Examination
1. Start and warm up the engine.
2. Disconnect the hose from the vacuum pump and connect the vacuum gauge as shown. Check the vacuum value depending on the engine speed.
Vacuum value (after 20 seconds):
- at 1270 rpm: nominal - not less than 74.0 kPa
- at 2450 rpm: nominal - not less than 94.0 kPa
If the pressure is not correct, carry out the following checks:
A) Check the oil pressure in the engine lubrication system (see chapter "Lubrication system").
b) Check the vacuum pump for damage and wear.
Replace defective elements if necessary.
Removal and installation
1. Remove the battery and battery tray (see chapter "Maintenance and general inspection and adjustment procedures").
2. Remove the retainer shown in the figure.
3. Remove the parts in the order they are numbered on the assembly drawing "Removal and installation of the vacuum pump".
Removal and installation of the vacuum pump.
1 - bracket,
2 - vacuum hose,
3 - bolt,
4 - vacuum pump,
5 - ring seal.
Note: Installation is in the reverse order of removal.