Carburetor

Tiny
YAHSHUA
  • MEMBER
  • 1984 CHRYSLER LE BARON
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 189,000 MILES
Fast idle on a 1984 Chrysler LeBaron Town car won, t slow down.
Thursday, December 9th, 2010 AT 12:04 AM

6 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Look at the driver's side of the carburetor to see if there is still a silver or gold-colored metal cover held on with three rivets. Holler back when you have that info.

Caradiodoc
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Thursday, December 9th, 2010 AT 12:07 AM
Tiny
YAHSHUA
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Well, it looks like there may have been a metal tab at one time, a tab end held on by a single large rivet as far as I can see. There is a lot of hardware on that side though.
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Thursday, December 9th, 2010 AT 9:03 PM
Tiny
CARADIODOC
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If you can see all that stuff, the cover has been removed long ago. Three rivets had to be drilled out to remove it. If you look closely at them, you will see at least one of them has a 10mm nut under the remaining part of the rivet. Sorry, but I'm doing this from a tired, old memory. The one you're after, I seem to recall, is the one that's closest to the front of the car. Loosen that nut. That will allow you to rotate the curved adjuster for the automatic choke. I think you want to push it as far toward the rear of the car as possible to the end of its limit, then tighten the nut.

The thermostatic spring on this carburetor is so strong, it will raise cold idle speed without you having to tap the gas pedal to set the choke. Adjusting the choke will stop it from overloading causing black smoke out the tail pipe and fast idle speed will be lower and come down sooner.

Caradiodoc
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+1
Friday, December 10th, 2010 AT 2:16 AM
Tiny
YAHSHUA
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I will give this a try tomorrow, let you know. Thanks.
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Friday, December 10th, 2010 AT 5:16 AM
Tiny
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Well I finally loosened the arm holding a (what appears to be a neoprene) gear that runs along the top of the curved adjuster, shoved the adjuster forward all the way and let the neoprene gear ride the adjuster back. Seems to have slowed it down a good bit. Will keep playing with it some more as time permits. Thanks and any more advise will be greatly appreciated. My email addy is discipleofyahshua@inbox. Com feel free to contact me.
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Saturday, December 11th, 2010 AT 10:58 PM
Tiny
YAHSHUA
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  • 5 POSTS
I finally loosed the arm holding the neoprene grear on top of the adjuster arm and pushed the adjuster arm forward all the way, et the neoprene gear back onto the adjuster and let it ride it back, seems to have slowed it down a good bit. Thanks much, here is my email addy if you have anymore advice. Discipleofyahshua@inbox. Com
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Saturday, December 11th, 2010 AT 11:04 PM

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