79 vapor canister
Thread Starter
Racer
Joined: Jan 2014
Posts: 339
Likes: 9
From: Goodyear AZ
79 vapor canister
Quick question on a 79 vapor canister, noticed fitting at the bottom of the canister. Have read that is an overflow, is that true? If so how long of a hose should I connect to it and where to route it?
I still have the original canister, looks ok not sure if I should replace.
Any advice would be appreciated.
thanks
I still have the original canister, looks ok not sure if I should replace.
Any advice would be appreciated.
thanks
Team Owner
Joined: Sep 2006
Posts: 31,273
Likes: 4,366
From: Westminster Maryland
Hi r,
The base cover of the canister has a drain molded into it.
In earlier years a short hose was connected to there drain. It still just drained on the ground.
Later years did away with the hose but the drain functioned in the same way.
If the canister became so saturated with gasoline it was a way for the gas to escape.
Regards,
Alan
Here's the bottom cap with the hose. (71)
The base cover of the canister has a drain molded into it.
In earlier years a short hose was connected to there drain. It still just drained on the ground.
Later years did away with the hose but the drain functioned in the same way.
If the canister became so saturated with gasoline it was a way for the gas to escape.
Regards,
Alan
Here's the bottom cap with the hose. (71)
Last edited by Alan 71; Mar 31, 2017 at 05:17 PM.
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
there is a filter at the bottom that can be accessed and replaced...but generally....unless they are molested or damaged in an accident...they do their jobs for a very very long time. one way to tell if it is bad is in the vacuum lines you can see or get to fall out of it small particles of charcoal. I have had to replace several charcoal canisters on the 92-96 Corvettes where these particles make their way all the way up to the purge valve and clog it.
DUB
Thread Starter
Racer
Joined: Jan 2014
Posts: 339
Likes: 9
From: Goodyear AZ
Hi r,
The base cover of the canister has a drain molded into it.
In earlier years a short hose was connected to there drain. It still just drained on the ground.
Later years did away with the hose but the drain functioned in the same way.
If the canister became so saturated with gasoline it was a way for the gas to escape.
Regards,
Alan
Here's the bottom cap with the hose. (71)
The base cover of the canister has a drain molded into it.
In earlier years a short hose was connected to there drain. It still just drained on the ground.
Later years did away with the hose but the drain functioned in the same way.
If the canister became so saturated with gasoline it was a way for the gas to escape.
Regards,
Alan
Here's the bottom cap with the hose. (71)
Thread Starter
Racer
Joined: Jan 2014
Posts: 339
Likes: 9
From: Goodyear AZ
there is a filter at the bottom that can be accessed and replaced...but generally....unless they are molested or damaged in an accident...they do their jobs for a very very long time. one way to tell if it is bad is in the vacuum lines you can see or get to fall out of it small particles of charcoal. I have had to replace several charcoal canisters on the 92-96 Corvettes where these particles make their way all the way up to the purge valve and clog it.
DUB
Thanks Dub, I did not see any particles all looked good.
