2b_pablo
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| posted on 27/2/08 at 03:21 PM |
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wtd: fuel tank breather
as above, no idea where to get one from
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if it aint broke... pull it off and upgrade it!
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DarrenW
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| posted on 27/2/08 at 03:53 PM |
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Do you just have a short pipe out of the tank?
If so same as mine - i got a one way valve from aquarium place and piped that in high up above tank. Plastic jobbie, maybe £2 max. (In aquariums they
are used when you fit air stones so the water doesnt siphon back from the tank if you have a power cut).
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nitram38
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| posted on 27/2/08 at 03:54 PM |
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Try thinkautomotive.
Make sure that it is a two way breather or you will get a pressurized tank, especially if it is fuel injection with a return pipe.
Get one that will close if inverted.
[Edited on 27/2/2008 by nitram38]
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2b_pablo
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| posted on 27/2/08 at 03:55 PM |
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mine has a small pipe coming out of the filler pipe but has a bolt in it. M8 kinda size.
do you get a strong smell of petrol using a breather?
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if it aint broke... pull it off and upgrade it!
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2b_pablo
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| posted on 27/2/08 at 03:57 PM |
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quote:
Originally posted by nitram38
Try thinkautomotive.
Make sure that it is a two way breather or you will get a pressurized tank, especially if it is fuel injection with a return pipe.
Get one that will close if inverted.
[Edited on 27/2/2008 by nitram38]
car is carbbed but might go injection later on. no return pipe or swirl pot.
works fine as is but Im guessing it should really have a breather.
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if it aint broke... pull it off and upgrade it!
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DarrenW
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| posted on 27/2/08 at 04:00 PM |
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quote:
Originally posted by 2b_pablo
mine has a small pipe coming out of the filler pipe but has a bolt in it. M8 kinda size.
do you get a strong smell of petrol using a breather?
No smells whatsoever from mine. i think filler cap is vented as well so the aquarium bit probs has limited function.
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02GF74
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| posted on 27/2/08 at 04:16 PM |
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quote:
Originally posted by DarrenW
I got a one way valve from aquarium place and piped that in high up above tank. Plastic jobbie, maybe £2 max.
has this resisted petrol?
I mean to make one using some brass tubing, a spring from a ballpoint pen and a small ball bearing as I can quite easily over fill the tank resulting
in petrol pishing out of the breather!! 
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RazMan
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| posted on 27/2/08 at 05:01 PM |
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If your cap is vented then you don't need a tank breather.
As mentioned, you should really go for a two way valve which can be quite pricey. Alternatively you can use a long tube which loops around the bottom
of the tank and exits as high as possible. That will prevent spillages in a roll situation and allows vapour to escape but air to enter the tank.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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