brake return spring

Seeing as no one has responded yet...I'll give it a go. However, I'll have to wait till this evening to look at my '39.

I don't know if mine has the correct spring or not...I don't recall ever looking. I'll find out tonight. In the meantime, someone else might have the info.
 
If you have stock MC and pedal should be easy, but if you have after market brake pedal you will need to do some changes.
The rod to mc and the adjusting turn buckle with the pin.
If no nut put one on then get a piece of medal 1"x 1" /0r 1"x1"x2" drill hole and same size as rod and small spring hole. Then bend in shape of L then hook to some thing like trans housing. You will need something to put the spring to another piece of medal. After the floor is in check the piston gap at MC.
 
I don't know what George is talking about. Maybe he is adding another spring. On my Ford and my Linclons there is a notch on the pin that goes through the bottom of the pedal arm and the master cylinder push rod. One end of the spring goes around that notch. The other end goes into a hole in the frame.
 
IMG_0204.jpg

This is from a 1940 1-1/2 ton panel. I had trouble adding pictures so tried it one at a time. I have 2 more showing the rest of the spring. Holler if you need them.
 
Ok - took a look under my '39 Fordor Deluxe:

I've attached several pictures on what the connection on my car looks like. The spring is connected at the master cylinder end to a grooved boss on the clevis pin that goes through the master cylinder push rod. The other end attaches to the car by hooking through a hole in the crossmember forward of the master cylinder.

Pic 1 and 2 show the forward connection (one from inside the crossmember and one from the bottom).

Pic 3 shows the spring inside the crossmember (but doesn't show the ends well).

Pic 4 shows the spring connected to the clevis pin in the master cylinder push rod. Unfortunately, as you can see, my brakes have not been touched in a very long time (I won't say original but there's got to be 40+ years of grease buildup on the brake/clutch shaft housing that makes it hard to see the spring connection.

To give you a better idea of how the spring connects to the clevis pin, I've attached a picture of my '47 COE master cylinder and the brake spring (Pic 5). The connection method is identical and this picture doesn't have the grime my '39 does.

Hope this helps.

Dan
 

Attachments

  • Pic 1 - forward spring connection.jpg
    Pic 1 - forward spring connection.jpg
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  • Pic 2 - Forward spring connection (bottom).jpg
    Pic 2 - Forward spring connection (bottom).jpg
    29.7 KB · Views: 79
  • Pic 3 - Brake pedal spring - looking aft inside crossmember.jpg
    Pic 3 - Brake pedal spring - looking aft inside crossmember.jpg
    83.4 KB · Views: 80
  • Pic 4 - Brake spring connected to clevis pin on master cylinder push rod.jpg
    Pic 4 - Brake spring connected to clevis pin on master cylinder push rod.jpg
    111.3 KB · Views: 87
  • Pic 5 - Master Cylinder reference pic 06.jpg
    Pic 5 - Master Cylinder reference pic 06.jpg
    88.8 KB · Views: 96
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