuel.  They lodge in the jet and prevent the
needle from seating.  If you can't cure the problem temporarily by rapping
on the bowls you will need to diassemble and clean.

John McEwen






>On Mon, 7 Apr 1997, Craig Wiper wrote:
>
>> At 04:21 PM 4/7/97 -0400, bball@staffnet.com wrote:
>> >When I tried restarting the engine, i could hear the fuel pump clicking
>> >away before engaging the starter... the engine would then not start after
>> >engaging the starter... i then smelled gas, quickly turned off the engine,
>> >and looked under the car... fuel was coming out of the vent tube
>> >(connected to the running-on-control valve, which is connected to the
>> >charcoal adsorption canister) and pouring onto the floor!
>> >
>> >i noticed a vapor line from the twin-HIF carbs was disconnected and
>> >reconnected it... i have not tried restarting the car, as it appears that
>> >there is definitely gas in the adsorption canister...
>> >
>> >any ideas? i'd appreciate anything...
>> >
>> >p.s. i recall a message from a fellow several months back who had his
>> >canister fill up with gas, but can't recall the problem or the fix...
>> >
>> Replace your needle valves with Grose Jets. Mine hasn't leaked that way
>> since I replaced them years ago. Also, you might want to drill a very small
>> hole (1/16") or so in your gas cap. Often, when my car would be sitting in
>> the sun all day on a hot day, the fuel tank would build up pressure and
>> force gas through the vent tube at the tank all the way up to the charcoal
>> canister and the fuel would spill out the anti-run-on valve. I solved this
>> by doing just that; drilling a small hole in the seal of the cap to allow
>> the fuel tank pressure to stay equalized no matter how hot it got. Just my
>> 2c worth.
>>
>> Craig Wiper
>> craigw@sonic.net
>> http://www.sonic.net/~craigw
>>
>thanks craig... but how do i rectify the current problem? are you saying
>that it's the jets in the carbs? so i have to disassemble the carbs to
>clean the jets? and it isn't the fuel pump?
>
>billy ball



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