Vacuum hose
Attention:
- Since the vacuum hose has a built-in stop valve, it must be installed in the correct direction. Refer to the marking. If the hose is not connected correctly, the brake booster will not function properly.
- Insert the vacuum hose to a depth of at least 24 mm.
- Do not use lubricating oil during assembly.
Vacuum pump
For removal and installation operations, see the chapter ENGINE MECHANICAL PART.
Examination
Visual inspection
Check if the assembly is correct and there is no damage or wear.
Checking the check valve
Checking for leaks
Perform a check using a hand vacuum pump.
When connecting from the amplifier side (1): The vacuum reduction should be about 1.3 kPa (10 mm Hg.) within 15 seconds at a vacuum of -66.7 kPa (-500 mmHg.).
When connecting from the engine side (2): There should be no vacuum.
