Q45 V8-4494cc 4.5L DOHC (VH45) (1992)
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Brake Proportioning/Combination Valve: Testing and Inspection
Hydraulic System, Brakes
Fig. 1 Exploded View Of Master Cylinder.
1.
On ABS models, disconnect harness connectors from ABS actuator.
2.
On all models, connect brake fluid pressure tool No. KV991V0010 or equivalent to air bleeder of front and rear brakes on either LH or RH side.
Fig. 8.
3.
Bleed air from tool.
4.
Depress brake pedal and compare pressures.
5.
On G20 models:
a. Front brake pressure is 853 psi.
b. Rear brake pressure is 526-583 psi.
6.
On J30 models:
a. Front brake pressure is 782 psi.
b. Rear brake pressure is 455-512 psi.
7.
On Q45 models:
a. Front brake pressure is 924 psi.
b. Rear brake pressure is 739-796 psi.
8.
Bleed brake system after disconnecting tool.
