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Re: [T3] STill geting air in fuel lines.


On Thu, 29 Nov 2001 18:15:03 -0600, Russ Wolfe wrote:

>On Wednesday 28 November 2001 19:51, Mark Healey wrote:
>> 71 manual FI square.
>> I'm still getting air in my fuel line.
>> Symptoms:
>>
>> When I run the fuel pump staticaly I hear a high pitched squeal coming
>> from the pressure regulator.  It gets higher and then stops.  If I try
>> to start the car before the squeal stops it won't
>>
>> All the fuel lines at the rear end of the car are new.
>>
>> The two steel lines runing to the front of the car are OK, judging
>> from the amount of gas that ran out while I swapped the old line with
>> the new.
>>
>> There is no noticible gas leaking.  At least I don't smell any.
>>
>> It's running lean.  Which may be an entirely seperate problem.
>>
>What you are getting is not air in the lines, but gas vapor. When you park
>the car and the engine is hot, the gas that is in the lines at the engine
>actually vaporizes. then when you go to start the car the next time, you have
>to push that fuel vapor through the regulator before you can build pressure
>in the system.
>If you are running lean, this may be adding to the problem, as the engine
>will tend to run hotter.

I should have mentioned that this only happens when it has been
sitting for a while.  Could it be that what you describe is what is
happening and when it cools it creates some negative pressure, pulling
air in?


Mark Healey
71 FI auto square
71 FI manual square
marksvw@healeyonline.com


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