Timing Belt

Section I





1- Tensioning roller

2- 20 Nm (15 ft lb)

3- Tensioning lever

4- Dust cap

5- Expansion clip

6- Toothed belt guard, upper

7- Toothed belt
Mark running direction before removing
Inspect for wear
Do not bend or kink
See Removing and installing Service and Repair

8- Nut
Manual tensioning roller: 45 Nm (33 ft lb)
Semi-automatic tensioning roller: 20 Nm (15 ft lb)

9- Cam
For tensioning roller -10-

10- Tensioning roller
Semi-automatic tension roller (engine codes 1Z, AHU) shown

11- 45 Nm (33 ft lb)

12- Camshaft sprocket
Loosen from tapered end of camshaft by tapping with hammer on punch inserted through hole in rear drive belt guard

13- 25 Nm (18 ft lb)

14- Idler pulley
For engine codes 1Z, AHU

15- 10 Nm (7 ft lb)

16- Toothed belt guard, rear

17- Injection pump sprocket

18- Not applicable

19- Injection pump

20- Bracket
Engine codes 1Z, AHU

21- Console

22- Intermediate shaft sprocket

23- Crankshaft sprocket
For toothed belt

24- 90 Nm (66 ft lb) + 1/4-turn (90°)
Always replace.
Loosen and tighten using 3099 spur belt spreading tool.
Lubricate thread and collar.
Additional 1/4-turn can be performed in more than 1 increment, if necessary.

25- Nut
Engine code AAZ
45 Nm (33 ft lb)
Engine codes 1Z, AHU
55 Nm (41 ft lb)

26- Toothed belt guard, lower

27- Belt pulley
For engine coolant pump
Ribbed belt version

28- Ribbed belt
Mark running direction before removing

29- Belt-pulley/vibration damper
Can only be installed in one position

30- V-belt

31- Pulley
For engine coolant pump
V-belt version shown

32- Pulley