The Cal-look Lounge
Welcome, Guest. Please login or register.
Did you miss your activation email?
November 01, 2024, 00:03:42 am

Login with username, password and session length
Thank you for your support!
Search:     Advanced search
351145 Posts in 28649 Topics by 6850 Members
Latest Member: Bugstar70_new
* Home This Year's European Top 20 lists All Time European Top 20 lists Search Login Register
+  The Cal-look Lounge
|-+  Cal-look/High Performance
| |-+  Pure racing
| | |-+  Fuel tank breather/roll over valve
« previous next »
Pages: [1] Print
Author Topic: Fuel tank breather/roll over valve  (Read 6270 times)
leec
Hero Member
*****
Posts: 2599


« on: October 02, 2014, 20:34:25 pm »

My oval got pulled up at scrutineering for having a fuel cap that would leaked If the worst happened and the car rolled over.
I have sealed the cap as suggested but will obviously the tank will need a new breather. What do you guys run, I've seen braided linefrom the filler neck? Also heard something about a one way valve?

Any advice would be awesome, running out of time for drag day!!
Lee
« Last Edit: October 07, 2014, 18:00:03 pm by leec » Logged
Andy Sykes
Hero Member
*****
Posts: 1203



« Reply #1 on: October 02, 2014, 21:01:46 pm »

the one way valves work but you may still need to fit a coiled tube, as they have know way of knowing if the valve works so you may as well just fit a tube

cheers andy 
Logged

I love the haters they make me famous.

im building this not just putting parts together, they are two totally different things

Your only here once turn it up to 11
Sepi
Full Member
***
Posts: 102


« Reply #2 on: October 02, 2014, 21:07:29 pm »

I did this kind of system to my -59. It has the one way valve and opened filter.

Logged
richie
Hero Member
*****
Posts: 5687



« Reply #3 on: October 02, 2014, 21:09:12 pm »

Jo's car has a 2 piece bolt on roll over valve,

http://www.jegs.com/i/JAZ-Products/547/834-006-11/10002/-1?parentProductId=751554

 just drill a hole in the filler neck, flatten that area slightly so it will seal and bolt it on, then some -6 hose to exit out underneath, on the old car I welded a -8 fitting on the tank filler neck and used the 1 piece roll over valve that then bolts on to that.

http://www.jegs.com/i/JAZ-Products/547/834-208-06/10002/-1?parentProductId=751554

That's what I use on most other stuff now, I think I got a couple of them[ -8] in stock if you are stuck but you need either need a tank fitting like this

http://www.jegs.com/i/JAZ-Products/547/832-108-11/10002/-1?parentProductId=747212

or to have the tank out to get a fitting welded on

cheers Richie
Logged

Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
leec
Hero Member
*****
Posts: 2599


« Reply #4 on: October 02, 2014, 21:21:00 pm »

Great, thank you guys.

Richie, the 2 piece jegs valve, do you have them in stock?
Will they act as a breather too?
I assume ou just run hose from the fitting with a loop in it to vent under the car?
Lee

Ps, pics would help my tiny mind!
« Last Edit: October 02, 2014, 21:31:20 pm by leec » Logged
spanners
Sr. Member
****
Posts: 286



« Reply #5 on: October 02, 2014, 22:12:44 pm »

Great, thank you guys.

Richie, the 2 piece jegs valve, do you have them in stock?
Will they act as a breather too?
I assume ou just run hose from the fitting with a loop in it to vent under the car?
Lee

Ps, pics would help my tiny mind!

MSA regs require a "roll over valve"  in breather lines, I run double breathers with two valves venting into a breather tank, they are mounted vertically for correct function, I fear fire, more so when upside down and seeing stars, so no open tank breathers, running them into a catch/breather tank is a scruteneers delight also.
Logged

Best regards, spanners.
richie
Hero Member
*****
Posts: 5687



« Reply #6 on: October 03, 2014, 08:47:33 am »

Great, thank you guys.

Richie, the 2 piece jegs valve, do you have them in stock?
Will they act as a breather too?
I assume ou just run hose from the fitting with a loop in it to vent under the car?
Lee

Ps, pics would help my tiny mind!

Haven't got the 2 pieces one sorry, that was a one off as tank was powder coated, yes its a vent until fuel pushes against it and then closes it off, you can do as Spanners says and run hose into a catch can or just vent outside the by the beam
Logged

Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
richie
Hero Member
*****
Posts: 5687



« Reply #7 on: October 03, 2014, 08:49:11 am »

Oh and I am 600 miles away from car so nothing I can do about a pic at moment

cheers Richie
Logged

Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
leec
Hero Member
*****
Posts: 2599


« Reply #8 on: October 03, 2014, 10:12:03 am »

Thanks Richie,
If you have one of the -8 ones in stock, the one requiring the fitting welding on the tank I will take one of those

Lee
Logged
dannyboy
Hero Member
*****
Posts: 1169



« Reply #9 on: October 03, 2014, 22:12:31 pm »

tourques do a bolt in one i fitted one to my jaz tank  search on ebay
Logged

8.77@156.8mph 
O/FF 60
......
leec
Hero Member
*****
Posts: 2599


« Reply #10 on: October 07, 2014, 17:54:05 pm »

Right, sorted Grin
Thank you to Richie+Jo for supplying the valve super quick and big thank you to Alex Taylor for neatly welding the fitting to the Tank. A job which I couldn't watch initially!!
Lee

Logged
Rocket Ron
Hero Member
*****
Posts: 2861


It's old school for a reason


« Reply #11 on: October 07, 2014, 20:51:53 pm »

Looks great lee

Last time Alex welded a fitting to my tank It went off with a real bang and ballooned the tank, I'm sure I can get and extra 1/2 gallon in there now lol
Logged

13.12 @ 101.84

Grooving out on life

You can't polish a turd but you can roll it in glitter
leec
Hero Member
*****
Posts: 2599


« Reply #12 on: October 07, 2014, 21:48:20 pm »

Looks great lee

Last time Alex welded a fitting to my tank It went off with a real bang and ballooned the tank, I'm sure I can get and extra 1/2 gallon in there now lol

We talked about your tank. When he fired the first tack I was cowering in the corner of the workshop Shocked
Logged
Pages: [1] Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!