[Healeys] Aluminum brake & clutch cylinders

[Oudesluys]

Original cylinders were honed and polished before being anodised.
Honing leaves the aluminium surface relative rough. You have to polish 
the surface using 400 grade or less. To make it perfect you can use 
metal polish after that. The black is probably caused by rubber 
particles that rub of the rough surface.
Kees Oudesluijs
NL


john spaur schreef op 5-3-2014 4:23:
> I don't know if original cylinders were honed or not. However, after 
> honing several original cylinders, years ago, I noticed the brake 
> fluid would turn black very quickly.  The brake fluid was relatively 
> clear prior to honing and I am certain it was not related to a 
> contamination issue.
>
> John Spaur
> '62 BT7
>
> At 05:35 PM 3/4/2014 -0500, warthodson at aol.com wrote:
>
>> What is the origin of the claim that the original cylinders were 
>> anodized?
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-- 
Kees Oudesluijs
Dorpsstraat 183
2995XG Heerjansdam
T: 078-677 1233
E: coudesluijs at chello.nl

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