Hi guys,

I have a question about adjusting the Automatic Choke Plate Clearance (Pull-down) and Fast Idle Cam Linkage on my carb.


The '66 workshop manual says to:


The automatic choke fast idle cam linkage must be properly adjusted before performing the choke plate clearance (pull-down) adjustment.

1. Insert a gauge pin or drill of the specified clearance (Part 10-8)
thickness between the throttle plate and the side of the throttle bore. Hold the throttle plate against the gauge pin or drill (Fig. 7). Close the choke plate and turn the fast idle screw inward until it just contacts the fast idle cam.

2. Place a drill or gauge of the same thickness as the specified clearance (Part 10-8) between the choke plate and the upper body wall (Fig. 8). Close the choke plate on the drill or gauge and hold it securely.

3. Close the throttle until the fast idle screw touches the fast idle cam. Adjust the plastic nut to just contact the swivel on the choke lever assembly.

At the top of the column on the carb specs page it mentions a 0.036" gauge. Down the column across from my carb it shows 0.130-0.150". I assume that a 0.036" gauge should be used first for the fast idle adjustment and then a gauge of 0.130-0.150" should be used to adjust the choke valve pull-down. Does anyone know if this is correct?

Thanks!

Paul

 

the FSM page 10-8 talks about the procedure. Essentially you set the throttle blade opening to 0.036 with the drill rod, close the choke plate all the way and set the fast idle cam screw to just touch the cam. while in this condition, open the choke plate and insert a .130-.150 rod for the choke plate air gap and then adjust the plastic nut to allow the fast idle can screw to just touch with the choke plate at the .130 dimension.

 

Outstanding!

Thanks so much for your help!

 

Any idea about the differences in the black plastic choke caps? Mine is marked "TO" on the outside....the workshop manual says mine should be a "TS". Thanks!

 

I have a 1966 Mustang Sprint 200 6cyl auto with a Autolight 1100 carburetor.

I set the timing and it helped it start and run much better.

The car starts and runs good when it is cold and the choke is closed.
As the engine runs and the choke starts to open the engine dies before the choke is open all the way.

I adjusted the screw at the base of the carburetor; that didn't make any difference.

What now?