Author Topic: Refurbishing Exhaust Flange Clamps?  (Read 1763 times)

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Offline ZTatZAU

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Refurbishing Exhaust Flange Clamps?
« on: November 20, 2023, 09:25:09 AM »
Looking for suggested methods for the best way to clean-up / refurbish these exhaust flange clamps!



Ultrasonic?  Carb Cleaner? Electrolysis?  Evapo-Rust?  Wire wheel?
What works best?  And in what sequence?

Thanks!  ZT

Offline craz1

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #1 on: November 20, 2023, 09:37:09 AM »
Degrease them and try Evaporust
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Offline ZTatZAU

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #2 on: November 20, 2023, 09:43:06 AM »
Degrease them and try Evaporust

Thanks Craz1, I appreciate your reply?

Anyone else have a favorite tried and true method?

ZT

Offline calj737

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #3 on: November 20, 2023, 10:18:18 AM »
The plating is damaged. So any method of bringing them back to clean, bare steel will be. Required first step. Personally, unless you are going to replate them using a DIY electro plating method, I’d simply use some high heat spray paint or powder coat in a cast aluminum color and call it a day.

Short of a concours restoration, electro plating is a lot more trouble than it’s worth for a “rider” bike. Clean them, protect them, and enjoy the bike. Lots of other bikes to restore and ride…
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Offline Tracksnblades1

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #4 on: November 20, 2023, 10:30:40 AM »
The plating is damaged. So any method of bringing them back to clean, bare steel will be. Required first step. Personally, unless you are going to replate them using a DIY electro plating method, I’d simply use some high heat spray paint or powder coat in a cast aluminum color and call it a day.

Short of a concours restoration, electro plating is a lot more trouble than it’s worth for a “rider” bike. Clean them, protect them, and enjoy the bike. Lots of other bikes to restore and ride…

+1, the chrome plating is gone, I’d follow 737 advise.

Or you could buy new pretty and pricey ones….
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Offline BenelliSEI

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #5 on: November 20, 2023, 03:04:50 PM »
High temp paint or $28 each at vintagecb750.com

Offline Don R

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #6 on: November 20, 2023, 04:54:15 PM »
 I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.
No matter how many times you paint over a shadow, it's still there.
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Offline HondaMan

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #7 on: November 20, 2023, 07:35:18 PM »
I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

What did he charge? I have 8 or 12 of them I'd like to renew for future builds.
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Offline BenelliSEI

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #8 on: November 20, 2023, 09:08:04 PM »
I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

This little stack was Cdn.$1600!

What did he charge? I have 8 or 12 of them I'd like to renew for future builds.

Two fenders, two rims, two speedo/tach plates. Cdn.$1600.
« Last Edit: November 21, 2023, 09:37:14 AM by BenelliSEI »

Offline ZTatZAU

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #9 on: November 21, 2023, 08:11:41 AM »
Thanks everyone!
Your advice is well taken.
ZT

Offline grcamna2

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #10 on: November 21, 2023, 08:25:02 AM »
I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

Don,I've been looking for "chrome engine paint" for years;you know,the type that shines.. I used to get it decades ago,but can not find it anymore.
I've had to settle for flat aluminum Duplicolor engine paint.  ::) it's not the same.
Can you give me any info whether you can still get the 'chrome paint' which isn't just flat aluminum/silver engine paint ? Did you purchase it locally and confirm it is what they advertise ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Johnie

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #11 on: November 21, 2023, 11:10:33 AM »
Like Don I have had very good luck with a 6 inch wire wheel and no paint. They turned out very good.
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Offline Don R

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #12 on: November 21, 2023, 12:45:25 PM »
I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

What did he charge? I have 8 or 12 of them I'd like to renew for future builds.
I think it was over $300 and that was ten or more years ago. The Chrome Shop, Rock Island Illinois. https://www.thechromeshop.com/
« Last Edit: November 21, 2023, 12:47:32 PM by Don R »
No matter how many times you paint over a shadow, it's still there.
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Offline MauiK3

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #13 on: November 21, 2023, 12:46:40 PM »
Electrolysis or vinegar will get into places the wire wheel can’t. Have to watch vinegar, it’s slow but keep checking. I once shrunk a steel bolt with it, it wasn’t critical so no harm.
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Offline BenelliSEI

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #14 on: November 21, 2023, 01:38:08 PM »
I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

Don,I've been looking for "chrome engine paint" for years;you know,the type that shines.. I used to get it decades ago,but can not find it anymore.
I've had to settle for flat aluminum Duplicolor engine paint.  ::) it's not the same.
Can you give me any info whether you can still get the 'chrome paint' which isn't just flat aluminum/silver engine paint ? Did you purchase it locally and confirm it is what they advertise ?

I can still get this locally. Dupli-Color CS101 Chrome Spray Enamel……

Offline grcamna2

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #15 on: November 21, 2023, 01:52:09 PM »
I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

Don,I've been looking for "chrome engine paint" for years;you know,the type that shines.. I used to get it decades ago,but can not find it anymore.
I've had to settle for flat aluminum Duplicolor engine paint.  ::) it's not the same.
Can you give me any info whether you can still get the 'chrome paint' which isn't just flat aluminum/silver engine paint ? Did you purchase it locally and confirm it is what they advertise ?

I can still get this locally. Dupli-Color CS101 Chrome Spray Enamel……

Yes,I see the Duplicolor CS101.
John,do you know if it will be resistant to engine heat ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline BenelliSEI

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #16 on: November 21, 2023, 03:01:30 PM »
I've had really good luck with a soft wire wheel and then chrome engine paint in between the fins. Those are pretty toasty looking though. 
 My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

Don,I've been looking for "chrome engine paint" for years;you know,the type that shines.. I used to get it decades ago,but can not find it anymore.
I've had to settle for flat aluminum Duplicolor engine paint.  ::) it's not the same.
Can you give me any info whether you can still get the 'chrome paint' which isn't just flat aluminum/silver engine paint ? Did you purchase it locally and confirm it is what they advertise ?

I can still get this locally. Dupli-Color CS101 Chrome Spray Enamel……

Yes,I see the Duplicolor CS101.
John,do you know if it will be resistant to engine heat ?

I’ve used it on a few “quick fixes” but never on anything that hot. I usually use it on the rear brake steady bar and pull rod.

Offline Don R

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #17 on: November 21, 2023, 03:51:05 PM »
 I've always been able to get some chrome showing on the outer fins and just used the silver paint to cover the rusty area inside. Even "chrome" paint still appears silver to me.
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline grcamna2

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #18 on: November 21, 2023, 05:00:09 PM »
I've always been able to get some chrome showing on the outer fins and just used the silver paint to cover the rusty area inside. Even "chrome" paint still appears silver to me.

I was also able to do a clean up,then spot it with paint.
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline Nightshift

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #19 on: November 24, 2023, 06:42:05 AM »
Quote
<snip>My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

This little stack was Cdn.$1600!
Two fenders, two rims, two speedo/tach plates.

BenelliSEI, curious to know what plater are you using? I have some stuff that I need done. Bill
Can someone update me a what's offensive today? It's really hard to keep up!

Offline BenelliSEI

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #20 on: November 24, 2023, 06:54:10 AM »
Quote
<snip>My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

This little stack was Cdn.$1600!
Two fenders, two rims, two speedo/tach plates.

BenelliSEI, curious to know what plater are you using? I have some stuff that I need done. Bill

Bill….. you will like my answer, you can probably visit them; Cambridge Custom Chrome. Good people and they do spectacular work. I shopped all over Ontario, Quebec and even a few US States. Cambridge had the best (or equal too) pricing and they were not too far away. It was at the height of COVID so I posted them my stuff and they sent it back a few months later. Full price matched their quote and the work is absolutely flawless. If you are planning on plating stuff you can buy new, just order new. Plating costs way more!! Those six pieces were for my Sandcast project and unique to that bike………
« Last Edit: November 24, 2023, 06:55:57 AM by BenelliSEI »

Offline Magpie

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #21 on: November 24, 2023, 09:41:51 AM »
I was skeptical of "chrome" paint so I soaked some old exhaust clamps in Evaporust  and gave them a coat of Duplicolor chrome paint. I compared them to my stock ones and they look pretty good and close to original. As commented before they do look a bit silver too but for a rider they will do fine for me.


Offline Nightshift

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #22 on: November 24, 2023, 10:13:57 AM »
Quote
<snip>My chrome guy advised me it's often cheaper to buy new or better used than paying for chrome plating. I explained to him it was a rolled rear rim and they are going for a grand on ebay. He smiled and said OK then. It came out nice.

This little stack was Cdn.$1600!
Two fenders, two rims, two speedo/tach plates.

BenelliSEI, curious to know what plater are you using? I have some stuff that I need done. Bill

Bill….. you will like my answer, you can probably visit them; Cambridge Custom Chrome. Good people and they do spectacular work. I shopped all over Ontario, Quebec and even a few US States. Cambridge had the best (or equal too) pricing and they were not too far away. It was at the height of COVID so I posted them my stuff and they sent it back a few months later. Full price matched their quote and the work is absolutely flawless. If you are planning on plating stuff you can buy new, just order new. Plating costs way more!! Those six pieces were for my Sandcast project and unique to that bike………

Thanks. I was wondering if you were using Cambridge Chrome or not. I've used them before on my C2 Corvette restoration for things like bumpers, etc. I agree ... show quality chrome but in my view at the top end of the price scale. There are smaller local platers in London close to me but the wait is long to get them back (longer than CCC). Cheers, Bill

ps ... nice sandcast by the way!
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Offline BenelliSEI

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #23 on: November 24, 2023, 12:06:00 PM »
I was skeptical of "chrome" paint so I soaked some old exhaust clamps in Evaporust  and gave them a coat of Duplicolor chrome paint. I compared them to my stock ones and they look pretty good and close to original. As commented before they do look a bit silver too but for a rider they will do fine for me.



Those look very nice! Will be just fine for my K6. Will give it a shot.

Offline grcamna2

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Re: Refurbishing Exhaust Flange Clamps?
« Reply #24 on: November 24, 2023, 12:40:03 PM »
I was skeptical of "chrome" paint so I soaked some old exhaust clamps in Evaporust  and gave them a coat of Duplicolor chrome paint. I compared them to my stock ones and they look pretty good and close to original. As commented before they do look a bit silver too but for a rider they will do fine for me.



Cliff,will those nice looking painted ones hold-up to the heat ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.