Kickdown Linkage for FMX

Cougar Community Classic Cougar Maintenance Restoration and Repair
1

Digging into some backlogged projects and the return spring on the kickdown linkage for my 1969 351W 2V FMX combo has been missing since I rebuilt the carb and it disintegrated into rust flakes. I’ve got the supposed replacement spring from NPD and by the part number in the manual it is correct, but when I put it on this is what it looks like, and this doesn’t seem quite right (black spring, big bend). Seems like it should be a shorter spring, or am I attaching it wrong? The print in the FSM is a little hard to discern.

2100 FMX Linkage.jpg
2100 FMX Linkage.jpg800×600 76.5 KB

2

It does seem to drive find, shift points are about right, kicks down when floored, occasional hard shifts but I’m guessing that’s mostly caused by this missing spring.
Does anyone have a picture of how this linkage should be laid out?


Thanks!

3

Should there not be a secondary back up spring on the throttle linkage?

4

Ford never did. NHRA rules in certain classes require one.

5

Yea, the throttle spring is correct per the diagrams in the manual, it’s just the kickdown spring that is giving me questions.

6

kellon302,
Couple of things,

  1. That spring does not bend like that
  2. I’m not sure you have the correct spring
  3. You are missing the dashpot and mtg bracket
    I have attached a couple of pictures showing the dashpot bracket and kickdown return spring for you as a reference.
    This is not your particular carb but should give you a better idea of how it is attached.
    Let me know if I can help you out any further.
    P1000945.JPG
    P1000944.JPG
    P1000946.JPG
7

Thank you for the tips, I just got a response from WCCC and they said it looks like the correct spring. I’ve found the dashpot online but it looks like I am short a bracket as well. Guess I’ll do some digging in the parts manuals and see what I can turn up.

8

Finally had some time to dig into the parts manuals. It does look like I should have a dashpot there as well as a different bracket that will presumably rectify the spring routing. I’l get the code off of the tag and that should help narrow down the part numbers

9

Got the appropriate bracket installed on the carb B8AZ 9B550-B but the spring is still way too long for where the linkage needs to sit. If anyone has a couple pictures or measurements on a properly setup linkage that would be really helpful!

Thanks!