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#1 |
Registered User
Join Date: Jul 2001
Location: Laughlin, Nv. USA
Posts: 700
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Fuel Sending unit lines ?
I have my new sending unit, it has 3 lines I will only be using the large draw line from the tank to the fuel pump.
I did away with the canisters and there is no return fuel lines. What should I do with the other two line outlets on top of the sending unit ? plug em ??? do any need to breath ??? |
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#2 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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I plugged my return lines off when I replaced the fuel line to the pump from the valve on the bed rail. The other I think is a vent but I routed my vent lines together where the charcoal canisters were. I would vent one with a breathable cap where fumes go out but nothing comes in.
__________________
1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#3 | |
Registered User
Join Date: Jul 2001
Location: Laughlin, Nv. USA
Posts: 700
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Quote:
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#4 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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It's a cap that goes inline. It's a vent cap like on the rear axle. It has a vent tube there as well.
__________________
1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#5 |
Registered User
Join Date: Jul 2001
Location: Laughlin, Nv. USA
Posts: 700
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Where can you buy it ?
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#6 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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Not sure on that. Probably a auto part store. Tell them you're looking for a cap for a line that needs to breathe but still be able to keep stuff out.
__________________
1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#7 |
You get what you pay for
![]() Join Date: Dec 1999
Location: Cherryville, NC
Posts: 4,798
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I'm just wondering if you can still buy vented gas caps. They probably don't sell one to fit a unleaded fuel tank. I'm not even sure you can buy any vented caps anymore.
But, if you can, you could cap off the vent/charcoal canister line. If not, you will need a filter/cap on this line so gas vapors can escape the tank, or else it may just rip the tank wide open. I know you've seen plastic gas cans blow up like a balloon when all the vents are shut. It would cause problems it would seem to me.
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Mike 1985 Chevy C-10 |
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#8 |
Registered User
Join Date: Jul 2001
Location: Laughlin, Nv. USA
Posts: 700
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I guess I could just run the two lines out toward the body with a restricted opening so it could breath ?
Maybe use some type of filter like hog hair ??? |
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#9 |
Registered User
Join Date: Apr 2003
Location: New Mexico. Of all places for an Island boy.
Posts: 180
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I blocked off the 2 other lines (vent & return) and drilled an 1/8" hole in the center of my gas caps, to vent my tanks. Has worked fine for over 20 thou miles.
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