300Tdi Discovery
70
BRAKES
6
REPAIR
NOTE: The primary plunger assembly
cannot be broken down any further and is
serviced as a complete unit. Discard
assembly.
15. The secondary plunger assembly will remain at
bottom of master cylinder bore. Remove tapping
assembly on a piece of wood until plunger
appears at cylinder mouth, carefully pull plunger
out of master cylinder.
16. If swirl tube was not expelled at same time as
secondary plunger, repeat above operation to
remove it from bottom of master cylinder bore
and discard.
17. Clean all parts with unused brake fluid. Place
cleaned parts onto a clean sheet of paper.
Inspect cylinder bore and plungers for signs of
corrosion, ridges and score marks. Provided
working surfaces are in perfect condition, new
seals from a Girling Service repair kit may be
used.
Renewing secondary plunger seals
18. Remove following components from secondary
plunger and discard:
NOTE: A small screwdriver with end
rounded off and polished is required to
remove ’L’ seal. DO NOT damage
secondary plunger.
(A)
Springs
(B)
Seal retainer
(C)
Recuperating seal (primary cup)
(D)
Washer
(E)
’L’ seal
