73 Vapor Canister

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May 27, 2012 | 11:16 PM

mikecamp

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St. Jude Donor '12

73 Vapor Canister

I am restoring a 73. When I bought the car it was minus the motor and a few other items one being the fuel vapor canister. I have built a stock motor with the exception of headers, intake, hei distributer and holly carb. Now for my question. Do I need the fuel vapor canister?

May 27, 2012 | 11:24 PM

1986coupe

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From: Niagara Falls ON

From what I can see the vapor canister was first added in 1974.

I could be wrong though so please dig a little deeper.

May 28, 2012 | 08:36 AM

mikecamp

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St. Jude Donor '12

ttt

May 28, 2012 | 08:42 AM

mikecamp

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St. Jude Donor '12

My asm shows one with one line going to the pcv valve then to the carb and the second line going straight to the carb.

May 28, 2012 | 09:03 AM

Hodge

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From: Fort Smith AR

Quote:

Originally Posted by mikecamp

My asm shows one with one line going to the pcv valve then to the carb and the second line going straight to the carb.

my 73 has a vapor canister that was disconnected YEARS ago. It hooks up just like the assembly manual says. I intend to use it when I put the LS1 in.

May 28, 2012 | 09:14 AM

oldsarge

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From: Canboro Ontario

Quote:

Originally Posted by 1986coupe

From what I can see the vapor canister was first added in 1974.

I could be wrong though so please dig a little deeper.

You are mistaken, the canister was used in 73. It can be run without, but probably a good idea to use one.

May 28, 2012 | 11:28 AM

CA-Legal-Vette

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From: Scottsdale Arizona

Quote:

Originally Posted by oldsarge

You are mistaken, the canister was used in 73. It can be run without, but probably a good idea to use one.

It's behind the driver's side wheel well. There are three air/vapour hoses going to it. One is from the PCV line; one is from the carb and one is from the hard line to the tank. You should see the hard line from the tank on the frame rail near the motor on the driver's side. Have a look from underneath. The vapour canister may stilll be hiding under there.

May 28, 2012 | 11:32 AM

Mike Ward

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It also serves as the vent for the fuel tank to allow air in as the fuel is consumed. Although the system does only good and no evil, Bubba is frequently afraid of it and banishes it from his car.