SOHC.co.uk Forums > CB750

Finned exhaust clamps cleaning up & replating?

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hairygit:

--- Quote from: AshimotoK0 on September 24, 2018, 10:58:01 AM ---
--- Quote from: kevski on September 24, 2018, 10:38:01 AM ---You would be better off sourcing new ones, this would be a cheaper option, they would still end up rusting quite quickly though as the fins shield the recesses during plating and the underlying nickel remains very thin and chrome is not waterproof.

--- End quote ---

Agree ..it's about fifty quid to get a set of 4 re-chromed.

--- End quote ---
How about asking Philpotts if they would do them? The hardchrome they use on forks is not quite as shiny as say that on exhaust downpipes/silencers, but it is very hard wearing.

Sent from my X6pro using Tapatalk

martin_uk:
I have had them zinc plated or nickel plated which is normally much cheaper than chroming

Rozabikes Tim:
Just a thought. I had a DOHC CB750  and had the whole motor plastic coated, which included the clamps (similar style). The cases and head were black and the block silver. I had no issues with the finish or engine performance even with a pretty heavily tuned motor. I appreciate this is probably not your answer unless you simply want practicality....

Would the ceramic coatings people use on exhausts work? Lots of colours available.


Tim

flatfour:
Every couple of years I take the exhaust rings off the bikes and, after masking up the polished areas where the retaining studs pass through, paint them with high temperature aluminium paint. This looks fine (at least to me, much better than rust!) and usually lasts through two riding seasons. The areas that remain polished seem to go quite well with the painted finish.

Spitfire:
I had mine re chromed and to be fair they lasted a lot of years but one went rustier than most, so I bought a new NOS one and it was as bad as the one that I wanted to replace, so I now do the same as flatfour, the rusty parts get a clean up and then the High temp Aluminium paint treatment, this also works on the welds on the header pipes.

Cheers

Dennis

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