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Found my surging idle demon #1580661 02/18/14 04:27 AM 02/18/14 04:27 AM
Joined: Jan 2003 Posts: 889 Monroe, LA USA C Carsavior OP super stock
Carsavior OP super stock C Joined: Jan 2003 Posts: 889 Monroe, LA USA	65 New Yorker with a 413 and a Holley 600 carb. Car would idle up and down. Played with jetting, changed out power valve, block vacuum advance- all without any changes to the surging. Today I had the hood up listening to my surging beauty, Noticed I would hear a click right before it would idle up. Click-vroom. Click-vroom. Traced the sound to the- PCV valve. Pulled the valve, blocked the hose, and the surging stopped! Haven't run into a mystery PCV valve problem since the Plymouth Trouble Shooting contest years ago. Ordered a new valve online tonight. Hope that clears it up for good!

Re: Found my surging idle demon [Re: Carsavior] #1580662 02/18/14 12:22 PM 02/18/14 12:22 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: Hope that clears it up for good! I believe it will. You sure wouldn't suspect the PCV as the culprit for a vac leak & I've only ran into that once (it stuck wide open), tho the PCV is a controlled vac leak & from what I understand different ones have a different size orifice. live every 24 hour block of time like it's your last day on earth

Re: Found my surging idle demon [Re: RapidRobert] #1580663 02/18/14 03:12 PM 02/18/14 03:12 PM
Joined: Aug 2003 Posts: 43,129 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,129 Bend,OR USA	I like to use a PCV valve with a weak spring so it stays open anytime the motor is running Helps lean the idle out also in motors with big cams Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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