Author Topic: Removing excess powder coating from Brake Hub  (Read 739 times)

Offline McCabe-Thiele (Ted)

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Removing excess powder coating from Brake Hub
« on: March 16, 2024, 03:47:36 PM »
After doing a few household chores today I had half an hour to spare to look at building up the brake back plate with the brake shoes.
When I fitted the brake shoes there was no room for a washer between the shoes & the split pin - the original twin link item was missing so individual washers were used instead.

The powder coating appears to have raised the brake shoes both at the lever end and the pivot pins. As a result the brake shoes do not sit where they were before.

I do not have a Dremel tool so what is the easiest/best  way to remove the powder coating in the three affected areas. i.e. the brake shoe pins and the bottom lever actuator boss.

Is a Stanley knife blade likely to work (feels a tad dangerous) or do I use a small plastic cutting wheel in my electric drill?
« Last Edit: March 16, 2024, 04:04:52 PM by McCabe-Thiele (Ted) »
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Skoti

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Re: Removing excess powder coating from Brake Hub
« Reply #1 on: March 16, 2024, 04:18:55 PM »
Ted,

I would use an electric drill and a small grinding stone from my cheapo Lidl Powerfix milling/cutting/polishing tool set.

Same as this one currently offered on Fleabay:-

https://www.ebay.co.uk/itm/264785524889
Motorcycling is Life, anything B4 or after is just waiting...


1976 Honda CB750F1

Offline McCabe-Thiele (Ted)

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Re: Removing excess powder coating from Brake Hub
« Reply #2 on: March 16, 2024, 04:22:42 PM »
Looks a handly little kit thanks Skoit   - I've orderd one!
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Online Johnwebley

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Re: Removing excess powder coating from Brake Hub
« Reply #3 on: March 16, 2024, 04:33:52 PM »
I bought a rechargeable Chinese copy of dremel from Aliexpress,

Complete with tools,

Works great, for the amount I use it, can't fault it,


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Offline McCabe-Thiele (Ted)

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Re: Removing excess powder coating from Brake Hub
« Reply #4 on: March 16, 2024, 05:00:48 PM »
A Dremel type tool is probably something I should have bought over a thirty tears  ago when I was doing all my home DIY.

For how much I would use one today I can't justify the outlay - a recommended cheapo might be an option.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Online Johnwebley

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Re: Removing excess powder coating from Brake Hub
« Reply #5 on: March 16, 2024, 06:07:54 PM »
A Dremel type tool is probably something I should have bought over a thirty tears  ago when I was doing all my home DIY.

For how much I would use one today I can't justify the outlay - a recommended cheapo might be an option.
I think mine costs about £12 with assorted tools,

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Offline McCabe-Thiele (Ted)

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Re: Removing excess powder coating from Brake Hub
« Reply #6 on: March 16, 2024, 06:28:12 PM »
What was the make I'll take a look.👍
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline davidcumbria

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500/4 in 79. No bikes for 30 years. 750/4 in 2013, 550/4 in 2023. Also own  R1100GS, RD350LC YPVS , Triumph Street Triple, Yamaha XT250

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Offline McCabe-Thiele (Ted)

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Re: Removing excess powder coating from Brake Hub
« Reply #9 on: March 20, 2024, 11:03:26 AM »
My Von Haus tool arrived yesterday so I quickly made short work of removing the powder coating from the three affected areas.

On fitting the brake shoes again it was clear that there is still not enough room to fit even a thin washer between the split pin & brake shoes. I can only assume that the after market brake shoes do not allow for the fitting of a washer unless fitted a very thin washers with very very thin split pins.

As the rear brake worked previously I'm happy enough that the split pins will hold the brake shoes in place. On the plus side the new tool will come in handy for quite a few other jobs in the garage.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

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Re: Removing excess powder coating from Brake Hub
« Reply #10 on: March 20, 2024, 12:05:46 PM »
I found after market shoes are to wide at the pivot end,


I normally use a file to remove some alloy so the double washer and split pins fit,

Just care needed to get the shoes to fit square

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Offline McCabe-Thiele (Ted)

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Re: Removing excess powder coating from Brake Hub
« Reply #11 on: March 20, 2024, 12:16:02 PM »
Do you just file it from the top John or file a tad off either end?
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

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Re: Removing excess powder coating from Brake Hub
« Reply #12 on: March 20, 2024, 01:04:11 PM »
Only the pivot hole,

I took 0.5mm from both sides of the shoes

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Offline davidcumbria

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Re: Removing excess powder coating from Brake Hub
« Reply #13 on: March 20, 2024, 01:56:09 PM »
My Von Haus tool arrived yesterday so I quickly made short work of removing the powder coating from the three affected areas.
 On the plus side the new tool will come in handy for quite a few other jobs in the garage.
Use mine all the time Ted eg wire brush for cleaning up threads. Flexible drive shaft makes it easy to access tight areas and do fine work. The metal cutting discs you can get are great for quick jobs and much has been written about the plastic  polishing wheels recommended initially by Ken. You won’t regret getting one.
500/4 in 79. No bikes for 30 years. 750/4 in 2013, 550/4 in 2023. Also own  R1100GS, RD350LC YPVS , Triumph Street Triple, Yamaha XT250

 

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