Checking the vacuum pump
1. Remove the decorative engine cover.
2. Use pliers to loosen the clamp and disconnect the vacuum hose from the vacuum pump.
3. Install the vacuum gauge as shown in the figure and check the vacuum.
4. Warm up the engine. If the pressure is below normal, check the technical condition of the vacuum pump and the lack of oil in the pump.
(Original version of the article on the website Mazbook.ru)
5. Installation is carried out in the reverse order of removal.
Removal and installation a vacuum pump
Versions with petrol engines
1. Vacuum hose.
2. Exhaust camshaft position sensor connector.
3. Bolt.
4. Vacuum pump.
5. O-ring with circular cross-section.
Note:replace the part with a new one after each removal.
1. Remove the decorative engine cover.
2. Remove the battery from the shelf.
3. Move the engine control unit wiring aside.
4. Loosen the clamp with pliers and disconnect the vacuum hose from the vacuum pump.
5. Disconnect the exhaust camshaft position sensor connector.
6. Loosen the mounting bolts and remove the vacuum pump.
Note: When removing the vacuum pump, place a rag under its mounting surface so that any leaking engine oil does not fall onto other parts.
7. Remove the O-ring round cross-section.
8. Manually rotate the vacuum pump to drain any remaining engine oil from the vacuum pump.
9. Degrease the installation groove for the sealing ring and the installation surfaces.
10. Install a new O-ring onto the vacuum pump.
11. Install the vacuum pump.
12. Further installation is carried out in the reverse order of removal.
Versions with diesel engines
1. Vacuum pipe.
2. Mounting bolts.
3. Bolt.
4. Vacuum pump.
A. O-ring with round cross-section.
Note:replace the part with a new one after each removal.
1. Remove the decorative engine cover.
2. Remove the battery from the shelf.
3. Use pliers to loosen the clamp and disconnect the vacuum hose from the vacuum pump.
4. Remove the following parts:
- Air filter cover.
- Air filter element.
- Air duct.
- Air filter housing.
- Air hose.
- Air intake duct.
5. Remove the turbocharger outlet hose together with the air intake pipe.
6. Disconnect the fuel temperature sensor connector.
7. Disconnect the camshaft position sensor connector.
8. Remove the camshaft position sensor wiring from the lower housing.
9. Prepare for engine parameter checks (see Chapter 6b "Mechanical part of the diesel engine").
10. Loosen the water pipe mounting bolts and set it aside.
11. Remove the fuel return line (from the high pressure fuel pump side).
12. Remove the fuel return line (from the fuel injectors side).
13. Remove return fuel hoses No.1 and No.2.
14. Unscrew the lower housing mounting bolts and move it to the side.
15. Disconnect the vacuum hose.
16. Loosen the mounting bolts and remove the vacuum pump.
Note: When removing the vacuum pump, place a rag under its mounting surface so that any leaking engine oil does not fall onto other parts.
17. Remove the O-ring round cross-section.
18. Manually rotate the vacuum pump to drain any remaining engine oil from the vacuum pump.
19. Degrease the installation groove for the sealing ring and the installation surfaces.
20. Install a new O-ring onto the vacuum pump.
21. Install the vacuum pump.
22. Apply a thin layer of silicone sealant (TB1217G) as shown in the figure.
Note: Install the vacuum pump before the sealant begins to harden.
23. Install the vacuum pump.
24. Further installation is carried out in the reverse order of removal.
25. Perform the engine post-service procedures (see Chapter 6b "Diesel Engine Mechanical Part").