The factory fix for this is as follows from the 3rd ed of the 2.2/2.5
FWD Speed Secrets book:
2.2L Carburetor Charcoal Particle Protection Filter (P4286797)
The charcoal canister is sealed. The carburetor vents fuel vapors into
the canister to be purged back into the air cleaner/carburetor when
the engine is running., See Figure 3-96. In rallying, the car takes a
serious beating and can pound the canister so hard that the charcoal
inside disintegrates into very small particles. Now these particles
can be pulled into the carburetor when the engine is running. The
charcoal particles in the carburetor tend to plug the jets and other
metering orifices to the point that the engine will hardly run.
Insert these filters from/ /this package between the canister and the
carburetor with the arrow on the filter pointing toward the carburetor
as shown in the figure. It is recommended that the filters be changed
after each "rough" rally.
The hoses used in this system are specially manufactured and if
replacement becomes necessary it is important to use only fuel
resistant hose.
Regular clear plastic filters seem to work OK as well.
Let me know if you want me to scan the figure for you.
Dennis L. Cote
Delhi, CA
From: [EMAIL PROTECTED]
Subject: SD> help with carb problems
Help! I'm still having trouble with my carb on my 83 1/2 carbed SC. Have
spent tons getting it rebuilt and readjusted. Ran fairly decent over summer but
now as cold weather hits, it wants to stick on fast idle all the time. I've
tried all the usual fixes. I know these carbs were bad, even when new, and I
don't have a ton of money to buy a lot of new stuff ... so any body have any
help for this old guy who just loves my SC but gets weary of these carb
problems!
Thanks! Larry Dentler
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: SD> help with carb problems
Content-Type: text/plain
This may be a long shot, but when I had an 83 Charger about 150 years ago, I had a tendency to overfill the gas. This would get fuel in the charcal cannister. That would somehow (and I don't remember how) get charcal pieces in the carb and screw it up. I even got a new cannister way back then and had a mechanic at the dealership ask if I knew why the cannister went bad. I said, "Yeah, from overfilling the tank". (topping it off) He said "exactly"! In your rebuilds, did you ever notice any little chunks of charcal? Have you ever overfilled the tank? A long shot, but I thought I'd tell you about my experience.
Good Luck.
Bob Doherty http://amoparx.net/mnsdacpic/mnsdac.htm
Coon Rapids, MN.
-------------- Original message --------------
From: [EMAIL PROTECTED]
> Help! I'm still having trouble with my carb on my 83 1/2 carbed SC. Have
> spent tons getting it rebuilt and readjusted. Ran fairly decent over summer but
> now as cold weather hits, it wants to stick on fast idle all the time. I've
> tried all the usual fixes. I know these carbs were bad, even when new, and I
> don't have a ton of money to buy a lot of new stuff ... so any body have any
> help for this old guy who just loves my SC but gets weary of these carb
> problems!
>
> Thanks! Larry Dentler
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: SD> help with carb problems
Add a fuel filter on the line from the carb to the charcoal canister.
Honestly, the carbs aren't very well cast and tend to warp just in usual use.
The only real solution is to move to a better carb or fuel injection
(megasquirt FTW!)
Good luck, Stefan
-------------- Original message ----------------------
From: [EMAIL PROTECTED]
> This may be a long shot, but when I had an 83 Charger about 150 years ago, I had
> a tendency to overfill the gas. This would get fuel in the charcal cannister.
> That would somehow (and I don't remember how) get charcal pieces in the carb and
> screw it up. I even got a new cannister way back then and had a mechanic at the
> dealership ask if I knew why the cannister went bad. I said, "Yeah, from
> overfilling the tank". (topping it off) He said "exactly"! In your rebuilds,
> did you ever notice any little chunks of charcal? Have you ever overfilled the
> tank? A long shot, but I thought I'd tell you about my experience.
> Good Luck.
>
> Bob Doherty http://amoparx.net/mnsdacpic/mnsdac.htm
> Coon Rapids, MN.
>
> -------------- Original message --------------
> From: [EMAIL PROTECTED]
>
> > Help! I'm still having trouble with my carb on my 83 1/2 carbed SC. Have
> > spent tons getting it rebuilt and readjusted. Ran fairly decent over summer
> but
> > now as cold weather hits, it wants to stick on fast idle all the time. I've
> > tried all the usual fixes. I know these carbs were bad, even when new, and I
> > don't have a ton of money to buy a lot of new stuff ... so any body have any
> > help for this old guy who just loves my SC but gets weary of these carb
> > problems!
> >
> > Thanks! Larry Dentler
> > 83 1/2 Shelby Charger
> > 89 Shelby Dakota
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