Re: [Chrysler300] 413 stuttering

["Bob Haag" <Scooter465@xxxxxxx>]

I had a simaliar problem with a fresh rebuilt Carter Thermoquad rebuilt by Holly Corp.
To get to the point if the pump bore is worn and has a smooth shiny surface you can get a week pump spray.
I removed the top of carb and removed check valve plug at the bottom and shure enough the bore was shiny probably from the plating process they used when they rebuilt it.I took some polishing paper and roughed up the bore it should be like a freshly honed cylinder in a engine. 
This got rid of the stumble and provided a solid steam of fuel through the whole throttle range.
Hope this helps.

Bob Haag
  ----- Original Message ----- 
  From: 2HsandaHeritage@xxxxxxxxxxx 
  To: Chrysler 300 Club International 
  Sent: Thursday, July 14, 2011 1:03 PM
  Subject: [Chrysler300] 413 stuttering


    


  Hi Group, 

    

   My 62 Sport has a 413 with a single Carter AFB. 

  The Carter AFB has recently been rebuilt. 

  When starting from a dead stop the engine "stutters" for a few seconds and then performs like new. 

  I had the same problem prior to having the AFB rebuilt. 

  If I "hit the gas" harder at start up there is no "stutter" and the "stutter" seems to get slightly worse when the engine reaches operating temperature. 

  The automatic choke appears to be operating correctly. 

  Thanks in advance for your help, 

  Doug Warrener 

  Fair Oaks, CA

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