NOTE:
• If only a single part is replaced, perform the work with the engine mounted on the vehicle.
• To avoid mixing the timing chain component parts, separate each part after their removal.
1. Disconnect the ground cable from battery.
2. Lift up the vehicle.
3. Remove the under cover.
4. Drain the engine coolant. 
5. Drain the engine oil.
6. Remove the air intake boot.
7. Remove the air intake duct and hose.
8. Remove the radiator sub fan motor assembly.
9. Remove the radiator main fan motor assembly.
10. Remove the radiator.
11. Remove the catalytic converter and DPF.
12. Remove the V-belts.
13. Remove the V-belt tensioner.
14. Remove the crank pulley.
15. Remove the scavenger pump.
16. Remove the vacuum pump.
17. Remove the camshaft position sensor.
18. Remove the oil level gauge and oil level gauge guide from the chain cover.
19. Remove the chain cover.
20. Remove the timing chain.
21. Remove the fuel pump gear.
22. Remove the reduction sprocket and gear.
(1) Using ST, align the position of the crank gear key at the 3 o’clock position as shown in the figure.
| ST 18252AA000 | CRANKSHAFT SOCKET |
(2) Attach the ST to the reduction sprocket and gear, and temporarily fix the sub gear in place.
NOTE:
The position where the ST is to be attached, is below the part where there are two timing mark stamps.
| ST 18363AA020 | BOLT |
(3) Remove the reduction sprocket and gear plate.
(4) Remove the reduction sprocket and gearshaft and the reduction sprocket and gear together as a set.
(5) Remove the reduction sprocket and gear plate.
