Help the idiot - Vapor Lines
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So I do accounting by day and am learning truck by night. I can't figure out the purpose & where the :cuss: vapor lines are supposed to be attached. Or do I need them if my tank is EEC?
I bought the truck already torn down, but I don't think having extra means I'm more efficient. In reference to the below pdf, Where are the different ends supposed to connect, or do they function like a plumbing P-trap to catch/prevent vapors? It's a 1972 Chevy C10 402ci, if that helps. A - Goes to Fuel Pump B & C - Are buddies/connected by hose D - no idea... Should #5 be vertical or horizontal? :help: |
Re: Help the idiot - Vapor Lines
Go to the LMC website and look at their catalog pictures of fuel lines. It will explain what you want to know. Easier than me scanning a picture for you. I have a 72 C20 and the the hooked line is a vent that runs along the frame rail on the passenger side. I overfilled my tank and had fuel running out of it until it drained down. If you can't figure it out from that let me know and I will see what other info I have.
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Re: Help the idiot - Vapor Lines
A does not go to the fuel pump. It goes to a charcoal canister in the engine compartment. The big loop (5) goes up into the passenger side pillar between the door and the rear glass. D connects to the fuel tank.
Here is how the loop attaches to the tank and where it goes in the pillar. Then it runs into another hardline along the tank edge then through the floor. This is in my 1972 GMC C15. http://67-72chevytrucks.com/vboard/s...&postcount=313 Gary |
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Thanks for your help, and your rebuild project looks great. Mike |
Re: Help the idiot - Vapor Lines
No problem Mike. And thanks! :)
Gary |
Re: Help the idiot - Vapor Lines
lintcollector, I have the EEC corner vent line (shown as #5 part) listed in the parts section if interested. Not sure, but may have the section that goes beneath the cab also, have to do some searching in the parts shed. I moved the tank on my '71 4x4 to under the bed behind the axle.
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Re: Help the idiot - Vapor Lines
1970 C20 trucks didn't have the vapor recovery system.
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Thanks Steeveedee |
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