Re: {Chrysler 300} Cold start 300G

Several years ago, I was having a problem with my F shooting soot immediately after starting from a cold engine. I resolved the problem by turning the idle mixture screws in 1/4 turn. Take a look see at the attached photos of before and after the adjustment. The after adjustment photo (clean floor) was taken 24 hours after the before photo (dirty floor) was taken. I don't know if these adjustments had anything to do with it but after the adjustments, I drove the car to the Meet north of San Francisco and back home, about 1,000 miles total, and my overall trip mileage had improved by about 20% from 10.5 mpg to 12.5 mpg. I had never gotten more than 10.5 mpg in all my travels to places like Phoenix, Sacramento, Denver, etc.

Richard-

The shop manual and the F supplement contain exact instructions for setting up the carbs and linkage on an F or G. If you have had them off the car than you should start at the beginning and follow the instructions to the letter. Nothing has changed in 61 years to render the instructions written for Chrysler techs inapplicable today. Its the same car and we should be doing the same things!

Sooty exhaust is an overly rich choke setting depending upon how much soot. If the car doesn't make it out to the road for high speed runs expect sooty exhaust. Two carbs feed a lot of gas into that 413, it won't be happy loafing around town.

Pull the plugs and read them. That will tell you something about your carb adjustments. then follow Mother Mopar's procedures.

Danny Plotkin

-----Original Message-----
From: "RICHARD HUSS" <rhuss214192@xxxxxxxxxxx>
Sent: Thursday, February 17, 2022 7:58am
To: "'Keith Langendorfer' via Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} Cold start 300G

I rebuilt the carbs and the car runs great. (a little soot at start) but is cord natured. if it sits overnight it takes a few cranks to get fuel back in the carbs. What am i missing in the carb setup? A choke setting? I cant find any articles or videos on how to set up the older Carter Carbs. Thanks Richard

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