[Rovernet] Rebuilding P3 master cylinder

Tom Rymes tom at rymes.net
Tue Dec 20 20:49:41 EST 2016


When it comes to hydraulics, it's hard to beat sending them off to White Post in Virginia for them to resleeve and rebuild. It's not that expensive, especially considering that it's better than new.

> On Dec 20, 2016, at 7:50 PM, Steve Manwell via Rovernet <rovernet at rovernet.org> wrote:
> 
> Pat,
> 
> Is it a right or left hand drive car?  If it's LHD and has the original master cylinder, the master cylinder is an unusual design that operates by pulling on the piston rather than pushing on the piston as with most master cylinders.
> 
> It is also a CB type cylinder (as far as I understand)  so the seals rely on a good smooth surface on both the ID of the cylinder bore and the OD of the piston.  As a result, a rebuild should include both sleeving the bore and replacing the piston or sleeving the OD of the piston.   Because of the odd construction of the cylinder, I would think it might be difficult to find a rebuilder in the US or Canada.  I had my LHD P3 master cylinder rebuilt in the UK -- let me know if you don't find resources in North America for a rebuild.
> 
> Steve Manwell
> 
> (Boston, MA area)
> 
> 
>> On 12/20/2016 1:26 PM, Pat Leask via Rovernet wrote:
>> Would anyone happen to know (or have) an article on how to rebuild a brake
>> master cylinder on a P3 please? My manual does not show such a thing, which
>> seems odd.
>> 
>> I went to do a search of the forum past posts, but not sure this is
>> possible, is it?
>> 
>> Thanks, Pat
>> Victoria BC
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