damn gas all over the side of the truck? any cures? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67cst · 01-20-2005, 03:08 AM

hey guys whenever i fill the tank in the 71 i get gas on the side of the truck, do i need a new cap with a better seal or is this just normal, the paint on the truck sucks anyways so i dont care too much but oneday when i paint it id love to have that problem taken care of, any i dont want to just fill the tank half way or id be at the gas station everyday

thanks, Derek

67cst · 01-20-2005, 03:09 AM

just to clear things up i mean like when i drive the truck after a fill up it leaks out the cap, wanted to make sure you understood that, its not like i leak gas from the nozzle when i fill the truck

Brainchild · 01-20-2005, 03:12 AM

I don't think it would be normal,I would get a new cap,and see if thast cures it.

dyingdeadman · 01-20-2005, 03:32 AM

i had that problem with a cheap cap i got from auto zone. i just put a new cap on it and it fixed that problem.

**special-K** · 01-20-2005, 07:36 AM

I`ve had that problem,we`re not alone.I`ve seen plenty nice trucks with either dull,yellowed,or cracked paint.Or,tarnished,bleached woodgrain moulding on cab corner.After a fill-up,usually with left side sitting lower it`ll happen.Often,later on,once the temperature rises and the vapors expand.I`ve had this happen on a job-site(dirt).When I noticed,later in the morning,I moved the truck and lit the spot.Never seen a 4"diameter spot burn for so long.Probably about 10 min.Changed the cap.

Maximum Overdrive · 01-20-2005, 08:13 AM

First thing I buy for these trucks is a locking vented cap and have never had a problem of them leaking. Only problems I have had were with stock and stock type caps.

70c10 · 01-20-2005, 08:26 AM

Sounds like your gasket is worn. Common problem.

1969K10 · 01-20-2005, 09:01 AM

I had to bend the (2) prongs on a gas cap to get it to seal tight enough to quit leaking like you're talking about. And that was after replacing the gasket...

67ChevyRedneck · 01-20-2005, 09:14 AM

Put a blazer tank under the bed

Or.....get a new cap.

Fred T · 01-20-2005, 09:57 AM

New cap should fix it. Also, when you paint, a good clear coat will resist gasoline.

Hooter · 01-20-2005, 06:19 PM

Quote:

Originally Posted by special-K

I`ve had that problem,we`re not alone.I`ve seen plenty nice trucks with either dull,yellowed,or cracked paint.Or,tarnished,bleached woodgrain moulding on cab corner.After a fill-up,usually with left side sitting lower it`ll happen.Often,later on,once the temperature rises and the vapors expand.I`ve had this happen on a job-site(dirt).When I noticed,later in the morning,I moved the truck and lit the spot.Never seen a 4"diameter spot burn for so long.Probably about 10 min.Changed the cap.

Ya happened to me, btw does anyone just make the woodgrain on its own, it's almost completley gone because of the good ole leaky gas cap

grayw0lf · 01-20-2005, 06:43 PM

Mine does the same thing, particularly on a hot day. I think I'm also in line for a new gasket. Ahhh, heck. I might go nuts & pay the $5.00 for a new locking gas cap.

cduster · 01-20-2005, 09:13 PM

I have in the past cut a shim out of a plastic milk carton to fit behind the gasket to fix this problem.

Dan

67cst · 01-20-2005, 09:21 PM

Thanks for the ideas guys, i think ill get a new cap this weekend.

67chevyredneck-i put a blazer tank under the box in my 67 and if i knew then whati know now i would of never spent money on the thing, for an extra couple hundred bucks you can a nice aluminum cell from fuelcellguy...these poly ones suck if you ask me

bobs409 · 01-21-2005, 10:01 AM

Speaking of locking gas caps, I had to use a hair dryer to get mine off yesterday! I put the old non locking cap back on until things warm up. First time that happened and it's been on there for over 7 years now. Man,it's been downright cold here in Pa! (9 degrees that morning)

The only time mine will leak gas is if I fill the tank and then park it in the sun on a hot day. The gas expands and starts dripping out of the cap.

big blue 72 · 01-21-2005, 02:41 PM

i cured my truck of the old leaking gas cap by bending the RIM of the gas filler neck up on the inside. this is what gets mashed down after time and so, the gas caps, even if new will not fit tight. TRY IT!

Perchjerker · 01-21-2005, 03:36 PM

That happened on mine as well. I still have the original gas cap on mine with the leather seal. I put oil on the seal and let it set and I only fill the tank to a little over 3/4. Hasn't happened since.

shortymac83 · 01-21-2005, 05:35 PM

once in a while, I won't screw it on right and it'll leak like a seive, or it'll just leak for the sake of leaking when I go around corners or something. I've just learned to fill the tank so that it won't slosh out.

big blue 72 · 01-22-2005, 10:11 AM

you guys need to try my cure. it really works!

01-20-2005, 03:08 AM	#1
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	damn gas all over the side of the truck? any cures? hey guys whenever i fill the tank in the 71 i get gas on the side of the truck, do i need a new cap with a better seal or is this just normal, the paint on the truck sucks anyways so i dont care too much but oneday when i paint it id love to have that problem taken care of, any i dont want to just fill the tank half way or id be at the gas station everyday thanks, Derek __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

01-20-2005, 03:09 AM	#2
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	just to clear things up i mean like when i drive the truck after a fill up it leaks out the cap, wanted to make sure you understood that, its not like i leak gas from the nozzle when i fill the truck __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

01-20-2005, 03:12 AM	#3
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	I don't think it would be normal,I would get a new cap,and see if thast cures it. __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

01-20-2005, 03:32 AM	#4
dyingdeadman Registered User Join Date: Aug 2004 Location: san marcos,tx Posts: 266	i had that problem with a cheap cap i got from auto zone. i just put a new cap on it and it fixed that problem. __________________ 72 GMC sierra 3/4 ton 402 bb 68 GMC 3/4 ton 2010 camaro rs: daily driver

01-20-2005, 07:36 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	I`ve had that problem,we`re not alone.I`ve seen plenty nice trucks with either dull,yellowed,or cracked paint.Or,tarnished,bleached woodgrain moulding on cab corner.After a fill-up,usually with left side sitting lower it`ll happen.Often,later on,once the temperature rises and the vapors expand.I`ve had this happen on a job-site(dirt).When I noticed,later in the morning,I moved the truck and lit the spot.Never seen a 4"diameter spot burn for so long.Probably about 10 min.Changed the cap. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-20-2005, 08:13 AM	#6
Maximum Overdrive December 21, 2012 Join Date: Apr 2000 Location: Black Eagle, Montana Posts: 1,634	First thing I buy for these trucks is a locking vented cap and have never had a problem of them leaking. Only problems I have had were with stock and stock type caps. __________________ *"!Ama Sua, Ama Kjella, Ama Lllulla!"*

01-20-2005, 08:26 AM	#7
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Sounds like your gasket is worn. Common problem. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

01-20-2005, 09:01 AM	#8
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	I had to bend the (2) prongs on a gas cap to get it to seal tight enough to quit leaking like you're talking about. And that was after replacing the gasket... __________________ 1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current 1969 K20 - V8, 465, 221, Eaton, D44 2012-current Nothin' but drums on all 4 corners! past horses in the stable 72 C10-short step (97-02), 68 C10-long fleet (06-12)

01-20-2005, 09:14 AM	#9
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Put a blazer tank under the bed Or.....get a new cap. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

01-20-2005, 09:57 AM	#10
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	New cap should fix it. Also, when you paint, a good clear coat will resist gasoline. __________________ Fred There is no such thing as too much cam...just not enough engine.

01-20-2005, 06:43 PM	#12
grayw0lf Registered User Join Date: Apr 2004 Location: Clanton, AL Posts: 1,253	Mine does the same thing, particularly on a hot day. I think I'm also in line for a new gasket. Ahhh, heck. I might go nuts & pay the $5.00 for a new locking gas cap. __________________ 85' CUCV M1009!!! The newest addition! 6.2diesel, Th400, NP208, & only 36k miles! 70' C-10 LWB Fleetside - Looking good these days! 05' Dodge Neon 88' Winner Escape Sport 1750 - 4.3v6 94' Seadoo SP 84' Honda TRX200, bare nekkid. Just a frame & tires. Always looking for another project or any good deal!

01-20-2005, 09:13 PM	#13
cduster Registered User Join Date: Oct 2002 Location: S.W. Michigan Posts: 403	I have in the past cut a shim out of a plastic milk carton to fit behind the gasket to fix this problem. Dan

01-20-2005, 09:21 PM	#14
67cst i love summertime Join Date: Jul 2002 Location: Kelowna BC Posts: 4,303	Thanks for the ideas guys, i think ill get a new cap this weekend. 67chevyredneck-i put a blazer tank under the box in my 67 and if i knew then whati know now i would of never spent money on the thing, for an extra couple hundred bucks you can a nice aluminum cell from fuelcellguy...these poly ones suck if you ask me __________________ 1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724

01-21-2005, 10:01 AM	#15
bobs409 1969 Custom 30 wrecker Join Date: Sep 2001 Location: Pottsville, Pa Posts: 2,611	Speaking of locking gas caps, I had to use a hair dryer to get mine off yesterday! I put the old non locking cap back on until things warm up. First time that happened and it's been on there for over 7 years now. Man,it's been downright cold here in Pa! (9 degrees that morning) The only time mine will leak gas is if I fill the tank and then park it in the sun on a hot day. The gas expands and starts dripping out of the cap. __________________ Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10

01-21-2005, 02:41 PM	#16
big blue 72 Senior Member Join Date: May 2002 Location: hamilton,ohio,usa Posts: 1,499	i cured my truck of the old leaking gas cap by bending the RIM of the gas filler neck up on the inside. this is what gets mashed down after time and so, the gas caps, even if new will not fit tight. TRY IT!



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01-21-2005, 03:36 PM	#17
Perchjerker Beer Power!!!!!!!!!! Join Date: Nov 2003 Location: Nacogdoches, TX Posts: 280	That happened on mine as well. I still have the original gas cap on mine with the leather seal. I put oil on the seal and let it set and I only fill the tank to a little over 3/4. Hasn't happened since. __________________ Rather be fishin'

01-21-2005, 05:35 PM	#18
shortymac83 hmm... Join Date: Jan 2004 Location: Culver, Indiana Posts: 1,631	once in a while, I won't screw it on right and it'll leak like a seive, or it'll just leak for the sake of leaking when I go around corners or something. I've just learned to fill the tank so that it won't slosh out. __________________ 1983 Oldsmobile Delta 88 1967 Chevy C-10 stripper www.fcrperformance.com - wanna go...faster? talk to FCR.

01-22-2005, 10:11 AM	#19
big blue 72 Senior Member Join Date: May 2002 Location: hamilton,ohio,usa Posts: 1,499	you guys need to try my cure. it really works!

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