Removing
The location of the oil pump mounting bolts
1 – bolts of fastening of the oil pump;
2 – a bolt of fastening of an oil receiving pipe to an arm
1. Remove the oil pan.
2. Remove the oil pump sprocket bolt and remove the sprocket along with the drive chain.
3. Remove the bolt securing the oil pickup pipe bracket.
4. Remove the three oil pump mounting bolts and remove the oil pump from the cylinder block (see fig. The location of the oil pump mounting bolts).
Examination
Oil pressure relief valve
1 - cork; 2 - spring; 3 - guide pin; 4 - piston
1. Unscrew the pressure relief valve plug. When doing this, be careful, as a strongly compressed spring presses on the cork (see fig. Oil pressure relief valve).
2. Remove spring, guide pin and piston.
3. Clean the parts of the oil pressure relief valve, check their condition and replace if necessary.
4. Assemble the oil pressure relief valve in the reverse order of disassembly.
Installation
1. Installation is carried out in the reverse order of removal, taking into account the following points. Before installing the oil pump, fill it with clean engine oil.
2. Install the oil pump sprocket with the convex side towards the pump.