Re: [Chrysler300] Idle speed adjustment question

[kmaniak@xxxxxxx]

Mike:

 

I know this may sound like a silly question, but...

 

Did you check the timing first to verify that it hasn't retarded since the last time you checked it?  The last time one of my K's refused to idle at a stoplight and I had to employ the "one foot on the gas and one foot on the brake" procedure, I discovered the timing chain had skipped a tooth.

 

Chris the K MANIAC

-----Original Message-----
From: Michael Moore <mmoore8425@xxxxxxx>
To: Listserver Chrysler Club <Chrysler300@xxxxxxxxxxxxxxx>
Sent: Sat, Apr 19, 2014 3:43 pm
Subject: [Chrysler300] Idle speed adjustment question

 

I just spent an exasperating half an hour adjusting, (or trying to adjust,) the idle speed on my carbs.

The problem I am trying to eliminate is the engine dying at stop lights unless I keep a foot on the gas and one on the brakes.

Out of gear, the idle speed fine except the transition form hs idle to curb idle is pretty raggedy. 

I have been following the factory service manual procedure which calls for  initial one turn open on idle bypass screws and one to two turns open on the idle mixture screws. I can get the engine idling at 650 and each idle mixture screw seems to be at max rpm.  But when the car goes into gear, it dies. I've been increasing idle speed up to 800, but it still struggles in gear at a stop. 

Is it too lean?

I am guessing unscrewing the mixture screws ought to richen it  up. 

Should the bypass screws be so open as to have audible hissing from the intakes? 

Thanks, 

   Mike Moore

300H

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