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05-07-2006, 11:13 AM
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#1 |
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Registered User
Join Date: May 2006
Location: knoxville
Posts: 1
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gas smell
i have a 71 c10 that i use as a daily driver. It smells very strong of gas when driven. How can i fix this?
Last edited by s.cntn; 05-07-2006 at 11:14 AM. |
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05-07-2006, 11:36 AM
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#2 |
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Rottenwood Garage Member
Join Date: May 2005
Location: Marietta, Georgia
Posts: 4,321
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Re: gas smell
Check the gasket arround the filler neck on the outside of the truck...replace if cracked. Check O ring gasket under sending unit...replace if cracked/worn. Check rubber parts of fuel lines on tank end and replace if cracked. Inspect for pin holes on fuel tank...JB-Weld if leaking. Inspect engine compartment for fuel leaks. Carb. area, fuel lines.
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05-07-2006, 03:58 PM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: gas smell
Also, if there is an exhaust leak under/before the cab... that can be very misleading.
The 2 main areas on the in cab tank that I have found for leakage ar the filler neck (commonly the joint from filler to tank is cracked from ppl leaning on the pump nozzle when pumping) and the rubber o ring on the sending unit piece. Slide the seat forward and look for spots int he dust that look like it's had fuel rinsing it off. |
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05-07-2006, 10:19 PM
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#4 |
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Registered User
Join Date: Dec 2004
Location: Southeast Tx
Posts: 1,302
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Re: gas smell
I had my 71 parked in the garage for 4 days while on vacation and when I got back the garage smelled of strong gas fumes. One of the rubber lines to the fuel pump started leaking... There are many different points for a possible leak... check everything. BTW, Welcome to the board!
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"The rays of light thru the Shiner Bock bottle make me wanna turn the key and put down the throttle...and get lost down 35" - Jason Boland www.YouTube.com/user/593Films - Watch My Videos!  1977 Silverado K10 2014 Dodge Durango (Wife-mobile) 2008 Dodge Ram Lone Star Edition (Daily driver) |
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05-07-2006, 10:57 PM
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#5 |
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Senior Member
 
Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: gas smell
Even with a new gas cap I don't fill much above 3/4 tank because it can still leak when the gas slops around in there. Might help.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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05-07-2006, 11:40 PM
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#6 |
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Turbo Guy
Join Date: Jan 2005
Location: Calgary Alberta
Posts: 353
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Re: gas smell
Just my 2 cents but, When I took the cab off mine to send to paint I found a return line for the fuel pump has a factory splice that is conected by a chunk of rubber hose, it was really hard to see and I did not know it was there before. The rubber hose was so bad it was a hiccup away from leaking fuel in excess(was already seeping). I mention this because it is very close to my header and it wouldn't take much to light on fire from there. Just my 2 cents ,Dave
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05-08-2006, 08:13 AM
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#7 |
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Registered User
Join Date: Jan 2005
Location: Eastern Nebraska
Posts: 613
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Re: gas smell
My 71 had gas tank leak (owned this thing back in HS). About got sick from the fumes. Replaced with junkyard tank. Pretty easy.
But rust / dirt in the junkyard tank then clogged up my fuel filter, cause stalling at highway speeds. Replaced fuel filter every oil change for a while until all the gunk was out of the tank.
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'72 Chevy K-20 Crate 350, SM465, 4.10's |
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