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Falcon 67 brakes

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Falcon 67 brakes

Post  TonyC on Sun May 20, 2018 12:41 pm

Hi folks, I have just completed assembly of a 1954 Falcon 67.
All good except for the brakes. The rear one is not to bad but the front is useless.
I have new bonded shoes fitted that I got with the bike. They are I believe 20+ years old. Can anyone offer any advise, or are new and better shoes available.
Thanks, Tony
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Brakes

Post  piston 197 on Sun May 20, 2018 12:54 pm

Possibly not contacting drum correctly, suggest marking them all over with engineers blur or even a marker pen, then applying the brakes a few times to check the contact .
It might be necessary to measure the drum and then to mount the brake plate in a lathe to turn the shoes to drum diameter, with clearance ( wear a mask )
JH
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67 brakes

Post  alan67 on Sun May 20, 2018 1:03 pm

Hi Tony   firstly bike looks great  ,,   i was just writing the very same thing as John but he beat me to it Alan
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Falcon 67 Brakes

Post  TonyC on Sun May 20, 2018 1:28 pm

Thanks chaps. I will remove the wheel and check linings tomorrow.
TonyC
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Falcon brakes

Post  keith.hodgenia on Mon May 21, 2018 4:25 pm

Did you centralise the backplate?
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Falcon Brakes

Post  TonyC on Mon May 21, 2018 4:55 pm

keith.hodgenia wrote:Did you centralise the backplate?

Hi Keith, Not quite sure what you mean by centralise the back plate. when you assemble the front drum it centralises itself.
I did do what John suggested and marked the linings and found they were only touching on a few places. I have sanded them down a bit and they seem to have improved. I think a good run will help bed them in.
Thanks to all for the advice.
Tony.
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centralising brake

Post  piston 197 on Mon May 21, 2018 5:02 pm

To centralise the brake plate slack off the lock nut and wheel nuts, pull the brake on hard and hold it on, while doing up the lock nut and wheel nuts.
If the central hole in the brake plate is a tight fit on the spindle this may not achieve much ?
JH
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Falcon Brakes

Post  TonyC on Mon May 21, 2018 5:11 pm

Thanks John I will try that tomorrow, I don't think there was much of a gap when sliding the back plate over the shaft.
TonyC
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Falcon Brakes

Post  TonyC on Wed May 23, 2018 9:44 am

Hi all, Thanks for your input. I checked the spindle and back plate and all looks ok.
Got the wife to squeeze the lever while I tightened up, not sure if it made any difference. I need to use it and then check again to see if there any high spots.
TonyC
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Re: Falcon 67 brakes

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