Timing chain replacement: Toyota YARIS_1 2 NZFE (1NZ-FE, 2NZ-FE)

🧭 Before you start

Fits: platform codes 1.3, 16V, VVT-I, |, 1.5, TS

• Opens: coolant
• Timing position: the crankshaft or camshaft is set and locked during this job
• Special tools named: locking pin

Don't miss

• Always renew the timing chain
• If the timing chain is to be re-used, mark the running direction before removal
• Never turn the engine in the direction opposite to that of normal operation
• Caution! Do not damage the case(s)

🔧 Engine codes this applies to

📋 Procedure

Preparation and removal

1. Always renew the timing chain
2. Never turn the engine in the direction opposite to that of normal operation
3. Before disconnecting the battery cable, check the audio system security code
4. Disconnect the battery earth cable
5. If the timing chain is to be re-used, mark the running direction before removal

6. Crankshaft pulley (bolts)
7. Remove the alternator
8. Remove the right-hand engine mount
9. Remove the cylinder head front cover
10. Remove the ignition coils
11. Use the special tools
12. If necessary
13. Disconnect the crankshaft position sensor
14. Remove the crankshaft position sensor
15. Remove the coolant pump
16. In the order shown
17. Caution! Do not damage the case(s)
18. Remove the O-ring(s)
19. Remove and discard the crankshaft oil seal
20. Remove the chain tensioner
21. Remove the timing chain
22. Chain tensioner

Installation and checks

23. Engine mount:
24. Lock the tensioner; use a locking pin
25. Fit the chain tensioner
26. Note: Place a wooden block on the jack
27. Vehicles with air conditioning:
28. Use the special tool
29. Apply sealant as indicated
30. Refit the timing chain cover
31. Fit the coolant pump
32. Refit the engine mounting bracket
33. Align the crankshaft timing marks
34. Refit the crankshaft position sensor
35. Oil control solenoid valve
36. Except leaded fuel:
37. Refit the oil control solenoid valve
38. Apply sealant as indicated
39. Refit the cylinder head cover
40. Reconnect the positive crankcase breather hoses to the valve cover
41. Refit the ignition coil(s)
42. Refit the engine mount
43. Refit the engine lower cover
44. Refill the cooling system
45. Reconnect the battery earth cable
46. Start the engine
47. Check the gearwheels, tensioner and idler pulley(s) for damage and wear
48. Minimum outer diameter:
49. Minimum outer diameter:
50. Maximum depth of wear:

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