Tag: Brake Drums

Found the Cause of the Noise on Left Hand Lock on the 1929 Model A Sport Coupe

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There has been a recirculating grinding type noise coming from the Model A on hard left hand locks since we changed the brake back plates.

Simon and I set off on a road test to pinpoint the noise and Simon nailed it!

The noise was coming from the right hand rear wheel.

After removing the wheel and hub/drum assembly we found a couple of issues.

  1. The back plate and brake drum had been rubbing
  2. The brake shoes have a raised metal edge and this has been rubbing on the inside of the brake

The brake shoe issue was alleviated by grinding the metal edge off the brake shoes

Once this was achieved the drum was placed in the lathe and a small amount of material removed to ensure that the drum and back plate were no longer  in contact.

A final road test confirmed that the diagnosis was correct and the treatment had been a success!

Here’s some photos of the work carried out

Removing material from the brake drum
Removing material from the brake drum
Removing material from the brake drum
Removing metal edge from the brake shoes
Metal filings inside brake drum
Brake Drum with evidence of contact
Metal filings inside brake drum
Brake Drum with evidence of contact

 

Roadster Update

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My friend John is restoring a Model A Roadster, I poped over the night to check on his progress.

The frame has been powder coated and a number of ancillaries have been refitted, it looks great , I’m very jealous!

He also had an old frame that he’s breaking for parts, the frame had a juice brake set up, so I am going to buy the front drums as they’ll match my 1948 setup on the Sport Coupe.

John's Model A Roadster
John's Model A Roadster
Model A Chassis
John's Model A Roadster

 

Brake Issues Mounting Up!!

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I’ve got the following issues with the right hand rear brake

  • Shoes down to the rivets
  • Hold down broken
  • Handbrake cable pipe rusted
  • Adjusters seized and rusted
  • Bleed nipples missing from wheel cylinders due to backplates too near to suspension

Expecting more grief from the rest of the “upgrades” to the braking system 🙁

 

39-41 Ford Rear Brakes
39-41 Ford Rear Brakes
39-41 Ford Rear Brakes
39-41 Ford Rear Brakes

Rear Brakes & Axle Shafts

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Took a first look at my rear hubs, brakes & axle shafts this weekend, learned a lot 🙂

Learned that the rear axle shafts had been shimmed, also learned that this is pretty common practice 🙂

Learned that the rear shoes need some attention, along with the backplates and hardware.

Happy that I was able to remove the hubs with my three legged puller, and I need a different castellated nut for the OSR (I think?? )

Got some useful info from the H.A.M.B. always 🙂

NSR Axle Shaft With Shims
NSR Axle Shaft With Shims
Offside Rear Brakes
OSR Brake Drum
OSR Brake Drum
OSR Axle Shaft With Shims
Rear Hub
Rear Hub & Keyway
NSR Brakes
NSR Brakes
NSR Brakes