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  • March 29, 2024, 06:11:44 AM

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Author Topic: pressurized gas tank  (Read 3895 times)

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Offline DAVE

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pressurized gas tank
« on: March 06, 2015, 09:08:36 AM »
when driving my car the gas tank builds up pressure to the point that it will whistle out of the gas cap to relieve pressure I don't think this is normal. What would cause this
Thanks

Offline JayRamb

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Re: pressurized gas tank
« Reply #1 on: March 06, 2015, 01:17:00 PM »
Inspect the fuel vap canister. Sounds like an evap system failure. Check all fuel lines under the hood. Even the little things check out...the outlet of fuel filter at the carb/to the carb should be at the noon position.
Jayson H.
Best HWY Mileage of 87 Eagle:  26.2 MPG

Believer in AMSOIL & Seafoam
1987 Garnet Red Eagle Wagon: 70,500 miles
1967 Rambler Rebel 4 Door 290 V8 (original family car) Marina Aqua 142K miles
1985 Eagle Wagon in Autumn Brown 74,800 miles as my daily driver
SOLD 1984 Black Eagle Limited w/Tach & gauge cluster: 245,100 miles SOLD

Offline IRON HORSE

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Re: pressurized gas tank
« Reply #2 on: March 11, 2015, 02:42:43 PM »
Hello Dave,
      Are you sure it's pressure .. could it be vacuum ?  I had the vent tube on the top of my tank rust shut .. I just took the gasket out of the gas cap so it could breathe .. but that's me.
                                                                                                                              Later, Iron Horse  :o
                                  Oh! .. by the way how is the " casualty" coming along ?
« Last Edit: March 11, 2015, 02:45:11 PM by IRON HORSE »

Offline DAVE

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Re: pressurized gas tank
« Reply #3 on: March 12, 2015, 09:39:49 AM »
I'm pretty sure it's pressure it's worse on warmer days with a full tank but I'll double check, right now it's more of a concern than a problem. the fuel filter is oriented correctly with the fuel tank return line on the top at 12 o'clock. the casualty is almost ready for final assembly I have almost all the parts I need and found an aluminum valve cover at u-pull-it think I paid $15 for it so this spring when its a little warmer and dryer out I will get to it, Apes17 is at me all the time to fix it I told we would get it going with emphasis on we. She's tired of driving her Kammback wants to drive the wagon

Offline carnuck

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Re: pressurized gas tank
« Reply #4 on: March 14, 2015, 02:27:12 AM »
Pull the hose off the cannister at the front that goes back to the tank and see if it's plugged.
AMC/Jeep gauges are for amusement only. Any correlation between them and reality is purely coincidental!

Offline macdude443

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Re: pressurized gas tank
« Reply #5 on: April 14, 2015, 03:41:35 PM »
Pull the hose off the cannister at the front that goes back to the tank and see if it's plugged.

Yep.  I've removed the gas cap and connected a hand vacuum pump up to the vent line under the hood to see if I can draw air through the line.  My SX/4 vent line is plugged up along the frame somewhere.  I would not just remove the gasket.  God forbid you roll it over, the fuel will spill out.
1982 Eagle SX/4
1986 Eagle Wagon

Offline carnuck

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Re: pressurized gas tank
« Reply #6 on: April 14, 2015, 04:08:17 PM »
Probably collapsed/rotted rollover valve.
AMC/Jeep gauges are for amusement only. Any correlation between them and reality is purely coincidental!

Offline macdude443

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Re: pressurized gas tank
« Reply #7 on: April 14, 2015, 04:21:31 PM »
Yep.  Time to place an order with DeLorean Motor Company.
1982 Eagle SX/4
1986 Eagle Wagon

Offline carnuck

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Re: pressurized gas tank
« Reply #8 on: April 14, 2015, 04:51:13 PM »
??? They are a few miles from me here in Seattle (actually Bellevue, WA)
AMC/Jeep gauges are for amusement only. Any correlation between them and reality is purely coincidental!

Offline macdude443

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Re: pressurized gas tank
« Reply #9 on: April 16, 2015, 01:05:26 PM »
The DeLoreans use the same rollover valve.  I bought one as a spare a while back.
1982 Eagle SX/4
1986 Eagle Wagon

 

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