questions about the elimination of EEC canister in 72

[yote1234]

i want to eliminate the eec canister in my 72 cheyenne during my restoration. i know the fuel cap needs to be changed to a vented one.


my questions are...
1- can i use my original tank,and neck?
2- do i need new single tube sending unit ?
3- do i run only (1) fuel line from tank to carb ? and what size ?
4- will the new vented cap fit my factory 1972 tank?
5-after change,can i eliminate the in cab wall vent line?

thanx in advance... dave

[bgons]

I have the same question

[yote1234]

anyone know???

[BLACK AND BLUE 67-72]

1. Yes you can use your original tank.

2. No you do not need a single tube sending unit.

3. Yes only 1 line and either 5/16 or 3/8 line depending on what engine you have you can use your line that is feeding your fuel pump now, unless it is rusted and has holes in it.

4. I am using my orginal cap and I have had no issues, because it is a vented system already, that is what the extra line is going up into the cab.

5. You can but why worry about it? You can't see it and mine never smells the cab up, so I don't really see the need to pull it out.

Hope this helps!!

[GASoline71]

I couldn't have said it better myself B&B.

When I was redoing my fuel system in my 1972 I even took out all the Evap lines that ran along the frame rails, and blocked them off at the tank. Still have the original filler neck, have a stock unvented cap, and left the stuff in the cab and door jamb alone. No sweat...

Gary

[yote1234]

interesting.so what needs to be done with the extra line on the sending unit? block off? . i thank you for reply's... dave