Charcoal canister installation

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May 6, 2008 | 03:36 PM

blckslvr79

Thread Starter

Drifting

Joined: Jan 2008

Posts: 1,962

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From: Schererville IN

Charcoal canister installation

I'm installing a charcoal canister back in my car. (Previous owner removed the original one.) The donor canister is from a 76 or 77 I believe. It has two vac ports on top and one on the bottom.

One on top is labeled Tank and other Carb. One on bottom has no marking. I assume the one marked Tank would go to the vent line to the tank. Where do I hook up the one marked Carb? Should it be "T"'d off the PCV line or to the carb? Where does the one on the bottom go?

I'm running an Edlebrock Air Gap and Holley 650, so originality and emmission legal is not a concern.

Thanks.
Steve

May 6, 2008 | 03:41 PM

eastltd

Drifting

Joined: Jul 2006

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From: Sault Ste. Marie Ontario

My 73 has three connections on top: Tank, Carb & PCV. There is a forth connection on the bottom which I assume is a drain. I haven't tried to connect it yet but I'll do some digging tonight to see if I can find some info that will help us both.

May 6, 2008 | 05:16 PM

Alan 71

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Joined: Sep 2006

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From: Westminster Maryland

EASTLTD's guess was right, the bottom nipple has a piece of hose about 5" long and is just a drain.
Regards,
Alan

May 6, 2008 | 05:32 PM

7T1vette

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From: Crossville TN

I don't know about your year's set-up, but my "Carb" line runs up to T in with the PCV valve on the rocker cover...then to the front base inlet on the carb.

May 6, 2008 | 05:56 PM

blckslvr79

Thread Starter

Drifting

Joined: Jan 2008

Posts: 1,962

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From: Schererville IN

Thanks for the responses.
I kinda guessed the bottom was probably a drain.
I'll hook the carb line up to my PCV line.
Thanks!

May 6, 2008 | 06:50 PM

I'm Batman

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From: Springfield MO

St. Jude Donor '07

The 79 shop manual should have a diagram of where those hoses go.

May 6, 2008 | 07:00 PM

Peterbuilt

Le Mans Master

Joined: Aug 2006

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From: mount holly NC

2025 c3 ('74-'82) of the Year Finalist - Unmodified

2019 C3 of Year Finalist (appearance mods)

Now I'm confused.

My 74 350 auto trans "T"'s with the EGR hose and is hooked to ported vacuum. Is this correct? PG.

May 6, 2008 | 08:42 PM

kansas123

Melting Slicks

Joined: Sep 2006

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From: Wichita Kansas

Quote:

Originally Posted by 7T1vette

I don't know about your year's set-up, but my "Carb" line runs up to T in with the PCV valve on the rocker cover...then to the front base inlet on the carb.

.........and the bottom is a drain