mikeb
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| posted on 26/2/18 at 02:18 PM |
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Roll over/Fuel Breather valve
Can I use one of these as a roll over valve for my fuel tank
https://www.ebay.co.uk/itm/ALUMINIUM-NON-RETURN-CHECK-ONE-WAY-VALVE-ROLLOVER-BREATHER-FUEL-SYSTEM/162836920435?epid=1639988657&hash=item25e9d63873
:m:mhQvErCel4FlkIBLBwqRDpA
assume if I just mount it vertically with the arrow pointing downwards it would work?
[Edited on 26/2/18 by mikeb]
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Mr Whippy
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| posted on 26/2/18 at 07:46 PM |
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Hmm now I had one of these plumbed into my landys fuel line just in front of the carb in a bid to stop the fuel running back to the tank. Not actually
the problem though. Anyway its just a metal plate, spring loaded and not a ball or anything that would care about which way round it was. I took mine
out but apart from the question of how good the presumed O ring is it would probably be just fine. The arrow is just the flow direction. Got mine from
autosave, for less than a tenner.
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adithorp
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| posted on 26/2/18 at 08:25 PM |
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Not really as that's only a one way valve. You need a 2 way breather valve that allows air in and vapour out but stops fuel flow in the case of
a roll over. Fuel vapour expansion is an issue not just due to heat but also caused by flow of fuel from return line. I've seen a tank bulging
due to a one way valve.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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Badger_McLetcher
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| posted on 26/2/18 at 08:59 PM |
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I've used a Corsa breather valve on mine, wired into the same circuit as the fuel pump. That way it's open when I need it, in the event of
a crash the inertia switch cuts it all out.
https://www.ebay.co.uk/itm/VAUXHALL-CORSA-C-1-0-1-2-FUEL-TANK-VENT-VALVE-INLET-MANIFOLD-VALE-2000-2006/401496672107?epid=1926294488&hash=item5d7b1
1076b:g:e1kAAOxylpNTVoB~
If disfunction is a function, then I must be some kind of genius.
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mark chandler
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| posted on 26/2/18 at 09:29 PM |
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Brake servo one way valve, the fuel fumes rot most standard valves and these are pennies.
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Charlie_Zetec
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| posted on 26/2/18 at 11:25 PM |
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One of
these?
Artificial intelligence is no match for natural stupidity!
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ste
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| posted on 26/2/18 at 11:29 PM |
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This is the correct valve for the job.
My IVA man asked me about the roll over valve and wanted to make sure it wasn't a one-way valve.
the black part sits inside the tank and has a ball inside. It allows air to breathe in and out until it's turned upside down and the ball shuts
the valve off
Fuel Roll Over Valve 8mm Fuel Oil Water
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adithorp
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| posted on 27/2/18 at 03:38 PM |
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After having a couple of cheaper inline ones fail a bit the bullet and got one of these (last one on page)...
https://www.thinkauto.com/cgi-bin/sh000001.pl?WD=breather%20valve&PN=On_line_shop_Tank_breather_valves_268%2ehtml#aTRL7
Not cheap but still working.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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