Rocky mountain brake question
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
FATMAN
Topic author - Posts: 1697
- Joined: Sat Jan 19, 2019 9:28 am
- First Name: ROBERT
- Last Name: BERGSTADT
- Location: LOVES PARK IL
Rocky mountain brake question
On the original Rocky Mountain brakes for 1909-25 are the cast drums a lot heavier and one piece compared to the repro's, Bob
-
Mark Gregush
- Posts: 5370
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
- Last Name: Gregush
- * REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1948 F2 Ford flat head 6 pickup 3 speed
- Location: Portland Or
- Board Member Since: 1999
Re: Rocky mountain brake question
The illustration in "The Model T Ford Owner" sure looks like one piece, but is not large enough to tell if thicker. Murray does not go into much detail.
I know the voices aren't real but damn they have some good ideas! 
1925 Cut down pickup
1948 Ford F2 pickup
1925 Cut down pickup
1948 Ford F2 pickup
-
FATMAN
Topic author - Posts: 1697
- Joined: Sat Jan 19, 2019 9:28 am
- First Name: ROBERT
- Last Name: BERGSTADT
- Location: LOVES PARK IL
Re: Rocky mountain brake question
these have more of a squared off drum and very heavy, Bob
-
Original Smith
- Posts: 3699
- Joined: Tue Jan 08, 2019 10:43 am
- First Name: Larry
- Last Name: Smith
- * REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
- Location: Lomita, California
- MTFCA Life Member: YES
Re: Rocky mountain brake question
I have five set's of original Rocky Mountain Brakes. The drums were stamped steel, and a stock T brake drum was riveted to that I assume, either correctly or incorrectly that the original lining was softer than what is currently available, and probably did the job. I have cast iron drums on my cars, and am using old stock lining. How old is anyones guess.
-
CudaMan
- Posts: 2531
- Joined: Fri Jan 04, 2019 4:17 pm
- First Name: Mark
- Last Name: Strange
- * REQUIRED* Type and Year of Model Ts owned: 1924 Cut Off Touring (now a pickup)
- Location: Hillsboro, MO
- Board Member Since: 2013
Re: Rocky mountain brake question
Here are some pictures of my RM drums, they are stamped and riveted like Larry described.
I have since removed the hideous red paint and painted them black.
I have since removed the hideous red paint and painted them black.
- Attachments
-
-
-
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
-
DanTreace
- Posts: 3813
- Joined: Sun Jan 06, 2019 10:56 am
- First Name: Dan
- Last Name: Treace
- * REQUIRED* Type and Year of Model Ts owned: ‘12 open express,'23 cutoff, '27 touring
- Location: North Central FL
- Board Member Since: 2000
- Contact:
Re: Rocky mountain brake question
Original R-M adv. stating the large double drum is pressed steel.
The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
-
Mindless Automaton
- Posts: 125
- Joined: Mon Jan 07, 2019 1:47 am
- First Name: Kep
- Last Name: Kerensky
- * REQUIRED* Type and Year of Model Ts owned: 23 truck, 26 bug
- Location: Northland
- Board Member Since: 2011
Re: Rocky mountain brake question
My cast drums are much heavier. Much higher thermal capacity for reduced brake fade.
-
Original Smith
- Posts: 3699
- Joined: Tue Jan 08, 2019 10:43 am
- First Name: Larry
- Last Name: Smith
- * REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
- Location: Lomita, California
- MTFCA Life Member: YES
Re: Rocky mountain brake question
Here is the straight information. I lived not far from the man who made the original RM brakes. He had the right idea, but that is all. He didn't do research like I do, and so wound up with a hodge podge like you see today. After a couple of years making the hodge podge, he decided to copy some AC brakes that were on a friends '26 roadster, but still didn't have a clue as to what was connected to the brake pedal. All of these errors are still being made today, and although they work are not even close to the original design. It took me quite a few years to determine what Rocky Mountain did, but now I know, and am pleased with what they did. I have other friends that will back me up on this.
-
FATMAN
Topic author - Posts: 1697
- Joined: Sat Jan 19, 2019 9:28 am
- First Name: ROBERT
- Last Name: BERGSTADT
- Location: LOVES PARK IL
Re: Rocky mountain brake question
This is the set I just got in with the collection of cars
they might be new but wish they were original let you judge
drums are 1 pc cast
Bob
they might be new but wish they were original let you judge
drums are 1 pc cast
Bob
- Attachments
-
-
-
-
-
-
DanTreace
- Posts: 3813
- Joined: Sun Jan 06, 2019 10:56 am
- First Name: Dan
- Last Name: Treace
- * REQUIRED* Type and Year of Model Ts owned: ‘12 open express,'23 cutoff, '27 touring
- Location: North Central FL
- Board Member Since: 2000
- Contact:
Re: Rocky mountain brake question
Bob
That set is the older reproduction of the Rocky Mountain, made in the 60's I think. Real nice repro.
If you read the detail caption on the right hand side of this instruction sheet that came with these reproduction, states the drum is machined from cast ductile iron. Those are a desirable set of rear brakes for the small drum T axle!
That set is the older reproduction of the Rocky Mountain, made in the 60's I think. Real nice repro.
If you read the detail caption on the right hand side of this instruction sheet that came with these reproduction, states the drum is machined from cast ductile iron. Those are a desirable set of rear brakes for the small drum T axle!
The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
-
Original Smith
- Posts: 3699
- Joined: Tue Jan 08, 2019 10:43 am
- First Name: Larry
- Last Name: Smith
- * REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
- Location: Lomita, California
- MTFCA Life Member: YES
Re: Rocky mountain brake question
Here is the band adjusting cam used on real Rocky Mountain brakes, and is important for alignment.
-
Original Smith
- Posts: 3699
- Joined: Tue Jan 08, 2019 10:43 am
- First Name: Larry
- Last Name: Smith
- * REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
- Location: Lomita, California
- MTFCA Life Member: YES
Re: Rocky mountain brake question
Look closely at the photo Dan posted of an original ad. They say Rocky Mountain Steel Products, L.A. The first series reproductions don't say that. Each band has two cams riveted to the band. If someone was serious about installing them, they could be made. Everything from the rear end to the front is Bennett, and were not designed to work with a true Rocky Mountain brake.