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Idle Problem

  • RumRunner
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25 Jan 2020 22:04 #39400 by RumRunner
Idle Problem was created by RumRunner

I've noticed that my Cord 812 S/C Beverly "hunts" for a steady idle. I'm not a carburetor guy, so not certain how to diagnose and fix. Carburetor is the original unit. When driving the car it runs fine ... just a problem at idle. I've included a link to a YouTube video that I posted where you can hear exactly what I'm talking about:

1937 Cord 812 Hunting for Idle

Any help would be appreciated.


1937 Cord 812 Beverly S/C
1974 Glen Pray 866 Auburn Speedster
1927 Buick Riviera Boattail
The following user(s) said Thank You: Jonathan Richards

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26 Jan 2020 02:32 #39401 by 1748 S
Replied by 1748 S on topic Idle Problem
It probably is the idle circuit in the carb. The two adjustment screws in the base can change that by screwing them in or out. Getting them balanced takes some talent. When did this start happening? I do NOT feel its the mechanical advance in the distributor. An easy possible fit is to try tightening the four base nuts that holds the carb to the supercharger.

Gary Parsons

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  • mikespeed35
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26 Jan 2020 06:06 #39405 by mikespeed35
Replied by mikespeed35 on topic Idle Problem
Rich idle circuit, vacuum leak??

Mike Huffman

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