Pressurized gas tank?
Thread Starter
TECH Resident
Joined: Jan 2004
Posts: 832
Likes: 0
From: Castro Valley, CA
Pressurized gas tank? Does anyone else running an aftermarket fueling setup (w/return) have pressure in their gas tank?
When I've gone through 3/4 tank and I unscrew the gas cap to fill up, I get a significant whoosh of pressure being released around the cap as it's unscrewed.
I wouldn't want to have a lit cig in my mouth when it happens, I'll tell you that.
But is this a problem?
When I've gone through 3/4 tank and I unscrew the gas cap to fill up, I get a significant whoosh of pressure being released around the cap as it's unscrewed.
I wouldn't want to have a lit cig in my mouth when it happens, I'll tell you that.
But is this a problem?
Joined: Jun 2004
Posts: 1,501
Likes: 7
From: Ft. Irwin, California (But Virginia is home)
Does anyone else running an aftermarket fueling setup (w/return) have pressure in their gas tank?
When I've gone through 3/4 tank and I unscrew the gas cap to fill up, I get a significant whoosh of pressure being released around the cap as it's unscrewed.
I wouldn't want to have a lit cig in my mouth when it happens, I'll tell you that.
But is this a problem?
When I've gone through 3/4 tank and I unscrew the gas cap to fill up, I get a significant whoosh of pressure being released around the cap as it's unscrewed.
I wouldn't want to have a lit cig in my mouth when it happens, I'll tell you that.
But is this a problem?
Does anyone else running an aftermarket fueling setup (w/return) have pressure in their gas tank?
When I've gone through 3/4 tank and I unscrew the gas cap to fill up, I get a significant whoosh of pressure being released around the cap as it's unscrewed.
I wouldn't want to have a lit cig in my mouth when it happens, I'll tell you that.
But is this a problem?
When I've gone through 3/4 tank and I unscrew the gas cap to fill up, I get a significant whoosh of pressure being released around the cap as it's unscrewed.
I wouldn't want to have a lit cig in my mouth when it happens, I'll tell you that.
But is this a problem?
Just looked on google quick. They say it makes "bad ozone". ROFL
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
but the high pressure gasses WILL ignite. dumdum
Thread Starter
TECH Resident
Joined: Jan 2004
Posts: 832
Likes: 0
From: Castro Valley, CA
...just to elaborate a little, this is a LOT of pressure, not just a little --phizzz-- it's enough to blow your mullet back a bit, and lasts for a couple of seconds.
Still waiting on the Lit Cig Video...
But in the meantime check out this FLIR imaging of fumes at the pump: http://www.youtube.com/watch?v=j_NswgZFgzA&NR=1
I bet the fumes releasing from my tank are 20x that volume. Yikes.
Still waiting on the Lit Cig Video...
But in the meantime check out this FLIR imaging of fumes at the pump: http://www.youtube.com/watch?v=j_NswgZFgzA&NR=1
I bet the fumes releasing from my tank are 20x that volume. Yikes.
...just to elaborate a little, this is a LOT of pressure, not just a little --phizzz-- it's enough to blow your mullet back a bit, and lasts for a couple of seconds.
Still waiting on the Lit Cig Video...
But in the meantime check out this FLIR imaging of fumes at the pump: http://www.youtube.com/watch?v=j_NswgZFgzA&NR=1
I bet the fumes releasing from my tank are 20x that volume. Yikes.
Still waiting on the Lit Cig Video...
But in the meantime check out this FLIR imaging of fumes at the pump: http://www.youtube.com/watch?v=j_NswgZFgzA&NR=1
I bet the fumes releasing from my tank are 20x that volume. Yikes.
But anyhow if you have a stock tank with evap still hooked up its normal to have pressure, if you have an aftermarket tank with a vent its not normal to build pressure.
I used to throw lit cigarettes int a pan of C16 to freak people out at the shop, its not that easy to ignite. I remember mythbusters dropping lit cigarettes into a toiled filled with gasoline with the proper a/f in a closed space..
But anyhow if you have a stock tank with evap still hooked up its normal to have pressure, if you have an aftermarket tank with a vent its not normal to build pressure.
But anyhow if you have a stock tank with evap still hooked up its normal to have pressure, if you have an aftermarket tank with a vent its not normal to build pressure.
I had this problem and it turned out that Fuel Safe put a spring-loaded tipover valve in my cell that didn't allow pressure out. My cell bulged and did that pressure buildup thing. I had to go into the cell and remove the spring, now the vent is 2-way.
Jim
Jim