Carbon canister

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Snake

Snake

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Does anyone have a pic of how to hook all the lines from the carbon canister to the carb and egr.I plan on useing the 2 barrel for this year.The smog police are cracking down big time.318 2 barrel, 74 Duster had all the smog stuff on it when i got it,but being stupid as i am i throw out a canister and the line from the tank to the canister,but have everthing else.
 
Well this is what I have,i have 3 lines so far work out the big 1 goes to the canister,one goes to the egr and the outher goes to the bottom front of the carb but were does the outher ones go to.
 

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Snake said:
Does anyone have a pic of how to hook all the lines from the carbon canister to the carb and egr.I plan on useing the 2 barrel for this year.The smog police are cracking down big time.318 2 barrel, 74 Duster had all the smog stuff on it when i got it,but being stupid as i am i throw out a canister and the line from the tank to the canister,but have everthing else.
Click to expand...

Is Ontario implementing an Air Care or emission testing for cars now? Is it an annual emissions test that is required to get insurance? How are smog police cracking down? BC had "Air Care" for 20+ hrs but finally got rid of it last year. :burnout:
 
Im gonna go by memory here;
None of the canister ports go to the EGR system. These are totally separate systems.
The canister has to be matched to the system. There were two or three different numbers of ports on the canisters.
Mopes of this era had a decal on the underside of the hood detailing all the vacuum hook-ups.
IIRC 73ups had a 3-port canister system. One port was hooked to the fueltank vent line. Another was hooked to the carb floatbowl vent, and the last was hooked to a venturi vacuum source. I seem to recall the hose sizes all being different and also seem to remember the canister ports being marked.Marked with a single letter, indicating their path. Further, I seem to recall the highest port was for venturi vacuum.This port went to the carb well above the throttle plates, in the venturi bore.I don't see that nipple on your carb.It was brass and near to the vacuum advance port, and you could see it protruding into the passenger venturi, as you looked down the carb bore.
The EGR valve was operated by a ported manifold vacuum source at the front of the carb. But it was delayed by at least one thermo-valve, near the top of the rad.I believe that hose with the white stripe was the source.Stretch it out towards the passenger side of the rad, there should be a thermo valve there.
That valve on the side of the aircleaner, IIRC was called NOX, and plumbed into the vacuum advance line,and it too may have run through a thermo valve,in the water jacket, on the intake, close to the stat-house.
That last nipple on the underside of the aircleaner, routes to the firewall-side of the carb to a port there on the drivers side.
I may have the thermo valves reversed in my head;but I think not.

Looking at your carb; the one going out sideways goes to the vacuum advance system.
The white striped one goes to the EGR system.
The remaining fat-boy,I think it's PCV. IDK.
I do not see a nipple for the carburetor bowl. Some systems stored the vapors in the filter housing, in which case you would have a 2-port canister, or the 3rd port could be capped.

Again, all from memory
You might have to reread this post, as I edited it several times as I remembered more details.
 
H22A4 said:
Is Ontario implementing an Air Care or emission testing for cars now? Is it an annual emissions test that is required to get insurance? How are smog police cracking down? BC had "Air Care" for 20+ hrs but finally got rid of it last year. :burnout:
Click to expand...

IF your car has a canister and egr they have to be hook up,a buddy got pulled over last year he had nothing and they fined him 3 fraction he has to fix or up to 5 grand each in fines if he caught this year.
 
AJ/FormS said:
None of the canister ports go to the EGR system. These are two separate systems.
The canister has to be matched to the carb. There were 2-port systems, and 3-port systems.
Mopes of this era had a decal on the underside of the hood detailing all the vacuum hook-ups.
IIRC 73ups had a 3-port system. One port was hooked to the fueltank vent line. Another was hooked to the carb floatbowl vent, and the last was hooked to a venturi vacuum source. I seem to recall the hose sizes all being different and also seem to remember the canister ports being marked.Marked with a single letter, indicating their path. Further, I seem to recall the highest port was for venturi vacuum.This port went to the carb well above the throttle plates, in the venturi bore.
Click to expand...
Thanks for your help,but I am one of thoes guys that needs picture to get it ,sorry.i did see on the breather 1 goes to the carb witch rubber line and 1 goes to the dist advance and then there is 1 under the breather.
 
A Canadian 74 is getting punked for smog? Yikes, that doesn't sound good....even in the socialist progressiveness of California, its 75 or older...Venturi vacuum is like ported vacuum, its above the butterfly and increases with velocity. I bet the distributor advance is the port/venturi vacuum source but that sounds like it should be a closed system, no huge leak sucking through a charcoal can? The breather lead must be the vent to the can so it can bring fresh air into can to displace the fuel vapor thats getting sucked into venturi port. here is a 75, maybe itll help:
MD876.jpg
 
pishta said:
A Canadian 74 is getting punked for smog? Yikes, that doesn't sound good....even in the socialist progressiveness of California, its 75 or older...Venturi vacuum is like ported vacuum, its above the butterfly and increases with velocity. I bet the distributor advance is the port/venturi vacuum source but that sounds like it should be a closed system, no huge leak sucking through a charcoal can? The breather lead must be the vent to the can so it can bring fresh air into can to displace the fuel vapor thats getting sucked into venturi port. here is a 75, maybe itll help:
MD876.jpg
Click to expand...

That helps some but the line from the egr goes to the top of the rad, the bottom front line goe to the rad as well.Me thinking why the hell did buy a 74 I should of stuck to 67-72 cars.
 
I think something something is different between Snakes system and the diagram.
The diagram appears to be for a Lean-Burn, and I don't see the computer mounted to the aircleaner house.
Oh sorry, fine-print says 75 :(
 
AJ/FormS said:
I think something something is different between Snakes system and the diagram.
The diagram appears to be for a Lean-Burn, and I don't see the computer mounted to the aircleaner house.
Oh sorry, fine-print says 75 :(
Click to expand...

Thatssssssssss ok Bro,ya its not the lean burn,but i do wish it would burn.:D
 
If you want to know how it all was without any guesswork, get a copy of the CHRYSLER factory service manual for that year. It shows every vacuum diagram for every possible engine combination. Federal, California, high-altitude, etc.

I don't have a copy for that year or I would provide it, but there's only 3 vacuum-related subsystems on those.

1. Charcoal canister. 1 vent line from the tank which is a hard metal line, 1 rubber vent line to the vent on the carb airhorn, and one rubber purge line which goes to a vacuum fitting on the front baseplate of the carb. Your carb appears to not have a bowl vent, so you have the tank vent line, the purge line to the base of the carb and the CARB port on the canister is capped off with a rubber cap.

2. EGR. Very simple. One line runs from a ported vacuum source on the carb up to the coolant temp switch on the radiator tank, out of the switch and back to the egr valve on the intake beside the carb. The temp switch is to prevent the egr from functioning when the engine is cold. That's the two thin lines with one connected to the bottom front of the carb. One should have a white stripe on it. Originally they ran along the upper rad hose and were secured to the hose with a metal band.

3. OSAC valve on the side of the air cleaner. Orifice Spark Advance Control. All it is, is a valve that momentarily delays the advance signal to the distributor. The smog-device haters claim it reduces performance. On a mid-70's 318 performance is already reduced and I've never noticed a difference with it in place or bypassed. One port is marked CARB...guess where that goes. The other port is marked DIST...guess where THAT one goes.

4. The thing on the underside of the aircleaner with two ports is the thermo switch for the flap in the snorkel of the air cleaner. one side gets fed manifold vacuum vacuum, the other goes to the flapper valve.

Good luck, it's not quite rocket science:D
 
Snake, you should be able to download the FSM for free. Ask Del (67Dart273) about it. He can tell you where to get it. That will have everything you need to be able to hook it up right.
 
Would the "underhood sticker" not show the routing etc?? Look for repop sticker for that car/engine.
Whether Del is talking to you or not, YOU are gonna have to either download that manual for free from mymopar, or cough up $$ for a paper version. Its a must have, no excuses.
 
4spdragtop said:
Would the "underhood sticker" not show the routing etc?? Look for repop sticker for that car/engine.
Whether Del is talking to you or not, YOU are gonna have to either download that manual for free from mymopar, or cough up $$ for a paper version. Its a must have, no excuses.
Click to expand...

The car was strip of paint stickers, and repaint.ok Dad
 
Snake said:
IF your car has a canister and egr they have to be hook up,a buddy got pulled over last year he had nothing and they fined him 3 fraction he has to fix or up to 5 grand each in fines if he caught this year.
Click to expand...

That sucks. Sounds like your buddy was one of the very few who get nailed since I doubt there is a well informed/educated smog police that knows what/how each car manufacturer was doing to comply with federal emmission standards between '71 and '76. Best bang for the buck for the smog police would be to hit the car shows and that'd be it.
 
H22A4 said:
That sucks. Sounds like your buddy was one of the very few who get nailed since I doubt there is a well informed/educated smog police that knows what/how each car manufacturer was doing to comply with federal emmission standards between '71 and '76. Best bang for the buck for the smog police would be to hit the car shows and that'd be it.
Click to expand...

Just last year they show up at our local cruze night sniffing around,did not bug me any I had the 69 Dart,ha.Now its a hole new ball game.
 
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