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Topic: charcol canister

in Forum: C3 Body

charcol canister

Posted: 5/24/08 4:49pm Message 1 of 12
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fortlauderdale, FL - USA
Joined: 3/15/2004
Posts: 288
Vette(s): 1978 greenwood custom vette, 468 blower motor side pipes.
I found a pile of charcol under my car when I pulled out of the garage, what would cause the canister to lose its load? What is the effect on the engine ? and what do I need to do to replace ?Shocked
Thanks as always




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charcol canister

Posted: 5/24/08 6:17pm Message 2 of 12
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Temperance, MI - USA
Joined: 10/18/2004
Posts: 275
Vette(s): 1977 Corvette Orange T-Top 2003 50th Anniv. roadster
This sounds like a good one for Joel. But I'd put a newspaper on the garage floor till it's potty trained!!!
 
Sounds like the can rusted out and needs replaced.



charcol canister

Posted: 5/24/08 7:29pm Message 3 of 12
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Scott, with your current set-up, I think I'd just remove the canister all-together. It's prolly not doing anything but poopin on your floor anyway. It's main purpose is to filter fuel vapors, and hold them in the canister to be sucked back into the intake upon starting.

If you wish to keep it, you'll have to replace the canister. It's not re-loadable, as far as I know.

So...I assume you got that thing running again? How's it doing?


Joel Adams
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charcol canister

Posted: 5/24/08 8:30pm Message 4 of 12
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fortlauderdale, FL - USA
Joined: 3/15/2004
Posts: 288
Vette(s): 1978 greenwood custom vette, 468 blower motor side pipes.
Joel,
Thanks I guess I'll just disconnect it. Do I have to block off any lines? I have never really investigated the canister, do not know what is connected.
I blew two pistons, took them all out in my garage. No damage to the cyl walls. replaced all the rod bearings and threw it back together, it actually runs. Whadda  Ya know !
If I want the engine to run a little cooler should I advance the timing a little? When I first put everything back together I guess I had the timing too far retarded because the headers actually started to glow, scary stuff.




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charcol canister

Posted: 5/25/08 6:12am Message 5 of 12
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Franklin, IN - USA
Joined: 5/3/2008
Posts: 117
Vette(s): 1978 pace car replica

Good morning!  Beautiful day on this Indy 500 Sunday in Central Indiana.  I first started messing with the charcoal canister on our '78 pace car when I was getting fuel fumes in garage after we'd been out and about with the car.  I believe there are 5 different lines running to the can. 

After getting some suggestions from others I ended up changing the canister, all vacuum lines running to the engine and a piece connecting to the fuel tank line.  I also changed the gas cap.  I think the primary issue was cracking of the rubber hoses due to age.  No more gas fumes!
 
I think someone said at one time that you could change the charcoal in the can, but don't believe that this is possible.  I may be wrong on this.
 
Take care
GaryC - '78 PC replica #3359 with 163k+ miles



charcol canister

Posted: 5/25/08 7:38am Message 6 of 12
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fortlauderdale, FL - USA
Joined: 3/15/2004
Posts: 288
Vette(s): 1978 greenwood custom vette, 468 blower motor side pipes.
My can fell on the headers and it burnt a hole in the side, charcol all gone as well as one hose nipple broke. I want to bypass canister, how do I do this? Do the lines coming off the tank have to be vented? 



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charcol canister

Posted: 5/25/08 8:36am Message 7 of 12
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Greensburg, IN - USA
Joined: 9/24/2003
Posts: 5188
Vette(s): Previous: 1984 Silver / Charcoal Coupe, 1988 Maroon Coupe / 1989 Artic White Coupe / 2001 Speedway White Roadster / Present:1976 Stingray Black / Black, Auto, 350 slightly modified (355 hp) Luxor Wires Redline Tires. / 1989 Roadster Bright Red...
Hi Scott,

I don't have the C-Can in mine anymore. It was one of those unnecessary items under the hood once you start spending too much time at the Speed Shop.

I just plugged the line and have never noticed any ill effects.


charcol canister

Posted: 5/27/08 4:21am Message 8 of 12
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Oviedo, FL - USA
Joined: 9/8/2006
Posts: 267
Vette(s): 1977 t-top
Tux... No fumey smell in garage?


charcol canister

Posted: 5/27/08 6:49am Message 9 of 12
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Waterford, MI - USA
Joined: 9/13/2002
Posts: 1749
Vette(s): 1973 Red coupe
http://i213.photobucket.com/albums/cc149/Redwingvette/canister.jpg
You need to plug the vacuum lines at the motor. One line attaches to the PVC Valve the other attaches to the base of the carb.
If you plug the tank line you will need to get a vent gas cap.
Redwingvette2008-05-27 06:50:40


Brian - NCM Lifetime Member

73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
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charcol canister

Posted: 5/27/08 8:19am Message 10 of 12
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fortlauderdale, FL - USA
Joined: 3/15/2004
Posts: 288
Vette(s): 1978 greenwood custom vette, 468 blower motor side pipes.
I do not have a line from my pcv to the canister? How can I tell if my cap is vented?



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