claening in between the fins what tool

[Beemerboff]

If you can get into a commercial abrasives shop they have a lot of products that dont get into hardware stores, including Scotchbrite discs and " flap" wheels with long narrow tails which are long enough to clean right down to the bottom of the fins.
0r try a commercial painters supplier - they usually have a good stock of Scotchbrite , including the thick stiff brown aluminium oxide sheets which will do the job too.

Ajax and a stainless steel scouring pad work OK too, but its probably not worth the risk-------

 

[Bendy toy]

Has anyone tried soda blasting? With painted parts (and user) suitably masked of course.

 

[jackassdave]

im afraid its coming to bits and evry thing is being sent of to the blasters ,i may regret this decision

 

[chrisshrops]

I had my top ends vapour blasted ,they came up like new mate

 

[jackassdave]

I had my top ends vapour blasted ,they came up like new mate

that sounds painfull ooh no (frankie howard titter !!!!!)

 

[david a hall]

I have just ignored the fins for the last 8 years, I have better things to do in life.