The Ford Barn

motordr · 02-24-2015, 01:19 PM

How critical is the length of the brake adjusting shaft A-2042? I would think that both sides on each backing plate should be equal, so what would be an acceptable variation in length?
I plan to use woven linings that are bonded to the shoe, is there any history of the bond not holding?

tbirdtbird · 02-24-2015, 01:38 PM

They should be the same length.
For some reason the 'pointed edge' (really the forging line where the 2 dies come together) is usually worn down making it hard for the adjusting cone to 'click' properly.
I usually dress the 2 slanted surface on a grinding wheel. At the same time i use a dial caliper to check the length and grind as needed so that I have pairs of equal length; else you will not have even application of the shoes. A very easy task actually.

Not sure how well the bonding process would work with woven linings. Why take a chance? Riveting them on is not hard, and works very well.

Tom Wesenberg · 02-24-2015, 01:42 PM

I've never seen a bonded shoe come off while a car is in service, but my Corvair was parked for a year or so and the bonded linings came off.

tbirdtbird · 02-24-2015, 01:56 PM

Tom, I have seen bonded shoes fail in service. it ain't pretty

Mitch//pa · 02-24-2015, 02:01 PM

Quote:

Originally Posted by tbirdtbird

Tom, I have seen bonded shoes fail in service. it ain't pretty

i have also,,,
plus the bonded linings cob web / heat crack due to lack of heat dissipation

motordr · 02-25-2015, 07:42 PM

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Anyone know the factory tolerance on the length of the brake adjusting shaft?

02-24-2015, 01:19 PM	#1
motordr Senior Member Join Date: Nov 2010 Location: Beamsville,Ontario,Canada Posts: 523	Brake Adjusting Shaft A-2042 How critical is the length of the brake adjusting shaft A-2042? I would think that both sides on each backing plate should be equal, so what would be an acceptable variation in length? I plan to use woven linings that are bonded to the shoe, is there any history of the bond not holding?

02-24-2015, 01:38 PM	#2
tbirdtbird BANNED Join Date: May 2012 Location: inside your RAM Posts: 3,134	Re: Brake Adjusting Shaft A-2042 They should be the same length. For some reason the 'pointed edge' (really the forging line where the 2 dies come together) is usually worn down making it hard for the adjusting cone to 'click' properly. I usually dress the 2 slanted surface on a grinding wheel. At the same time i use a dial caliper to check the length and grind as needed so that I have pairs of equal length; else you will not have even application of the shoes. A very easy task actually. Not sure how well the bonding process would work with woven linings. Why take a chance? Riveting them on is not hard, and works very well. __________________ '31 180A Last edited by tbirdtbird; 02-24-2015 at 01:56 PM.

02-24-2015, 01:42 PM	#3
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Brake Adjusting Shaft A-2042 I've never seen a bonded shoe come off while a car is in service, but my Corvair was parked for a year or so and the bonded linings came off.

02-24-2015, 01:56 PM	#4
tbirdtbird BANNED Join Date: May 2012 Location: inside your RAM Posts: 3,134	Re: Brake Adjusting Shaft A-2042 Tom, I have seen bonded shoes fail in service. it ain't pretty __________________ '31 180A

02-25-2015, 07:42 PM	#6
motordr Senior Member Join Date: Nov 2010 Location: Beamsville,Ontario,Canada Posts: 523	Re: Brake Adjusting Shaft A-2042 Sponsored Links (Register now to hide all advertisements) Anyone know the factory tolerance on the length of the brake adjusting shaft?