| [ Total Views: 1423 | Total Replies: 5 | Thread Id: 76798 ] |
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 ElusiveStranger
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| posted on May 26th, 2009 at 08:34 AM |
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A word of warning
I'd taken my bay tank vent to the PCV on the Scooby.
Previously I'd had a hole in my filler neck elbow (unbeknown to me) so everything was going well ie no problems
I changed the elbow when I discovered the hole.
Anyway rock on about 2-3 weeks...
Disaster. Tank wasn't breathing any longer
Petrol leaked out via the filler neck and the fuel sender!
I snapped on of my fittings removing the tank.
How are you guys venting your tanks? My filler cap is a non-venting one, I'm toying with drilling it.
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bajachris88
A.k.a.: Chris Leete
23 Windows of Awesome
The international telephone dialing code for Antarctica is 672.
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| posted on May 26th, 2009 at 06:40 PM |
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IS THAT SUCKED IN!!!?!?!?!??!!!
if so... than thats insane!
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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Joel
Scirocco Rare
Now containing 100% E-Wang
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| posted on May 26th, 2009 at 07:19 PM |
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cant remember, you running the charcoal canister balders?
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GTMac
A.k.a.: Andrew
Fahrvergnugen
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| posted on May 26th, 2009 at 09:15 PM |
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Ouch................funny that. I did a post here a while ago not being able to work out why my steering got tight. Mine was the opposite effect to
your suck, mine expanded that much it squeezed the steering column making it near impossible to drive. I like to think I have a long range fuel tank
now!
Im running a compulsary charcoal canister but the supposed fuel rated t-piece choked up and stopped any breathing. Changed it to a brass job and now
no worries.
1971 Type 3 Fasty - EJ20T
I love 242HP sleepers. 
How many sets of lights does it take a $229k Carrera S to learn? 
UPDATE: Cayman S, M3, B4 now added to the list. |
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ElusiveStranger
Officially Full-On Dubber
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| posted on May 26th, 2009 at 10:06 PM |
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Just done some very rough maths
Assume 3 sq feet for the top surface
Assuming 3 PSI pressure difference between the atmoshpere and tank....
1,600 lb of force on the top surface, 10 times my weight!
I didn't have the charcoal canister.
Wasn't a problem with my undiscovered split hose.
Live and learn. I hope this saves others time & expense. Possibly saves their vans from catching light like mine could have - my tank leaked via
the fuel gauge sender & filler neck. I had petrol dripping inches away from the hot exhaust.
Wondering about just venting the tank to atmosphere or plumbing in the can and doing it properly. (rolleseyes, I'll be doing it properly then)
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GeorgeL
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| posted on May 27th, 2009 at 09:10 AM |
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| Quote: | Originally
posted by ElusiveStranger
Just done some very rough maths
Wondering about just venting the tank to atmosphere or plumbing in the can and doing it properly. (rolleseyes, I'll be doing it properly then)
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Yep, air pressure can be pretty strong!
My '71 had the vents plumbed up into a sort of a can in the intake tower (up by the vent) and then down through the battery trays. Seemed like a
good way to prevent liquid gasoline from getting loose. Not exactly emission-friendly, though.
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