tri power idle
Thread Starter
Instructor
Joined: May 2007
Posts: 228
Likes: 0
tri power idle
I have a 427/400 hp 69 with orginal linkage. I am having the secondary carbs getting gas at idle. Is there some secret way to keep the secondary trottle closed at idle. Car idles fine with both secondaries unhocked from primary..
Drifting
Joined: Nov 2002
Posts: 1,691
Likes: 206
From: Loveland, CO
The AIM manual describes an adjustment procedure.
The key is to get the end carbs closed at idle and not let them upset the mixture. I could not get mine to idle correctly until I worked on getting the end carbs closed. It's all in the linkage.
Ralph.
The key is to get the end carbs closed at idle and not let them upset the mixture. I could not get mine to idle correctly until I worked on getting the end carbs closed. It's all in the linkage.
Ralph.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Also, sometimes the end carb throttle plates leak a little air at the bore. There is a GM product (goop) to reduce this. Mine (sb) has lapped in brass plates and seals perfect.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
If you do have original linkage, they automaticly close the rear carbs when at idle. Its just a matter of removing the linkage clip and adjusting it correctly. Remove both end carb linkages. Adjust your center carb idle. Then adjust the linkages to drop into the hole on the end carbs.
Drifting
Joined: May 2006
Posts: 1,425
Likes: 0
From: Seattle Wash.
AIM = Assembly Instruction Manual. This is a must - have if you plan on doing any work on your car. While you're at it, pick up the Chassis Service Manual for your car. Both of these books will help you understand how to fix and replace everything on your car.
