Fuel Tank Vapor Line - where's it end?! [Archive] - Chevelle Tech

: Fuel Tank Vapor Line - where's it end?!


Shawn
Sep 19th, 99, 6:40 PM
I have a '70 Elky and I know it originally came with a fuel tank vent line. Where did the other end go? Did it go to a fuel vapor canister and where was it mounted? Is it still available by anyone and is there a part# for it? Sorry about all the questions but I need to know. Thanks!

1970 Chevy Custom El Camino aka Kaileigh
Green Mist & Silver w/Green Vinyl Top
350ci/300HP 4bbl & Factory Dual Exhaust
Non-SS with Factory Rallies!
TH-350 Automatic - 2.73 Posi Rear
My El Camino Home Page - www.dreamelectric.com (http://www.dreamelectric.com)

[This message has been edited by Shawn (edited 12-26-1999).]

Dave Birdwell
Sep 19th, 99, 8:11 PM
The rear end goes to the fuel meter (sending unit) and the front end under the hood goes to the small fitting on the fuel pump. Line size is 1/4"

Shawn
Sep 20th, 99, 8:02 AM
Someone had cut the line on mine. I looked at the fuel pump and there is no open port on it that looks like the place where it would attach to. Am I missing something? My car is a factory A/C car and has that style fuel pump. Where would the brake vapor line go to?

Fred Aldrich
Sep 20th, 99, 9:13 AM
There's a lot of confusion about fuel vent and fuel return lines. Beginning with 1970, GM standard was:
Fuel Line - 3/8" (goes to fuel pump)
Fuel Return Line - 1/4" (goes to the fuel pump, not all cars have one)
Fuel Vent or Vapor Line - 5/16" (goes to vapor cannister located in the drivers side front of the engine compartment on Chevelles)

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Fred Aldrich
Web Site: www.GeoCities.com/~69_chevelle (http://www.GeoCities.com/~69_chevelle)




[This message has been edited by Fred Aldrich (edited 09-24-99).]