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Author Topic: Re: 41211-323-000 plate (rear sprocket cover) cleaning.  (Read 962 times)

Offline McCabe-Thiele (Ted)

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« on: September 30, 2023, 02:45:28 PM »
Is there an easy way to remove the coating on my rear wheel sprocket cover at home?

Not sure tbh but I think it is Chrome but could be BZP would Harpic 10 remove the coating?

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Offline Trigger

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #1 on: September 30, 2023, 03:11:19 PM »
Get it blasted and powder coated black. They were black on the later 550's  ;)
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Offline AshimotoK0

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #2 on: September 30, 2023, 04:15:49 PM »
Quote from: McCabe-Thiele (Ted) on September 30, 2023, 02:45:28 PM
Is there an easy way to remove the coating on my rear wheel sprocket cover at home?

Not sure tbh but I think it is Chrome but could be BZP would Harpic 10 remove the coating?

Harpic won't touch it ... you need something like 40% strength sulphuric acid with  a bit of glycerine added and reverse plate it at about 10 amps in that acid with lead as the other electrode .. mainly to remove the nickel under the chrome. A chrome plater will also remove by reverse plating in the chrome bath and it's fairly cheap.
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Offline Laverdaroo

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #3 on: October 01, 2023, 11:33:09 AM »
What does the glycerine do Ash?
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Offline AshimotoK0

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #4 on: October 01, 2023, 11:55:42 AM »
Not sure but it's what all of the platers use. Sure Google will tell you Ted.
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Laverdaroo

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #5 on: October 01, 2023, 12:02:12 PM »
I’ll have a look, cheers Ash


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Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline McCabe-Thiele (Ted)

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #6 on: October 01, 2023, 03:12:56 PM »
Well my sprocket plate has been in "Flow Rust Remover" overnight, it has turned Yellowish in colour as has the solution that was  pink.



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Honda CB500 K1 (new pit dug out ready)
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Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline AshimotoK0

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #7 on: October 01, 2023, 03:27:23 PM »
Quote from: McCabe-Thiele (Ted) on October 01, 2023, 03:12:56 PM
Well my sprocket plate has been in "Flow Rust Remover" overnight, it has turned Yellowish in colour as has the solution that was  pink.
you have probably just converted the chrome layer.  It's the nickel that's hard to remove.
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline McCabe-Thiele (Ted)

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #8 on: October 01, 2023, 04:31:10 PM »
I have managed to remove two of the dents on the flat section  but the plate is off round near the outer rim curve   & I do not have the right tools to re-shape it.

Can't powder coat in as it is but could just paint it.
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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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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #9 on: October 01, 2023, 04:57:21 PM »
I sprayed mine with a can of hammerite smooth gold I had knocking around. Came out great but needed a good few days on a widow sill to fully cure. Can't see that much of it once sprocket is fitted.
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Offline McCabe-Thiele (Ted)

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #10 on: October 01, 2023, 07:08:27 PM »
Good point Dave I might do something similar.
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Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Laverdaroo

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #11 on: October 01, 2023, 10:03:50 PM »
Just not brown Ted!


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Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline Laverdaroo

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Re: 41211-323-000 plate (rear sprocket cover) cleaning.
« Reply #12 on: October 01, 2023, 10:04:07 PM »
…….or beige


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Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))
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