Not quite sure what you mean, but....... If you are on about a RR Classic with a Lucas Girling (1987 onwards?) servo/master rather than the ABS type.... there are two rubber inserts that sit in the top of the master cylinder where the plastic resevoir mounts, both of these are contained in a standard master cylinder recon kit, though you MANY have to remove the master cylinder to fit them..... I believe the same is true of the earlier (pre-1987?) AP brake system.
part 7 on the AP system diagram:
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part 16 on the LG diagram
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I would remove the resevoir, inspect for damage, if none try and get replacement seals/rubbers.
Anybody else wanna chip in?
VBM wrote:
I have a leak in one (maybe both) of the two cylinders which connect the
> brake fluid container to the rest of the assembly. I am ready to buy a
> whole new container unit, which I believe would contain those two cylinders,
> but I thought I would ask here first whether it could be a gasket or
> something that could be more easily fixed. I am not a mechanic or even a
> good tinkerer, so I would not be comfortable taking the whole thing apart
> myself unless I knew it was most likely fixable.
>
>