Hi

When fitting a non return valve on a tank breather, do you need either a 1 way (lets air in only) or can you get a 2 way one?

Which is best and where can I get one from?

Cheers chaps

two way, thinkautomotive

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Originally posted by prawnabie
Hi

When fitting a non return valve on a tank breather, do you need either a 1 way (lets air in only) or can you get a 2 way one?

Which is best and where can I get one from?

Cheers chaps

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You should have a 2way one if you have a return to the tank.

I bought mine direct from Newton Equimpent

http://www.newton-equipment.com/inline_valves.html

I used the TPV8 valve, seems to work well.

The one way valves are OK but can allow a significant amount of pressure to build up in the tank.

quote:

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Originally posted by nitram38
two way, thinkautomotive

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quote:

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Originally posted by Bigheppy


? isnt a two way one an open pipe

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quote:

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Originally posted by nitram38
two way, thinkautomotive

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too slow again!

Nah its some gadget that allows air fo escape but not fuel lol. Ive looked on think automotive but it looks like they only do bolt in on weld in ones. I need one that fits onto a hose!


Cheers

quote:

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Originally posted by RichardK

quote:

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Originally posted by nitram38
two way, thinkautomotive

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Why a 2 way valve on a crossflow? thought 2 ways were only required on fuel injected setups with a tank return.

Would a cheapo 1 way do here?

Cheers

Rich

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This is what I used but its only 1 way but there again I don't have a return as I have a pinto on carbs LINKY

Cheers

Rich

You need to let air into the tank and allow expansion on hot days even if you don't have a return pipe.
Thinkauto will make you up a valve to go into a pipe.

quote:

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Originally posted by nitram38
You need to let air into the tank and allow expansion on hot days even if you don't have a return pipe.
Thinkauto will make you up a valve to go into a pipe.

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I will be making my own tank, eventually, I kept a valve from the original tank, it was affixed by a grommet only to the tank, I think it has the function to let air in and not let fuel out.
Do you think itīs a good idea to install?
Or shoul I get a proper valve (Not locost?)
Thanks and sorry for the hijack
AA

If it helps, Car Builder Solutions sells these
Give them a ring on 01580 891309, they're very helpful.

quote:

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Originally posted by flak monkey
You should have a 2way one if you have a return to the tank.

I bought mine direct from Newton Equimpent

http://www.newton-equipment.com/inline_valves.html

I used the TPV8 valve, seems to work well.

The one way valves are OK but can allow a significant amount of pressure to build up in the tank.

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I think I emailed them, but yes you can call them direct. The valves are about Ģ45 from memory.

The ones thinkauto sell are the Newton ones anyway. So you might as well buy direct.

Cheers,
David

Try Speedflow.

http://www.speedflowshop.co.uk/valves-check-breather-pressure-realease--onoff-173-c.asp

Both one way and dual valves available.

Cheers,
Nev.

Cheers for the help guys, I wil have a mooch!