AC brakes ?

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Topic author
Nv Bob
Posts: 775
Joined: Mon Jan 07, 2019 11:04 pm
First Name: Bob
Last Name: Middleton
* REQUIRED* Type and Year of Model Ts owned: 18 roadster 1810 brand X
Location: Western nv

AC brakes ?

Post by Nv Bob » Sat Dec 21, 2019 10:43 pm

Ok had a set around here and just put them on a car
Had add a spacer bolt to get the bottom shoe away from the drum.
As i move the lever forward it contacts on drum but in releasing it doese completely free up until wheel is turned is this normal
Also the showe adjusmt nuts are missing i had one that looks right but need suggestion for a matched set
Would an aircraft ensa bolt work??
Attachments
20191221_142409.jpg

User avatar

Mark Gregush
Posts: 4948
Joined: Sat Jan 05, 2019 1:57 pm
First Name: Mark
Last Name: Gregush
* REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1920 Dodge touring, 1948 F2 Ford flat head 6 pickup 3 speed
Location: Portland Or
MTFCA Number: 52564
Board Member Since: 1999

Re: AC brakes ?

Post by Mark Gregush » Sun Dec 22, 2019 1:08 am

I think your release problem may be because the springs are mounted wrong see this posting and there should be a return spring to pull the lever back when the brakes are released. (?)
http://www.mtfca.com/discus/messages/59 ... 1468453589
I know the voices aren't real but damn they have some good ideas! :shock:

1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup

User avatar

CudaMan
Posts: 2373
Joined: Fri Jan 04, 2019 4:17 pm
First Name: Mark
Last Name: Strange
* REQUIRED* Type and Year of Model Ts owned: 1924 Cut Off Touring (now a pickup)
Location: Hillsboro, MO
MTFCA Number: 30944
MTFCI Number: 23667
Board Member Since: 2013

Re: AC brakes ?

Post by CudaMan » Sun Dec 22, 2019 8:49 am

The picture in the thread that Mark posted is of my original installation of my brakes. I have since shortened the lower spring to give more even braking action between the upper and lower parts of the brake band. I also added a couple of supplementary release springs that act directly on the lever, see the attached pic. The spring in the picture turned out to be too strong for my liking, so I replaced it later with a weaker spring.

Just experiment with different springs until you get a good compromise between brake release and pedal effort.

The late Jack Daron recommended using old valve springs as return springs, they are a bit stronger and will give better release action. I have not tried his idea yet. :)
Attachments
IMG_0355.jpg
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)


Topic author
Nv Bob
Posts: 775
Joined: Mon Jan 07, 2019 11:04 pm
First Name: Bob
Last Name: Middleton
* REQUIRED* Type and Year of Model Ts owned: 18 roadster 1810 brand X
Location: Western nv

Re: AC brakes ?

Post by Nv Bob » Sun Dec 22, 2019 1:33 pm

Mark there is no room for a spring on bottom side and still use the back leverage keeper bolt at the outside end of the car
So i rig up a return spring as suggested on the lever now levers are set up for cables not sure why most everything I read says to covert to steel rods

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