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12-03-2020, 12:36 PM | #1 |
Senior Member
Join Date: May 2010
Location: albany
Posts: 466
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Brake shoe grinder
Anyone familiar with ford rotunda shoe arcing grinder? It doesnt use a drum like the aamco machines.
It looks like it uses adhesive sanding disks much like a belt/ disk sander. Would like a value for it if possible. Thanks |
12-03-2020, 01:31 PM | #2 |
Senior Member
Join Date: Jul 2014
Location: Iowa
Posts: 1,634
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Re: Brake shoe grinder
About the only places that still arc (grind) brake shoes is a shop that specializes in truck brakes. If there is one in your area, they might give you a "ballpark" value.
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12-03-2020, 03:34 PM | #3 |
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Join Date: May 2010
Location: on the Littlefield
Posts: 6,159
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Re: Brake shoe grinder
I bought a Barrett brake doktor, they arc the shoes to axle centerline on the car with a disc sander,the first one I paid 12$ but it only had one adapter, the second one I paid 250$, it had all the adapters and new sanding discs and I considered it a steal
Post pictures of what you are looking at. |
12-03-2020, 07:40 PM | #4 |
Senior Member
Join Date: Oct 2015
Location: Socal
Posts: 795
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Re: Brake shoe grinder
Yup. We'd all like to see what you're looking at......
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12-05-2020, 12:13 PM | #5 |
Senior Member
Join Date: May 2010
Location: albany
Posts: 466
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Re: Brake shoe grinder
Sorry for crappy pics. 5300D94C-221F-48E0-8CC9-0A74C65742D0.jpeg
8F1ED747-E295-4210-81AA-609BE307DE70.jpeg |
12-05-2020, 10:55 PM | #6 |
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Join Date: Mar 2012
Location: Addison,ll.
Posts: 454
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Re: Brake shoe grinder
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12-06-2020, 01:44 AM | #7 |
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Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,779
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Re: Brake shoe grinder
You may not need a shoe grinder! After turning a drum, the new shoes will likely be high at the center of the shoe ( the shoe 'rocks' in the drum). Stand the shoe up on the floor or a block of wood and whack the shoe in the center of the lining with a dead blow hammer. Check the fit in the drum and repeat as necessary. You want the shoe to still touch in the center but just rock a little bit; about 1/32"-1/16" inch gap as I remember. This is because the shoe flexes as the brakes are applied. If you setup the shoe with 100% contact, most of the braking pressure is concentrated at the ends of the shoe and the middle portion of the lining is not going to do much. Allowing for the flex of the shoe makes for better brakes, whether you re-arc with a grinder or the mallet. Just set the gap the same on all the shoes for even braking.
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12-06-2020, 08:18 AM | #8 |
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Join Date: Sep 2014
Location: Wiscasset, Maine
Posts: 1,981
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Re: Brake shoe grinder
Good info 40 Deluxe!
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12-06-2020, 01:17 PM | #9 |
Senior Member
Join Date: May 2010
Location: albany
Posts: 466
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Re: Brake shoe grinder
Ok thanks. I think its going in my swap meet pile.
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12-06-2020, 01:38 PM | #10 |
Senior Member
Join Date: May 2010
Location: Kerrville, Tx
Posts: 2,769
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Re: Brake shoe grinder
jetmek, I have one just like yours. It works great. You can get adhesive backed sanding disks from HF.
I don’t have a value for it. I found mine scrapped and froze up. The wiring was disconnected and I was afraid to plug it in. I used an extension cord as stood back. It is the smoothest running machine I have ever seen. When unplugged, it takes forever to quit turning. It is almost silent. |
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