Charade L4-1295cc 1.3L (1989)
Vacuum Brake Booster: Testing and Inspection
Less Brake Booster Tester
1.
Start engine and run for a few minutes.
2.
Stop engine, depress brake pedal several times at intervals of several seconds using normal force. If position of brake pedal rises at the second and
third application of pedal, booster is functioning properly.
3.
With engine running, depress and hold brake pedal. Stop engine, if pedal height remains same for at least 30 seconds, booster is functioning
properly.
4.
With engine off, depress brake pedal several times. Brake pedal height should be consistent.
5.
Start engine and if while depressing brake, if brake pedal moves in slightly, booster is functioning properly.
With Brake Booster Tester
Fig. 3 Installation Of Booster Testing Equipment.
Fig. 4 Installation Of Booster Testing Equipment.
1.
Connect pressure gauges, Mity Vac or appropriate vacuum device and pedal applying force gauge as shown in Figs. 3 and 4.
2.
On Rocky models, start engine, then run until 500mm HG of vacuum is reached and shut Off engine, there should be no vacuum drop for at least
15 seconds. On Charade models, apply 500mm Hg of vacuum using Mighty Vac, there should be no vacuum drop for at least 15 seconds.
3.
On Rocky models, start engine, then depress brake with a 44 lbs. of force. Stop engine when vacuum reaches 500mm Hg. On Charade models,
using Mighty Vac, apply 500mm Hg of vacuum. On all models, vacuum should not drop until 15 seconds after 500mm Hg of vacuum has been
reached.
Fig. 5 No Booster Pressure Test Specification.
Fig. 6 No Booster Pressure Test Specification.
4.
With engine off and no vacuum in booster, apply correct brake pedal pressure and note hydraulic pressure, Figs. 5 and 6.
