View Single Post
  #9  
Old 08-06-2020, 02:42 PM
propuckstopper propuckstopper is offline
Senior Member
 
Join Date: Jul 2012
Location: Canada
Posts: 241
Default

Quote:
Originally Posted by Dick Boneske View Post
There's no way the airhorn screws would cause the problem you describe or change anything about the way the Tri-Power functions. With your symptoms, the first thing to do is turn both idle mixture screws in 1/2 turn at a time, checking for the "bucking" with each change in adjustment.

Access to those adj. screws is difficult, but a piece of 1/4" ID rubber hose makes a good tool for making the adjustment. Put a mark of some type on the hose so you know how much you're turning the screw. On the driver's side, if you have power brakes, access to the idle adj. screw is impossible unless you turn the brass fitting in the rear carb clockwise to provide clearance. You can easily turn it back after the problem is fixed.
Hi Dick. My apologies; I have been way from the forum for awhile. I have made up a sort-of-custom tool to set up the mixture screws. I have played around with them somewhat (using a vacuum gauge and tach to "guide" me), yet I still continue to get this annoying surging.

Any chance there could be moisture in the centre carb?

The car continues to idle great, and runs like crazy under acceleration....