Workshop Manuals Factory service & repair Land Rover
01 02 AMENDMENT INSTRUCTION SHEET03 INTRODUCTION04 GENERAL SPECIFICATION DATA05 ENGINE TUNING DATA06 GENERAL FITTING REMINDERS07 MAINTENANCE08 ENGINE09 FUEL SYSTEM10 COOLING SYSTEM11 MANIFOLD AND EXHAUST SYSTEM12 CLUTCH13 MANUAL GEARBOX14 TRANSFER GEARBOX15 PROPELLER SHAFTS16 REAR AXLE AND FINAL DRIVE17 FRONT AXLE AND FINAL DRIVE18 STEERING19 FRONT SUSPENSION20 REAR SUSPENSION21 BRAKES22 WHEELS AND TYRES23 CHASSIS AND BODY24 HEATING AND VENTILATION25 AIR CONDITIONING26 WIPERS AND WASHERS27 ELECTRICAL28 INSTRUMENTS
Land Rover 300Tdi Defender21 · BRAKES
21 · Brakes

MASTER CYLINDER (page 3 of 3)

Make
Land Rover
Model
Defender 300Tdi Defender
BRAKESMASTER CYLINDER · page 3 of 3
background image

70

BRAKES

4

OVERHAUL

Assembling master cylinder

CAUTION: It is important that the following
instructions are carried out precisely,
otherwise damage could be caused to new

seals when inserting plungers into cylinder bore.
Generous amounts of new brake fluid should be
used to lubricate parts during assembly.

NOTE: Thoroughly check that no debris is
lodged in fluid passageways and drillings.
If debris is found, carefully remove,

re-clean cylinder and re-check.

16. Fit new swirl tube to bottom of cylinder bore.

17. Lubricate secondary plunger and cylinder bore.

Offer plunger assembly to cylinder until
recuperation seal is resting centrally in mouth of
bore. Gently introduce plunger with a circular
rocking motion, as illustrated. Ensuring that seal
does not become trapped, ease seal into bore
and slowly push plunger down bore in one
continuous movement.

18. Fit primary plunger assembly using same

method as for secondary plunger, push plunger
down bore.

19. Fit original guide ring to support primary plunger.
20. Coat a new ’O’ ring with brake fluid and fit to its

respective groove on outer location surface of
master cylinder.

CAUTION: ’O’ ring should not be rolled
down outer location surface of master
cylinder but should be slightly stretched

and eased down cylinder and into its groove. Do
not over stretch seal.

21. Fit a new retaining ring on outer surface of

master cylinder ensuring that serrations of ring
are facing mounting flange.

22. Fit two new reservoir seals in their respective

ports.

23. Fit a new vacuum seal to either primary plunger

or to bottom of transfer housing bore, open face
of seal towards primary plunger guide ring.

24. Lubricate vacuum seal with brake fluid, fit

transfer housing to master cylinder, push
housing fully up to cylinder mounting flange. Do
not adjust transfer housing after fitting.

25. Lubricate a new water ingress seal with brake

fluid, slightly stretch seal and ease it down
housing until seal is in correct position between
housing and flange.

26. Roll reservoir into top of master cylinder,

reversing procedure described in instruction 3.

27. Fit master cylinder to servo

See Repair,

Master cylinder .

28. Reconnect battery, and road test vehicle.

Parts & tools for this job For Land Rover Defender

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.