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05-14-2021, 08:02 PM | #1 |
Junior Member
Join Date: May 2021
Posts: 25
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two Model A questions
1. I got a 12 to 6v voltage reducer but my Sparton horn doesn't have any leads from the motor. How are the leads connected?
2. I'm beginning a brake job on my '31, front looks sorta straightforward. I have no idea how to access the main shoes on the rears? How do I re-do the rear brakes?? |
05-14-2021, 08:56 PM | #2 |
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Join Date: May 2010
Location: St Charles , Missouri
Posts: 1,998
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Re: two Model A questions
You will need to remove the emergency brake arm on the backing plate and remove the 4 nuts from the backing plate and e-brake plate removing the emergency brake carrier plate To access the service brakes.
Remove the wedge on all 4 backing plates by screwing in and it will force out the caps. It make take a tap on the end to get them out. A full comprehensive brake job includes rebuilding all shafts levers pins roller tracks, drums preferable to cast iron and shoes fit to the drums. Brakes are one of my specialties and are not as simple as most think. Don’t forget rods and Clevises . After comprehsive rebuilding including cross shafts proper adjustment is key as well. This isn’t something you get done in a day. I do many and cooking at it it’s 40 hours give or take. Larry Shepard Last edited by larrys40; 05-15-2021 at 10:24 PM. |
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05-14-2021, 09:11 PM | #3 |
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Join Date: May 2010
Location: So Cal
Posts: 8,750
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Re: two Model A questions
Here's the horn wiring.
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05-14-2021, 10:02 PM | #4 |
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Join Date: May 2010
Location: PASADENA, CA
Posts: 1,884
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Re: two Model A questions
Buy a copy of the Les Andres "Model A Mechanics Handbook" Vol. #1. He has a very good set of instructions on rebuilding the brakes.
Like "larrys40" said, there is a lot to rebuilding the brakes but if done correctly, Model A brakes are actually quite good. Chris W. |
05-14-2021, 10:12 PM | #5 |
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Join Date: May 2010
Location: Portland, Oregon
Posts: 5,906
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Re: two Model A questions
"if done correctly"
That’s the most important factor.
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Ray Horton, Portland, OR As you go through life, keep your eye on the donut, not the hole. |
05-14-2021, 11:01 PM | #6 |
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Join Date: Sep 2019
Location: Fort Gratiot, Michigan
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Re: two Model A questions
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05-15-2021, 08:20 AM | #7 |
Junior Member
Join Date: May 2021
Posts: 25
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Re: two Model A questions
Thanks
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05-15-2021, 08:23 AM | #8 |
Junior Member
Join Date: May 2021
Posts: 25
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Re: two Model A questions
Thanks!
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05-15-2021, 09:26 AM | #9 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,431
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Re: two Model A questions
The original horns are series wound so they can be connected either way for function. The grounding part comes from the light switch group where the wire travels up inside the steering shaft to the horn button. The power side is connected directly to the cut out so it will have full generator output. The horn wire terminals fit into the two brass clips as in the photos of the horn. The photo on post #3 appears to be soldered direct to the clips but that's not the way they were originally done.
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05-15-2021, 09:29 AM | #10 |
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Join Date: Dec 2017
Location: Guthrie, OK
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Re: two Model A questions
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05-15-2021, 09:58 AM | #11 |
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,897
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Re: two Model A questions
Is your wire horn reducer (resistor to drop the voltage) the small one with a socket on one end and a plug on the other or the larger one that mounts on the frame? If it is the first variety it will mount in the horn, just plug one of the wires into the socket and the other into the brass spring connectors. This is the easy one to use but it will get too hot if you honk the horn continuously for a few minutes. The one that mounts on the frame will allow you to honk continuously but you will need to break into the wiring that comes from the light switch at the end of the steering box or the wire coming from the generator (alternator).
Regarding the brakes, when you get the parking (emergency) brakes removed you can remove the backing plates by removing the 4 bolts. The same goes for the front brakes. You can remove the backing plates. Send all the parts, including drums, to someone who rebuilds brakes and you will get back ready to install brakes. Just bolt the backing plates back onto the axles and put the remaining parts back on. You will have to adjust the brakes, but the hard work will have been done and you can be assured that the rebuild was done correctly.
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A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. Last edited by nkaminar; 05-15-2021 at 10:10 AM. |
05-15-2021, 12:55 PM | #12 | |
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Join Date: Oct 2010
Location: Gregory, MI
Posts: 20
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Re: two Model A questions
Quote:
BRAKES 1. www.flatheadted.com Flathead Ted's 2. No known website: Steve's (Sturim) Antique Auto Repair (616) 538-0441 (Michigan) Then I googled 'Steve's (Sturim) Antique Auto Repair' and found this web page. https://stevesantiqueautorepair.com/ It looks like I am finally going to get my brakes fixed. |
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05-15-2021, 01:39 PM | #13 |
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,897
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Re: two Model A questions
Mikes has complete kits either rebuilt or new. I think some of the other vendors offer the same.
https://www.mikes-afordable.com/category/1039.html Macs has complete new assemblies https://www.macsautoparts.com/
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A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. |
05-17-2021, 10:11 AM | #14 | |
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Join Date: Jul 2011
Location: Redondo Beach, CA
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Re: two Model A questions
Quote:
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05-17-2021, 01:04 PM | #15 |
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Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,115
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Re: two Model A questions
Randy Gross is the "go-to guy" when it comes to brakes. I have his brakes on my pickup and am very pleased with not only the quick service, but the price as well.
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Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
05-17-2021, 01:43 PM | #16 | |
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Join Date: Jan 2020
Location: SF Bay Area
Posts: 1,075
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Re: two Model A questions
Quote:
There are no wires coming from the horn to connect to. Rather, the wires from the wiring harness slip behind the "ears" on the copper contacts on the horn itself. Attached photo may help. There's no polarity on these connectors. The horn should properly "ahooga" regardless of which direction the armature rotates. JayJay
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