The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-18-2003, 09:39 AM   #1
BigBlack68
Negative Camber
 
BigBlack68's Avatar
 
Join Date: May 2003
Location: Clearwater,Fla
Posts: 117
my truck smells

Ever time I make a turn left or right i get this very strong gas smell,is there anything i can do about this? I'm starting to get sick off this stuff ,thanks for the help
BigBlack68 is offline   Reply With Quote
Old 06-18-2003, 09:53 AM   #2
JIMs70GMC
user # 2756
 
JIMs70GMC's Avatar
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
It's probably a hole in the gas tank filler neck around/near the gasket. And when you turn your causing the gas to slush around and create fumes which are entering the cab. I patched mine no more gas smell. It maybe stronger when the windows are up or down I don't remember.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
JIMs70GMC is offline   Reply With Quote
Old 06-18-2003, 10:10 AM   #3
CPNE
Resident Curmudgeon
 
CPNE's Avatar
 
Join Date: Dec 1999
Location: NH
Posts: 6,662
That's odd. Mine smells after making a right turn out of a Taco Bell!

On a serious note, the above suggestion seems to be the place to start.
__________________
Currently on or near the homestead:

67 Chevy SWB 2WD stepside 350/3 on tree (Pat's)
67 GMC SWB 2WD Fleet 402/auto (Brian's under construction)
67 Chevy 3/4 ton 2WD 402/auto (Business Hauler)
67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC)
68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC)
70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC)
71 Chevy SWB stepside (Crushed by tree - parts donor)
72 Chevy 3/4 ton 4WD (Parts donor)
72 Chevy 3/4 ton 4WD Suburban (Parts Donor)
72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC)
81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler)
82 Camaro Z/28 355/Super T-10 (Pat's toy)
93 Caprice 9C1 (Brian's Cop Car)
02 Toyota Camry (Reliable but a souless steel and plastic hulk)
2011 2SS RS Camaro M6 Factory Hurst Shifter

Maybe I need to sell some of this crap

Yet another Bozo with a sawz-all
CPNE is offline   Reply With Quote
Old 06-18-2003, 10:33 AM   #4
old Rusty C10
Robert Olson Transport
 
old Rusty C10's Avatar
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,310
check the vent line too
__________________
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!!
old Rusty C10 is offline   Reply With Quote
Old 06-18-2003, 10:38 AM   #5
special70gmc
Registered User
 
special70gmc's Avatar
 
Join Date: Sep 2002
Location: long island, new york
Posts: 1,333
lol cpne but i dont think there are many toco bells around you for at least 50 mi. the landscape is really nice by you though -kyle
__________________
1986 c-10 swb 5/7 drop 20'' coys
1958 belair 2door
special70gmc is offline   Reply With Quote
Old 06-18-2003, 02:23 PM   #6
1972ChevyGuy
Registered User
 
1972ChevyGuy's Avatar
 
Join Date: Nov 2002
Location: Kannapolis, NC
Posts: 552
Yea, pull your seat up and check the lines on top real good, happened to mine also. The vent hose dry-rotted and was leaking barely.
1972ChevyGuy is offline   Reply With Quote
Old 06-18-2003, 03:48 PM   #7
BigBlack68
Negative Camber
 
BigBlack68's Avatar
 
Join Date: May 2003
Location: Clearwater,Fla
Posts: 117
Alright guys thanks for the help,i'll go try fixing it after it stops raining
BigBlack68 is offline   Reply With Quote
Old 06-18-2003, 05:07 PM   #8
70c10
67-72 Addict!
 
70c10's Avatar
 
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,856
Check the o ring on the top of the tank inside the cab.
__________________
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
70c10 is offline   Reply With Quote
Old 06-18-2003, 07:15 PM   #9
JIMs70GMC
user # 2756
 
JIMs70GMC's Avatar
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
Since yours is a 68 you shouldn't have a vent to the gas tank only a filler neck. Might be a good time to move the tank to under the bed.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
JIMs70GMC is offline   Reply With Quote
Old 06-18-2003, 07:20 PM   #10
COBALT
Senior Member
 
COBALT's Avatar
 
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
Funny. Mine smells about 5-6 hours after leaving the Taco Bell.....



Take the cardboard liner off the gas tank, and turn a courner on a cool day. Then get out and check the tops of the tank. I bet both sides will be wet.
__________________
'69 3/4 ton C20 2wd-350ci/TH400
'69 3/4 ton Custom 20 2wd-350ci/4sp Manual
'99 2wd 5.7 Chevy Tahoe
Seattle, WA.
COBALT is offline   Reply With Quote
Old 06-19-2003, 04:33 AM   #11
Southpa
Registered User
 
Southpa's Avatar
 
Join Date: May 2000
Location: Victoria, BC, Canada
Posts: 2,409
Before taking things apart and messing around I would suggest replacing the gas cap for starters. The gasket gets compressed after a while and fumes leak out. Its summer now and heat will cause expansion in the tank.
__________________
1970 GMC 1500 Custom
Original 350/TH350
Victoria, BC, Canada


You can wish in one hand and crap in the other.
See which one gets filled first.
Southpa is offline   Reply With Quote
Old 06-20-2003, 05:49 PM   #12
DevinM
Registered User
 
DevinM's Avatar
 
Join Date: Jan 2002
Location: Deerfield, MA USA
Posts: 198
My tank has two lines that exit the top part of the tank on the passenger side of the truck. Which line does what, I Where does each line go, AND if I blow into each hose, what should happen? Backpressure? Free flowing???
__________________
'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
DevinM is offline   Reply With Quote
Old 06-20-2003, 06:41 PM   #13
1972ChevyGuy
Registered User
 
1972ChevyGuy's Avatar
 
Join Date: Nov 2002
Location: Kannapolis, NC
Posts: 552
The lines go up the cab and i beleive to a vent hose in front of the door? Maybe mine was rigged like that at least :P
1972ChevyGuy is offline   Reply With Quote
Old 06-20-2003, 06:54 PM   #14
SEVEND2
Registered User
 
SEVEND2's Avatar
 
Join Date: Aug 2001
Location: Menifee, Calif, USA
Posts: 2,145
1 line is smaller the other a bit larger, Both run under the cab and alont the frame on the right inside, and to the fuel pump, the larger of the 2 goes to the feed on the pump which out goes to the carb, the small goes tot he fuel pump too, not sure its function, maybe a return or vent.............
__________________
With a 1972 Chevy Custom-10 Long bed w/350cid th350, (under-construction).

Progress on truck so far (follow link):
http://67-72chevytrucks.com/vboard/s...ad.php?t=51051

and stage 2

http://67-72chevytrucks.com/vboard/s...ad.php?t=58132


~ "Why couldn't you have just put the bunny back in the box?" ~
SEVEND2 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:38 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com