[Healeys] Clutch question

[Oudesluys]

  Anodizing is a chemical oxidation treatment of metal forming a hard, 
porous layer of oxide of about 10-255m on the surface. It is mainly used 
for aluminium, titanium to increase wearing and corrosion properties. 
The porous layer can be sealed to improve corrosion resistance. During 
the proces you can also add a color.
Aluminium is anodized using sulphuric acid.

If you clean and lightly polish the bores you will not damage the 
anodized surface.
If you hone the bores of aluminium brake cylinders you may remove the 
hard layer. This is not always a problem but you need to polish the 
bores afterwards, although they will not last as long as new cylinders. 
Rebuild them using special brake/rubber lubricant. This will reduce 
corrosion and wear.

However considering the effort it takes and the prices of the rebuild 
kits it is more efficient to get new cylinders altogether.

Kees Oudesluijs
NL

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