Rob55
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| posted on 20/7/13 at 07:55 AM |
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How does a roll over vent work?
Can someone explain to me how the roll over vent valve works? I understand how the valve itself works, but whats to stop the fuel going straight out
the fuel neck instead?
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iank
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| posted on 20/7/13 at 08:14 AM |
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The fuel cap has a seal so when it's closed there shouldn't be any significant leak past it even if inverted. Only way for air to get
into the tank should be via the vent valve.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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renetom
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| posted on 20/7/13 at 08:22 AM |
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If you have a decent filler cap it should seal
the one way valve is to let air into the tank
Good luck
 
Tank breather & non return valve
try this £3.95 + P&P
ebay item 170984262812
[Edited on 21/7/13 by renetom]
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Mr C
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| posted on 20/7/13 at 11:22 AM |
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There is a ball arrangement in the valve which act as float cutting the fuel if it is in contact with the valve. Under normal conditions the valve
remains open to vent positive and negative pressure, working to a maximum pressure usually less than 1psi though if this is exceeded the holes are
blocked and the valve will close.
Hope this helps
Girl walks into a bar and asks for a double entendre, so the barman gave her one
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Trollyjack
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| posted on 20/7/13 at 11:35 AM |
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where is the best place to get one from
TrollyJack
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daniel mason
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| posted on 20/7/13 at 11:40 AM |
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merlin do a nice anodised range. not cheap but
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Mr C
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| posted on 20/7/13 at 11:55 AM |
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quote:
Originally posted by daniel mason
merlin do a nice anodised range. not cheap but
Yep £30-£40 CBS do them as well or go the locost rourte and get an electric one off a corsa £10 from the bay.
Girl walks into a bar and asks for a double entendre, so the barman gave her one
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matt_gsxr
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| posted on 20/7/13 at 02:26 PM |
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think automotive were the cheapest when I looked. Comprehensive range too.
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Trollyjack
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| posted on 21/7/13 at 10:47 AM |
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do you know their web address i couldnot find it
TrollyJack
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iank
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| posted on 21/7/13 at 12:25 PM |
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quote:
Originally posted by Trollyjack
do you know their web address i couldnot find it
http://www.thinkauto.com/
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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nickm
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| posted on 22/7/13 at 07:48 PM |
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Cheap method (not sure about IVA)
Not sure about iva rules at the moment but i have used spare fuel hose and copper pipe no valve if the cars turns over the outlet is higher than the
tank (but below it normal way up) if you work around the tank it is impossible for fuel to escape but you still have equal pressures regardless of
whether the car is on its sides or upside down or normal way up.
Nick M
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nickm
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| posted on 22/7/13 at 07:53 PM |
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Sorry Fellas
Thought i was in IVA suppose you racers have to have vent valves.
Nick M
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