Fuel Tank Question...Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

myoldchevytruck · 10-05-2008, 08:43 AM

I have a 69' Stepside with a 72' tank in the cab. Since there is not a vented fuel cap for these tanks (72' they went to EEC). I'll have to set it up like the factory did.

Yesterday, I picked up a charcoal canister and fuel line (both rubber and hard line) with intentions of hooking everything up. When I bought the sending unit from Brothers, I purchased a NON EEC Unit. My guess is that to run this properly, I'll have to get the correct sending unit. OR WILL I? My Question. How do I run this whole charcoal canister setup? From what I gather, a line runs from the tank to the charcoal canister then to a vacuum on the intake. Any help, especially pictures would be great.

Little note about the tank: I have already had it cleaned, boiled and sealed at the local rad shop. Already have $$ into it. So I'm gonna try to use it. Thanks in advance.

Sport/Truck · 10-05-2008, 08:57 AM

I'm going to assume you'll need the 72 sending unit. The only reason I say this is because of the vent line to the charcoal canister.
Other than that, I don't see a problem.
Are you able to return the sending unit?
s/t

myoldchevytruck · 10-05-2008, 09:09 AM

Probably not, but I'll call Brothers in the morning. If not, I'll try to sell it after all, it is brand new, never used. Some one may be able to use it. Luckily, I purchased it at the sale price - $35.00 Thank for the reply.

cdowns · 10-05-2008, 09:47 AM

you really dont need the charcoal cannister just use the fitting to run a vent line. a simple coil of tubing higher than the tank placed up behind the door pillar then a length of hose to outsife the cab is sufficent to vent the tank

10-05-2008, 08:43 AM	#1
myoldchevytruck Retired Air Force Veteran Join Date: Aug 2007 Location: Pembroke Pines, Florida 33024 Posts: 1,808	Fuel Tank Question...Help I have a 69' Stepside with a 72' tank in the cab. Since there is not a vented fuel cap for these tanks (72' they went to EEC). I'll have to set it up like the factory did. Yesterday, I picked up a charcoal canister and fuel line (both rubber and hard line) with intentions of hooking everything up. When I bought the sending unit from Brothers, I purchased a NON EEC Unit. My guess is that to run this properly, I'll have to get the correct sending unit. OR WILL I? My Question. How do I run this whole charcoal canister setup? From what I gather, a line runs from the tank to the charcoal canister then to a vacuum on the intake. Any help, especially pictures would be great. Little note about the tank: I have already had it cleaned, boiled and sealed at the local rad shop. Already have $$ into it. So I'm gonna try to use it. Thanks in advance. __________________ Harry 69' SWB Step Side 1/2 Ton w/68' Front Clip Swap from Leafs to Trailing Arms (Complete) Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front) 3/6 Drop Help Support The Board Click Here For Information On How To Subscribe Krue's FAQ Page Vendors

10-05-2008, 08:57 AM	#2
Sport/Truck Sierra Grande Club Join Date: Jan 2007 Location: New Mexico USA Posts: 2,433	Re: Fuel Tank Question...Help I'm going to assume you'll need the 72 sending unit. The only reason I say this is because of the vent line to the charcoal canister. Other than that, I don't see a problem. Are you able to return the sending unit? s/t __________________ 1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. Last edited by Sport/Truck; 10-05-2008 at 08:58 AM.

10-05-2008, 09:09 AM	#3
myoldchevytruck Retired Air Force Veteran Join Date: Aug 2007 Location: Pembroke Pines, Florida 33024 Posts: 1,808	Re: Fuel Tank Question...Help Probably not, but I'll call Brothers in the morning. If not, I'll try to sell it after all, it is brand new, never used. Some one may be able to use it. Luckily, I purchased it at the sale price - $35.00 Thank for the reply. __________________ Harry 69' SWB Step Side 1/2 Ton w/68' Front Clip Swap from Leafs to Trailing Arms (Complete) Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front) 3/6 Drop Help Support The Board Click Here For Information On How To Subscribe Krue's FAQ Page Vendors

10-05-2008, 09:47 AM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Fuel Tank Question...Help you really dont need the charcoal cannister just use the fitting to run a vent line. a simple coil of tubing higher than the tank placed up behind the door pillar then a length of hose to outsife the cab is sufficent to vent the tank __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

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