Oil pump for gasoline engines

Removal and installation of the oil pump

Note.

: replace the part with a new one after each removal.

: apply oil.

Attention.

• A hot engine and engine oil can cause various burns. You must turn off the engine and wait until it cools down.
• A vehicle that is raised on a lift but not secured with safety stands is dangerous. It may come off and fall, causing death or serious injury. Do not work around or under a raised vehicle that is not supported by safety stands.
• Prolonged skin contact with used engine oil can cause skin cancer. Wash hands thoroughly with soap and water immediately after handling engine oil.
• If the camshaft is rotated after the timing chain has been removed, when the piston is at top dead center, the valves may hit the piston crown, causing engine damage. When rotating the camshaft with the drive chain removed, it is necessary to set all the engine pistons to the middle position.
• When turning the camshaft with a wrench on the hex part, the wrench may rest against the rocker and damage it. To prevent damage to the rocker arm, when holding the camshaft by the hex part, place the wrench closer to the rear of the engine, as shown in the figure, to ensure a safe gap between the wrench and the camshaft cam.

Note. The width of the hexagonal part of the camshaft is 22-24 mm.

Removing the oil pump

1. Disconnect the negative battery terminal.

2. Remove the decorative engine cover.

3. Remove ignition coils/ion sensors.

4. Remove the protective tray No. 2 of the engine.

5. Remove mudguard.

6. Remove the attachment drive belt.

7. Drain engine oil.

8. Remove the oil pan.

9. Remove the engine front cover.

10. Unscrew the fastening bolts and remove the oil intake.

11. Remove the mounting bolt and remove the oil pump drive chain tensioner.

12. Remove the oil pump drive sprocket:

Temporarily screw in the crankshaft pulley bolt and secure the oil pump from turning as shown.



Remove the oil pump drive sprocket.

13. To turn away bolts of fastening and to remove the oil pump.

Oil pump installation

1. Install the oil pump:

Screw on the three fixing bolts shown in the figure.



Tighten the two screws shown in the figure to a tightening torque of 20-26 Nm.

Note. The bolt tightening sequence does not matter.

Tighten the remaining bolt to 20-26 Nm.




2. Install the oil pump sprocket:

Temporarily screw in the crankshaft pulley bolt and secure the oil pump from turning as shown.



Install the oil pump drive sprocket and tighten the mounting bolt to 20-30 Nm.

Remove the crankshaft pulley bolt.

3. Install the oil pump chain tensioner and tighten the mounting bolt to a torque of 8-11 Nm.

4. Install the oil intake and tighten the fastening bolts to a torque of 8-11 Nm.

5. Fill the required amount of engine oil of the correct grade into the engine.

6. Start the engine and check for oil leaks. If oil leaks are found, repair or replace the relevant component.

7. Check engine oil level.

8. Check the installation of the valve timing and the engine idle speed.

9. Check engine oil pressure.