Repair and fitting instructions for CP7854 & CP7855

Repair kits are available for all Master Cylinder bore sizes. Kit contents are detailed below.




INSTRUCTIONS:
1)
Remove rubber boot (11) and circlip (13).
2) Carefully remove internal components.
3) Replace the following. (making sure all mseals have been lubricated with brake fluid). Primary seal (1), slydring Bearing (2) Piston Washer (4) D-Ring Piston Seal (5) and the O-Ring End Cap Seal
(9). (Care must be taken when assembling seals as damage maybe caused).
4)
Check bore is free from debris.
5) Lubricate bore with brake fluid.
6) Re-assemble internal components into body.
7) Use new circlip (13) to secure internal components and new boot to protect from debris (11).

Ref:

Description

Included in Repair Kit

 1.

Primary Seal 

 Yes

 2.

 Slydring Seal

 Yes

3.

M Cyl Return Spring

4.

Piston Washer

Yes

5.

 D-Ring Piston Seal

Yes

6.

Cut-Off Shim

7.

Piston

8.

End Cap

9.

O-Ring cap Seal

Yes

10.

Lock Nut 5/16" UNF

11.

Boot

Yes

12.

Spring Guide Pin

13.

Circlip

Yes

14.

Body

 


Universal Repair Kits

Cylinder Bore Size

Part Number

14.0mm (0.551")

CP7855-88RK

15.0mm (0.590")

CP7855-89RK

15.9mm (0.625") 5/8"

CP7855-90RK

16.8mm (0.661")

CP7855-905RK

17.8mm (0.70")

CP7855-91RK

19.1mm (0.75") 3/4"

CP7855-92RK

20.6mm (0.812") 13/16"

CP7855-93RK

22.2mm (0.875") 7/8"

CP7855-94RK

23.8mm (0.937") 15/16"

CP7855-95RK

25.4mm (1.00")

CP7855-96RK