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Old 05-08-2010, 04:43 PM   #1
Fred K-OR
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Default Model A Brake adjustment

On the old barn, someone had a method of adjusting brakes using a stick between the brake pedal and the front seat. Can someone put that info on the new barn? I need to adjust my brakes and I lost the print out I had for that info.

Thanks
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Old 05-08-2010, 05:24 PM   #2
Michael in Sedona
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Default Re: Model A Brake adjustment

Fred,

if you have Les Andrews first Model A Mechanics Book, it covers it in there and has photos. I make the notched stick like he explains, and it works really well.

Michael
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Old 05-08-2010, 06:19 PM   #3
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Default Re: Model A Brake adjustment

Hi Fred, I've made a brake "tool" (stick) using an old 1x4 I had lying around and it worked on my 29CCPU just like Les Andrews said. It butts up against the seat front and the brake lever get pushed down one notch at a time during the adjustment process. Measure twice cut once
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Old 05-08-2010, 07:14 PM   #4
Fred K-OR
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Default Re: Model A Brake adjustment

Man, I guess the old eyes are getting bad. I looked through Andrews book one and did not fiind it. I will put the old byfocals on again and give it another try. I have made the stick which I used awhile back but had lost the instructions on how to use it.

Thanks guys.
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Old 05-08-2010, 07:21 PM   #5
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Default Re: Model A Brake adjustment

Hey, I found it!!!!! The old eyes did mess me up. First time I didn't bother to look in section 2. But there it was.
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Old 05-09-2010, 12:55 AM   #6
Dave in Boise
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Default Re: Model A Brake adjustment

I was taught a way to do this by a senior member of our club..

After fully inspecting the shoes, pins, springs, actuator pins, wedges, etc we put the a up on blocks and made sure the wheels could spin freely. We then made sure that the brake pedal would travel all the way back to full up, checked for play in the brake shaft and pin.. if all was good, we would wedge the brake pedal up from the floor at full "off"

We then tightened all the brake adjust wedges to full on (about 35 ft lbs of torque tight I'd guess.

We then pulled the brake rods and made sure there was about 10#'s of tension on them at "rest" and adjusted them for length as needed to have just the right amount of tension to pull them back onto the clevis links when reassembling the lines back onto the components

We then reattached the rods and readjusted the wedges (backing off just until you could not hear the brake rubbing)

Once adjusted, run it down a gravel road and hit the brakes.. You should get pretty much all of them to lock.. Adjust the wheels individually until you are having equal drag lines in the dirt left to right and try for about 60% of the slide in the front.

This seems to work really well and I trust my brakes in traffic now ..

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Old 05-09-2010, 03:31 PM   #7
Fred K-OR
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Default Re: Model A Brake adjustment

Thanks Dave. Will give it a try. I live on a gravel road so have a good testing ground.
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Old 05-09-2010, 04:16 PM   #8
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Default Re: Model A Brake adjustment



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Old 05-09-2010, 06:04 PM   #9
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Default Re: Model A Brake adjustment

My original tech article and drawing is now posted on our club website.
http://vtmodelaford.org/sbam.pdf
The original Restorer Article can be found in the April 1994 issue.
It can also be found as stated in Les Andrew’s first book under adjustments. In a later book he modified the method so the front drums lock first. This later method is counter to the original Ford adjustment and design. I do not recommend the method of adjusting the front drums to lock before the rears.

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Old 05-09-2010, 07:02 PM   #10
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Default Re: Model A Brake adjustment

Thanks guys for the ideas.
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Old 06-26-2014, 08:48 AM   #11
Stephen Cohen
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Default Re: Model A Brake adjustment

Help I have a early Model A Ford with split brake system I need a service book to adjust them Mac's does not have anything on them

Stephen
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Old 06-26-2014, 10:33 AM   #12
Bob C
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Default Re: Model A Brake adjustment

You need the Service Bulletins. http://www.amazon.com/Service-Bullet...vice+bulletins

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Old 06-27-2014, 06:20 AM   #13
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Default Re: Model A Brake adjustment

Model A brake geometry is best left the way Ford engineered it. Adjusting so that front brakes apply first is unwise.

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