Drain the engine oil.
Remove the oil pan.
Remove the mesh oil filter.
Remove the oil pump chain guide.
Remove the oil pump chain tensioner.
Remove the oil pump chain tensioner spring.
Remove the oil pump chain.
Remove the oil pump sprocket
Remove the oil pump.
Install in the reverse order of removal.
Check engine oil level.
Start the engine and check for oil leakage. If there is a leak, identify the defective part and repair or replace it.
Check oil pressure.
Pic. 2.209. Oil pump components: 1 - mesh oil filter; 2 – chain guide of the oil pump; 3 - oil pump chain tensioner; 4 – oil pump chain tensioner spring; 5 – chain of the oil pump; 6 – an asterisk of the oil pump; 7 - oil pump; 8 - bolts