Vapor Canister?
Thread Starter
Racer
Joined: Dec 2003
Posts: 399
Likes: 0
From: Haslet,Texas
Vapor Canister?
When I go out into the garage, there is the smell of gas in the air. I can see no actual fuel leaks on the ground at all. My first guess is that I need to go ahead and replace my rubber fuel lines, and also the charcoal canister. I read that alot of you guys have found a replacement canister from NAPA, however when I called my local NAPA, they didn't show it at all in their computer. Is there a specific part number I should ask for or maybe a different year canister?
Melting Slicks
Joined: Aug 2001
Posts: 3,041
Likes: 122
From: Wichita KS
Originally Posted by 73'Vette
When I go out into the garage, there is the smell of gas in the air. I can see no actual fuel leaks on the ground at all. My first guess is that I need to go ahead and replace my rubber fuel lines, and also the charcoal canister. I read that alot of you guys have found a replacement canister from NAPA, however when I called my local NAPA, they didn't show it at all in their computer. Is there a specific part number I should ask for or maybe a different year canister?
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Can't remember the NAPA no. or find it on-line. I recall I got the correct number from the store and then ordered on-line along with other parts. 
Wish I had just let the store order it and would have saved shipping cost still paid state tax online.
But that gas smell could be the filler neck gasket. When I replaced my tank I found that 30 yr. old cork gasket all dry and cracked-up. But this would only leak with a nearly full tank and a bumby ride. Or maybe the old cap has lost its seal - bad gasket?
Anyways a good parts counter person at NAPA should be able to find that charcoal canister part no. for you. Sorry but destr
oyed my receipt.
Good luck. cardo0
Wish I had just let the store order it and would have saved shipping cost still paid state tax online.But that gas smell could be the filler neck gasket. When I replaced my tank I found that 30 yr. old cork gasket all dry and cracked-up. But this would only leak with a nearly full tank and a bumby ride. Or maybe the old cap has lost its seal - bad gasket?
Anyways a good parts counter person at NAPA should be able to find that charcoal canister part no. for you. Sorry but destr
oyed my receipt.Good luck. cardo0
Racer
Joined: Dec 2003
Posts: 275
Likes: 6
From: NY
Originally Posted by 73'Vette
When I go out into the garage, there is the smell of gas in the air. I can see no actual fuel leaks on the ground at all. My first guess is that I need to go ahead and replace my rubber fuel lines, and also the charcoal canister. I read that alot of you guys have found a replacement canister from NAPA, however when I called my local NAPA, they didn't show it at all in their computer. Is there a specific part number I should ask for or maybe a different year canister?
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Okay 73'Vett, I found the NAPA part# still in my online account from previous order. For my '74 I used #CRB229817 (just 229817 will work online). Best way is bring in old EVC to compare with catalog as 5 part numbers look the same but have different dimensions and tubing sizes. 
Again good luck. cardo0
Again good luck. cardo0
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Thread Starter
Racer
Joined: Dec 2003
Posts: 399
Likes: 0
From: Haslet,Texas
Sure enough, NAPA part#229817 brings up a description for Echlin Fuel System Fuel Vapor Canister. That looks to be the one! Thanks for the help!
As for the other suggestions, I'll be checking all the metal and rubber lines for any signs of leaks. That small plastic tank that was mentioned...is this the check valve that someone had a post on awhile back? I'll try and locate that part and make sure it isn't leaking as well.
As for the other suggestions, I'll be checking all the metal and rubber lines for any signs of leaks. That small plastic tank that was mentioned...is this the check valve that someone had a post on awhile back? I'll try and locate that part and make sure it isn't leaking as well.
Melting Slicks
Joined: Mar 2003
Posts: 2,512
Likes: 49
From: Franklin IN
Vapor Canister
I can not address the replacement issue. But I highly reccomend the hose replacement. Last year at Vettes on the Rockies the return line to the from canister from the tank cracked. Fuel poured out of the crack if we had side pipes on the car we would have had a fire for sure.
On the wifes 79 the tank is sealed the carb is vented to the canister the only place for fumes to vent off is out the canister. So if you keep your tank full as most of us do you may always have a small amount of vapor as a result. The C-3 systems I don't believe can contain the pressure of current fuel systems.
On the wifes 79 the tank is sealed the carb is vented to the canister the only place for fumes to vent off is out the canister. So if you keep your tank full as most of us do you may always have a small amount of vapor as a result. The C-3 systems I don't believe can contain the pressure of current fuel systems.
Racer
Joined: Dec 2003
Posts: 275
Likes: 6
From: NY
Originally Posted by 73'Vette
Sure enough, NAPA part#229817 brings up a description for Echlin Fuel System Fuel Vapor Canister. That looks to be the one! Thanks for the help!
As for the other suggestions, I'll be checking all the metal and rubber lines for any signs of leaks. That small plastic tank that was mentioned...is this the check valve that someone had a post on awhile back? I'll try and locate that part and make sure it isn't leaking as well.
As for the other suggestions, I'll be checking all the metal and rubber lines for any signs of leaks. That small plastic tank that was mentioned...is this the check valve that someone had a post on awhile back? I'll try and locate that part and make sure it isn't leaking as well.
Last edited by sjr1971; Jul 17, 2004 at 08:08 PM.
Thread Starter
Racer
Joined: Dec 2003
Posts: 399
Likes: 0
From: Haslet,Texas
Thanks for all the advice guys. I just got finished replacing the vapor canister and almost all of the rubber fuel hoses. The only hoses I didn't change were the ones near the fuel pump, because it looks like the prior owner already did that. Also, I didn't replace the rubber line coming out of the bottom of the tank since I'll have to do that the next time the tank is empty. I did find the check valve, so I took it down and cleaned it up to make sure it wasn't cracked. Hopefully with almost all new rubber lines and the new vapor canister my fuel smell will go away.
