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#1 |
Registered User
Join Date: Mar 2001
Location: Dover, NH USA
Posts: 194
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I realize now not to park the truck on uneven ground after filling the tank, but want to ask if this is normal.
When ever I fill my gas tank in my 67 C10, not to the top, but close. When I park on a sloped graded, low on the filler side, it leaks. It leaves a big puddle, not to mention the gas makes a mess down the corner of the cab. I have tighted the cap and learned not to park this way. I am curious if this is normal, or do I have some kind of pressure problem? Thanks in advance to all that reply!! Last edited by johnymac; 05-21-2003 at 06:12 PM. |
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#2 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,293
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ive never heard of that happening before have ya checked to make sure the vent lines arent blocked other than that id say get another fuel cap
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#3 |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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I'm not 100% positive but I believe all but 1972 trucks have tanks that are vented through the cap.
The same thing will happen (leak) if you fill it full then park it in the sun on a hot day.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#4 |
Registered User
Join Date: Feb 2002
Location: Ferndale, Michigan, USA
Posts: 94
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The vent is in the cab in the pass side "B" post, and vent is from the evap canister.
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#5 |
Registered User
Join Date: Jan 2002
Location: Deerfield, MA USA
Posts: 198
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My cheap alternative is to take a piece of saranwrap and fold it a few times, cover the hole, and tighten the cap. Worked for me!
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'71 Chevy C-10 - Current '62 Imapla SS - Traded for my current '73 Nova Hatch - traded for ATC-350X '73 Chevelle Deluxe - First car (R.I.P) DEERFIELD, MA |
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#6 |
Registered User
Join Date: Feb 2003
Location: Mesquite, Tx
Posts: 396
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MAKE SURE THE RUBBER INSIDE THE CAP ISN'T DRY ROTTED. IF THAT IS OK MAKE SURE YOU HAVE THE RIGHT CAP. I GOT ONE FROM AUTO ZONE AND IT WENT ON BUT DID NOT SEAL FOR SH#T. I WOULD START THERE.
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GM 330HP/350, Magnuson 122HH, Tremec TKO 5spd |
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#7 |
Livin' it up.
![]() Join Date: Nov 2001
Location: Richland, MI
Posts: 2,212
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i had the same problem with my 69 that and the previous owners banged up the filler neck a bit. I just ripped out the old rubber seal and put in a thicker new one... was kinda tough to seat at first but seals great. i think i picked up 1/4" rubber sealant from the hardware store that was setup for chemical resistance
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-Greg; Sold the 69 C20. It's off to a better home with more love! Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires. ![]() |
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#8 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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The seal on my cap had gone porous, it was fine immeadiately after filling up but after a while of cornering it would start to leak. The seal by this point had soaked up so much gas it started to leak out. New cap solved the problem.
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#9 |
the ring around my finger
Join Date: Nov 2002
Location: Spring Lake NC
Posts: 187
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i had that problem to put a new gas cap on then took the old gasket of the other one and put it on top of the new one
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