New Holley Carb Won't Idle Down Enough! - Team Camaro Tech
Team Camaro Tech join team camaro
 
Camaro Parts at SS396.com     
GROUND UP & SS396.com         
Official Sponsor of Team Camaro
   

Auto Insurance



Registered users (free) do not see these large ads

Engine General Engine Discussion.

Reply
 
Thread Tools Display Modes
  #1  
Old Jun 8th, 07, 12:04 PM
bdzee bdzee is offline
Senior Tech

 
Join Date: Feb 2003
Posts: 336
Angry New Holley Carb Won't Idle Down Enough!

Just installed a 570 holley street avenger on my 68 327 engine and I could not get the idle down enough so I had to retard the timing down to 4 degrees to get the idle right. I had it previously set at around 10 to 12. Because of this the car is running a little hot and has a slight stumble when I first accelerate. The throttle plates are not sticking and no matter how far down I push the throttles to close and with the screw all the way out it would not idle down unless I turned the dizzy. Any suggestions?
__________________
68 convertible 327 Ralley Green, White top, Deluxe Ivory interior, powerglide with white bumblebee stripe
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old Jun 8th, 07, 12:18 PM
DjD's Avatar
DjD DjD is offline
Retired

Dennis
 
Join Date: Apr 1999
Location: San Jose, CA
Posts: 25,226
Default Re: New Holley Carb Won't Idle Down Enough!

Pull the carb and check the secondary throttle blades... Back the screw out until it isn't seated, then take out any clearence and tighten it about 1/4 turn.

Before that thought, it just came to me that my Avenger's fast idle was set too high. It adjusts under the choke area. Check the instructions, if I remember they say to turn it the wrong way in them...
__________________
...Dennis
www.camaroslimited.com

"Don't take life so serious, you won't get out alive..."
Reply With Quote
  #3  
Old Jun 8th, 07, 12:56 PM
Steptoe Steptoe is offline
Senior Tech

Steps
 
Join Date: Dec 2005
Location: New Zealand
Posts: 12,903
Default Re: New Holley Carb Won't Idle Down Enough!

Quote:
Pull the carb and check the secondary throttle blades
Yep...
If u get a rivet, hammer the end flat and square off, and put a 90 deg bend in it...as a small screw driver...
u can get at the sec adjustment screw, thats on the opposite side to the trottle, under the bottom edge of the carb....close it up (unscrew) till u get adjustment with the main idle stop screw and mixture screws.
Do not adjust so the sec are fully closed...when its like this the butterflys are hard ahainst the carb bores, this can cause jambing and sticking.
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tuning a Holley 650 Rich-Allen Troubleshooting 4 Feb 13th, 07 10:56 AM
holley carb advice??? 66SBCDUECE Performance 7 Oct 15th, 06 01:52 PM
Holley Carb set-up m_peterson6 Performance 23 Jan 8th, 06 09:11 AM
Holley carb gurus Gary L Engine 15 Aug 25th, 05 01:53 AM
Holley carb number 3205??? Nonni Tech 2002 4 Oct 20th, 02 06:21 AM


All times are GMT -7. The time now is 11:02 AM.



Camaros.net - Đ 2009 AutoForums.com