[Healeys] brake & clutch maste & slave cylinders

[Oudesluys]

Jackson,
As I said, I have done it in the past and never encountered failures due 
to subsequent excessive wear in the bores (e.g. Triumph Spitfire, DAF, 
Landrover, Renault, VW etc). But then I do regularly check and change 
brake fluid and I will register a drop in brake fluid level immediately. 
To prevent corrosion and for lubrication in hydraulic systems I also use 
plenty of Ate brake grease on the "dry side" of the bores/pistons.
After honing aluminium bores I always used to polish them with 2000 
grade flower paper and metal polish and made sure the pistons were 
smooth as well. Assembling hydraulic components has to be done in an 
absolutely clean environment and with absolutely clean hands. It is the 
ingress of dirt that causes wear, not the polishing of aluminium.
The only time I have renewed brake cylinders (cast iron or aluminium) is 
when the bores were badly corroded/pitted/worn.

Kees Oudesluijs
NL

Jackson Krall schreef op 9-2-2014 2:22:
>
> Geez Kees, It seems very unlike you to be suggesting such a thing on such a crucial component. My experiance with honing aluminium MGC rear slave cylinders would dictate to not go anywhere near there! "Expirement" with a single line brake system? I don't think so!
> Best
> JK
>
>
>
>
> ------------------------------
> On Sat, Feb 8, 2014 6:29 PM EST Oudesluys wrote:
>
>> You can hone the aluminium cylinders, but you could expect them not to
>> last as long as new anodised ones. If you renew the brake fluid every
>> year you might not notice this to much though. It is free to hone them,
>> so you can always experiment. I have done it in the past and never
>> encountered any problems.
>> Kees Oudesluijs
>> NL
>>
>>
>> warthodson at aol.com schreef op 8-2-2014 15:31:
>>> I have read that the aluminum brake & clutch slave & master cylinders should
>>> not be honed because honing will remove the anodizing & then the cylinders
>>> will quickly wear.
>>> I presume one solution would be to have them anodized again.
>>> Does anyone know if the new reproduction cylinders being offered by on the
>>> market today are anodized? I believe Moss sometimes monitors this list so I
>>> will mention that I emailed them this question not long ago & am awaiting an
>>> answer.
>>> Gary Hodson
>>> ______________________________________________
>
>
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-- 
Kees Oudesluijs
Dorpsstraat 183
2995XG Heerjansdam
T: 078-677 1233
E: coudesluijs at chello.nl

Technische commissie Jensen Healey en GT
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