5.1.2. Oil pump

Unscrewing of a cover of the oil pump

Extraction of a spring

Extraction of the piston of the safety valve


1. To remove the oil pallet.
2. To unscrew three bolts fixing the oil pump to the block of cylinders.
3. To remove a pump asterisk from a chain and to remove the oil pump.


1. To check an asterisk of the oil pump for damages and wear. If the asterisk is worn-out, to replace the pump.
2. To unscrew bolts of fastening of the mesh filter to the pump, to remove the mesh filter, the safety valve and a spring.
3. To check a side play of gear wheels of the oil pump of rather basic surface (at most 0,05 mm).
4. To check the piston and a spring of the safety valve for wear.
5. To clear the mesh filter of the oil pump.


Installation is made in the sequence, the return to removal.