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moorhead · Guest

hi , ive ran out of petrol on my 15ti sud . the problem is i can't seem seem to get the petrol back up to the engine . even a prime of petrol to the engine does,nt seem to work . any ideas ? moorhead. Crying or Very sad

tvatavuk · Posted: Sat Jun 04, 2005 12:21 pm Post subject:

Don't know how fule pipes go in Sud, but if you can fill it up from carb pipes that go to pump and then to tank you might have luck.

Except that you can try with filling tank all way up, and parking od very steep hill?
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Tino Vatavuk
Little black dress which replaced Alfa Romeo 33 S 16v Permanent 4 GMo

Guest · Posted: Sat Jun 04, 2005 8:08 pm Post subject:

I think that the suggestion of manually filling the float chamber with fuel might do the trick. The fuel has to be sucked through the fuel lines, which can only really be achieved by letting the engine turn over (preferably by itself), as it is the vacuum in the combustion chamber that draws the fuel in. Correct?

moorhead · Guest

[yes guy's thanks for the info , most of what you said ive allready done. it may because i fitted the wrong gauge petrol pipe. could make the vacuum faulty. i will try a new one . CHEERS MOORHEAD>quote="tvatavuk"]Don't know how fule pipes go in Sud, but if you can fill it up from carb pipes that go to pump and then to tank you might have luck.

Except that you can try with filling tank all way up, and parking od very steep hill?[/quote]

tvatavuk · Posted: Mon Jun 06, 2005 5:52 pm Post subject:

If you don't have problem with tasting fuel gases, you could remove pipe that goes from pump to tank, and start suction action.

Problem is that fuel is acctualy driven into pump by cohesion? intermolecular force inside liquid and when you run out of petrol gas enter into tube and there is no chain of fuel molecules that pull each other.

So you're left with choices of filling it up all the way, or sucking you lounges out by sucking it up. AFAIK Petrol gases can cause cancer.

If it was I.E. fuel pump you would be left with a choice that it is broken because of overheating(it uses fuel to cool itself), but never heard of mechanic pump failing because of that.
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Tino Vatavuk
Little black dress which replaced Alfa Romeo 33 S 16v Permanent 4 GMo

Eddie W · Posted: Mon Jun 06, 2005 11:13 pm Post subject:

Sounds a bit like a pump problem to me. Some of our 33s sit for months and will still fire up eventually by turning over and vigorous use of the accel. pump jets.
Eddie
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Eddie W · Posted: Mon Jun 06, 2005 11:18 pm Post subject:

Sounds a bit like a pump problem to me. Some of our 33s sit for months and will still fire up eventually by turning over and vigorous use of the accel. pump jets. Dis connect the supply line to the carbs and with the end in a suitable container, have some body turn the motor over. That should tell you about the pump. If you are still in doubt about the suction side then run a hose from that side to a can of petrol.
Eddie
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Guest · Posted: Mon Jun 06, 2005 11:36 pm Post subject:

hi
sound like pump problem or fuel lines
you could try a little fuel in made up tank in engine bay take of fuel pipe from main tank to pump conect your pipe from tank /chamber ad a little fuel in tank/ chamber and see if this is sucked through pump i had similar problem on my 1.5ti and it was a hole in fuel line and was sucking in air
good luck
dave