[ROVERNET - UK] Fw: P6B 3500S Master cylinder The Full l Monty- All is revealed !!

phing phing at videotron.ca
Wed Mar 19 04:00:18 GMT 2008

 Here is the authorative story on the P6B 3500S twin brake line master cylinder, and rebuild kits . This is part of a long e mail 
from Ruth of ABC , who has been doing a fine job of holding my hot sticky paws  while I ponder the tortured design of my  Rover's 
braking system and attempt to understand the anoraky details of rebuild parts kits .I think this clarifies a complicated subject . 
I'm  grateful to Ruth for such a clear explanation and I'm happy to share the information with you all . Please note that is ONLY 
applicable to the P6B 3500S twin brake line system !!!
----- Original Message ----- 
From: "Ruth Burgess" <allbritishcars at shaw.ca>
To: "phing" <phing at videotron.ca>
Sent: Tuesday, March 18, 2008 8:24 PM
Subject: Re: P6 Master cylinder ??

> Patrick
>  ` ` ` ` ` `` .
> The brake master cylinder is the one for a Rover 3500S/ Jaguar v12 E type and all 4.2 E types.  There is no difference between 
> your brake lines and Jaguars. they are both 3/8 national fine and have been since the inception of both cars.  What the guys are 
> talking about on the Rover net is the little end piston between the master cylinder and the air valve.  If you are rebuilding an 
> original Rover 3500S you need a different kit as the little seal on that piston is 5/16' diameter on the original Jaguars, and 
> 3/8' on the Rover 3500S.
> Rover 3500S switched in 1974 to the Etype piston when they did the next run on production from Lockheed.  That is why all the 
> confusion.  When some one is rebuilding a original 3500S they need a different kit that has the larger air valve piston seal SSB 
> 925 If you have the later Master Cylinder or a replacement cylinder after 1976 you have the smaller seal.and that kit # is SSB 916 
> .
> As Kent will attest to:  if you are buying a kit from me You have to tell me the diameter of the piston on the end.
> For you, that information was not required as you were buying a new master cylinder,  you are fine!!!
> Just install and bleed the system.
> Ruth............
> ----- Original Message ----- 
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