Master Cylinder Assembly; Master Cylinder Assembly And Associated Parts; Removal; Inspection And Repair - Isuzu 1999 RODEO Workshop Manual

5C–22 POWER–ASSISTED BRAKE SYSTEM

Master Cylinder Assembly and Associated Parts

Legend
(1) Electrical Connector
(2) Master Cylinder
(3) 2 attaching Nuts

Removal

CAUTION: When removing the master cylinder from
the vacuum booster, be sure to get rid of the internal
negative pressure of the vacuum booster (by, for
instance, disconnecting the vacuum hose) in
advance.
If any negative pressure remains in the vacuum
booster, the piston may possibly come out when the
master cylinder is being removed, letting the brake
fluid run out.
While removing the master cylinder, further, do not
hold the piston as it can be easily pulled out.
Outside surface of the piston is the surface on which
seals are to slide. Care should be taken to keep the
surface free of cuts and dents.
1. Disconnect electrical connector.
2. Remove brake pipes and after disconnecting the
brake pipe, cap or tape the openings of the brake pipe
to prevent the entry of foreign matter.
3. Remove 2 attaching nuts.
4. Remove P&B valve and bracket.

Master Cylinder Assembly

(4) P&B Valve and Bracket
(5) Brake Pipes
(6) Spacer and 2 gaskets
5. Remove master cylinder.
6. Remove spacer and the 2 gaskets.

Inspection and Repair

Master Cylinder
The master cylinder is not repairable and must be
replaced as a complete assembly if found defective.
Inspection
Excessive brake pedal travel, malfunction or dragging
brake suggests that the master cylinder is defective. In
such cases perform the following visual check:
Visual Check
Make parts replacement as required if wear, distortion,
nicks, cuts, corrosion, or other abnormal conditions are
found through the following parts inspection:
f Master cylinder body
f Fluid reservoir
f O–ring
330RW010