brake drums
- Mike in Maine
- Posts: 188
- Joined: November 17th, 2004, 1:54 pm
- Body Type: 82B
- Model Year: 1931
- Location: Alfred, Maine
brake drums
Jan. '31 AA. Can cast iron drums be used in place of steel. If so, would there be an advantage to using cast iron?
- Neil Wilson
- Posts: 3062
- Joined: February 5th, 2003, 9:42 pm
- Body Type: 82-A/89-A
- Model Year: 1930
- Location: Boulder, CO
- Contact:
Mike,
All '30/'31 AA brake drums are the same (front and rear). The cast iron drums are an aftermarket and will work on any '30/'31 AA. I think that the cast iron dissipate the heat better than steel. And, some shops do not know the correct procedure to turn steel drums (slow is good).
All '30/'31 AA brake drums are the same (front and rear). The cast iron drums are an aftermarket and will work on any '30/'31 AA. I think that the cast iron dissipate the heat better than steel. And, some shops do not know the correct procedure to turn steel drums (slow is good).
Regards, Neil Wilson
______________________________________
aafords.com@gmail.com - use this email for contact
https://aafords.com/
______________________________________
aafords.com@gmail.com - use this email for contact
https://aafords.com/
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- Posts: 69
- Joined: June 11th, 2008, 4:28 pm
- Model Year: 1928
- Location: Vancouver, Canada
- Contact:
Re: brake drums
...which begs the question: will we ever see repro AA brake drums?
I'm about to buy a late 1931 LWB AA at a great price, and replacement brake drums are the only part that worries me.
While I'm voicing heresy....I wonder if Mitchell would ever do a syncro AA transmission?
I'm about to buy a late 1931 LWB AA at a great price, and replacement brake drums are the only part that worries me.
While I'm voicing heresy....I wonder if Mitchell would ever do a syncro AA transmission?
Re: brake drums
One rule of thumb on cast iron brake drums is to use composite (late model style) brake shoes. Woven Brake Shoes should only be used on the steel drums and composite shoes should only be used on cast iron drums.
The woven material works best on steel drums and allows all drums and brake shoes to dissapate heat evenly.
The composite shoes will hot spot with steel drums and will cause brake fade.
Cast iron drums with composite shoes work together to dissipate heat evenly.
Be sure to have the shoes arced to match the drum they will be working in. Don't mix and match shoes and drums unless the shoes are arced to match the drums. The AA will stop very nicely when the brake system is restored and adjusted to factory specs and tolerances.
This is true for the Model A cars & Trucks.
The woven material works best on steel drums and allows all drums and brake shoes to dissapate heat evenly.
The composite shoes will hot spot with steel drums and will cause brake fade.
Cast iron drums with composite shoes work together to dissipate heat evenly.
Be sure to have the shoes arced to match the drum they will be working in. Don't mix and match shoes and drums unless the shoes are arced to match the drums. The AA will stop very nicely when the brake system is restored and adjusted to factory specs and tolerances.
This is true for the Model A cars & Trucks.
- Chris Haynes
- Posts: 2203
- Joined: September 7th, 2003, 5:18 pm
- Body Type: 82A
- Model Year: 1930
- Location: Camarillo, CA
Re: brake drums
Will 1932/'33 cast iron BB drums fit on an a '30/'31 AA?
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- Posts: 69
- Joined: June 11th, 2008, 4:28 pm
- Model Year: 1928
- Location: Vancouver, Canada
- Contact:
Re: brake drums
From what I've read in 'The Early Ford V8 As Henry Built It', a great many AA parts wer continued in use until at least 1934.