1MZ-FE Engine

Fig. Exploded view of the timing belt, covers and gears

1. Remove the engine coolant reservoir tank and the alternator belt.

Fig. Remove the engine coolant reservoir by pushing the retaining clip

2. Remove the right front wheel and the splash shield.

3. Remove the power steering pump drive belt by loosening the two bolts.

Fig. Loosen the bolts to loosen the power steering drive belt

Fig. Slip the power steering drive belt off

Disconnect the two ground wire connectors.

4. Remove the right engine mounting stay.  5. Remove the engine moving control rod and the No. 2 right engine mounting

bracket.

Fig. Remove the bolts retaining the engine control rod

Fig. Remove the engine control rod (1) and No. 2 right engine bracket (2)

NOTE

To extract the engine bracket and control rod, you will need to raise the engine slightly.

7. Remove the No. 2 alternator bracket.

Fig. The No. 2 alternator bracket is held in by a bolt and stud

8. Using a prybar and wrench or SST tool 09213-54015 and 09330-00021, remove the crankshaft pulley bolt.

 

Fig. Using a prybar to retain the pulley, remove the bolt

9. Using a puller, remove the crankshaft pulley.  10. Remove the No. 1 timing belt cover by removing four bolts.  

Fig. Remove the four bolts retaining the timing belt cover

Fig. Note the timing marks are on the lower cover

Fig. On the passengers side near the firewall is a bolt retaining the engine wiring. Remove this . . .

Fig. . . . then push the retaining clip to release the harness

Fig. Now simply lift the harness up and tie it up it out of the way

Remove the No. 2 timing belt cover as follows:  

1. Remove the bolt and disconnect the engine wire protector from the No. 3 (rear) timing belt cover.  

2. Disconnect the engine wire protector clamp from the No. 3 timing belt cover.  

3. Remove the five bolts from the No. 2 timing belt cover.  4. Remove the No. 2 cover from the engine.  

Fig. The No. 2 timing belt cover is secured by 5 bolts

Fig. Lift and remove the No. 2 timing belt cover from the engine

To install:

Apply the new gasket to the No. 2 timing belt cover. Install it evenly to the part of the belt cover shaded black. After installation, press down on it so that the adhesive sticks to the belt cover firmly.  

Fig. Place the new gasket on the No. 2 timing cover till it sticks firmly

13. Install the No. 2 timing belt cover with the five bolts. Tighten the bolts to 74 inch lbs. (8 Nm).  

14. Install the engine wire protector clamp to the No. 3 timing belt cover.  15. Install the engine wire protector to the No. 3 timing belt cover with the bolt.  16. Apply new gasket the way you did on the No. 2 cover on the No. 1 timing cover.

Secure the No. 1 timing belt cover with four bolts. Tighten the bolts to 74 inch lbs. (8 Nm).  

Fig. Place the new gasket on the No. 1 timing cover till it sticks firmly

17. Install the crankshaft pulley. Tighten the bolt to 159 ft. lbs. (215 Nm).  

18. Install the No. 2 alternator bracket. Tighten the nut to 21 ft. lbs. (28 Nm). Do not tighten the pivot bolt at this time.  

19. Install the No. 2 right engine mounting bracket and the moving control rod.  20. Install the right engine mounting stay.  21. Connect the two ground wire connectors.  22. Install and adjust the drive belts.  23. Install the coolant reservoir.  24. Install the right front splash shield and wheel assembly.  25. Connect the negative battery cable.  26. Start the vehicle and check for any leaks.  27. Recheck the ignition timing.

1MZ-FE Engine

1. Remove the timing belt covers as described earlier in this section.  2. Remove the right engine mounting bracket by removing the nut and two bolts.  

Fig. Remove the right engine mounting bracket bolts and nut . . .

Fig. . . . then lift the right engine bracket from the engine

3. Remove the crankshaft timing belt guide.  

Fig. Slide the timing belt guide off the crankshaft pulley

Fig. Place matchmarks on the pulley and cover

4. Temporarily install the crankshaft pulley bolt.  5. Turn the crankshaft and align the crankshaft timing pulley groove with the oil pump

alignment mark. Always turn the engine clockwise.  

Fig. Turn the crankshaft clockwise to align the crankshaft timing pulley grove with the oil pump mark

6. Ensure the timing mark of the camshaft timing pulleys and rear timing belt cover are aligned. If not, turn the engine over an additional 360 °.  

Fig. Align the timing marks to set No. 1 cylinder to TDC

Fig. If the timing marks are not aligned, turn the crankshaft one full revolution (360 degrees)

7. Remove the crankshaft pulley bolt.

NOTEIf the belt is to be reused, align the installation marks on the belt to the marks on the pulleys. If the marks have worn off, make new ones.

Fig. Make sure the timing belt marks are aligned with the camshaft pulley and No. 3 timing belt cover

8. Alternately loosen the two timing belt tensioner bolts. Remove the tensioner and dust boot.  

Fig. Unbolt the timing belt tensioner . . .

Fig. . . . and only carry it in the upright position

9. Remove the timing belt.  

Fig. Place a directional arrow on the belt if reusing it

Fig. Slip the belt off the lower and upper pulleys and extract it from the engine

10. Using a spanner wrench, remove the right side camshaft timing pulley. Do the same for the left side.  

Fig. Remove the camshaft pulley bolt and pulleys

Fig. Label the camshaft pulleys with an L and R to identify them

NOTEMake sure the left and right side camshaft pulleys are arranged on the table correctly. Do not mix them up! It is recommended to mark them with an L and R.

11. Remove the bolt retaining the No. 2 idler pulley, the slide the pulley off.  

Fig. Remove the No. 1 idler pulley and bolt

Fig. Remove the bolt retaining the No. 1 idler pulley, then slide the pulley off

12. Using a 10mm hexagon wrench, remove the bolt and No. 1 idler pulley with plate washer.  

13. Remove the crankshaft bolt and timing belt plate. Using a gear puller, separate the crankshaft pulley from the engine.  

Fig. Remove the crankshaft timing belt plate . . .

Fig. . . . then remove the crankshaft pulley gear

NOTEDo not scratch the sensor portion of the crankshaft timing pulley.

14. Inspect the seal for leakage and replace if necessary.  

Fig. Look for seal leakage and replace if noticeable

To install:

15. When installing the crankshaft timing pulley, along the pulley set key with the key groove of the pulley, then slide the pulley on. Install the crankshaft timing pulley,

with the sensor side facing inward. Install the timing belt plate and tighten the bolt to 69 inch lbs. (8 Nm).  

Fig. Install the crankshaft timing pulley with the sensor facing inward

16. Install the No. 1 idler pulley using a 10mm hexagon wrench, install the plate washer and idler pulley with the pivot bolt. tighten the pivot bolt to 25 ft. lbs. (34 Nm). Check that the pulley moves freely.  

17. Install the No. 2 idler pulley and tighten to 32 ft. lbs. (43 Nm). Check that the pulley moves smoothly.  

Fig. Install the No. 2 idler pulley with the bolt and washer in these locations

18. Install the right side camshaft timing pulley, face the flange side of the pulley outward. Align the knock pin on the camshaft with the knock pin groove of the timing pulley, then slide the right hand camshaft pulley on. Install the pulley bolt and tighten to 65 ft. lbs. (88 Nm).  

NOTEUse a torque wrench with a fulcrum length of 13.39 inch (340mm).

19. Install the left side camshaft timing pulley, face the flange side of the pulley outward. Align the knock pin on the camshaft with the knock pin groove of the timing pulley, then slide the left side camshaft pulley on. Install the pulley bolt and tighten to 94 ft. lbs. (125 Nm).  

20. Temporarily install the crankshaft pulley bolt of the crankshaft. Turn the crankshaft, and align the timing marks of the crankshaft timing pulley and oil pump body.  

21. Using a spanner wrench, turn the camshaft pulley, align the timing marks of the timing pulley and the No. 3 timing belt cover.  

22. Remove any dirt or oil from the pulleys and keep them clean. Only wipe the pulleys. Face the front mark of the timing belt forward. align the installation mark on the belt with the timing mark of the crankshaft timing pulley. Align the installation marks on the timing belt with the timing marks on the camshaft timing pulleys.  

23. Install the timing belt in the following order:  1. Crankshaft pulley  2. Water pump pulley  3. Left camshaft pulley  4. No. 2 idler pulley  5. Right camshaft pulley  6. No. 1 idler pulley  

Fig. Install the timing belt components in this order

24. Inspect the tensioner prior to installation of the old one as follows:  1. Visually check for any oil leakage. If there is only the faintest trace of oil on

the seal on the push rod side, the tensioner is still useable.  2. Using force against an sturdy object facing upwards only, press the rod to

see if there is no movement. If the rod moves, replace the tensioner.  3. Using a press, slowly press the timing belt tensioner until the holes of the

pushrod and housing align. Insert a 1.27mm hexagon Allen® wrench through the holes to preserve the setting position.  

Fig. Remove the boot from the tensioner

Fig. Measure the protrusion of the rod from the housing end

Fig. Press the rod facing upwards only to see if it moves

Fig. Insert an Allen® head wrench through the hole of the tensioner

25. Install the dust boot to the tensioner.  26. Install the tensioner with the two bolts. Alternately tighten and then tighten the bolts

to 20 ft. lbs. (27 Nm). Remove the Allen® wrench.  27. Turn the crankshaft clockwise and align the crankshaft timing pulley groove with

the oil pump alignment mark.  28. Ensure the camshaft timing marks align with the timing marks on the rear timing

belt cover.  29. Install the timing belt guide.  30. Install the right engine mounting bracket and tighten the bolts to 21 ft. lbs. (28 Nm). 31. Install the No. 2 timing belt cover with the five bolts. Tighten the bolts to 74 inch

lbs. (8 Nm).  32. Install the engine wire protector clamp to the No. 3 timing belt cover.  33. Install the engine wire protector to the No. 3 timing belt cover with the bolt.  34. Install the No. 1 timing belt cover by installing the four bolts. Tighten the bolts to

74 inch lbs. (8 Nm).  35. Install the crankshaft pulley. Tighten the bolt to 159 ft. lbs. (215 Nm).  36. Install the No. 2 alternator bracket. Tighten the nut to 21 ft. lbs. (28 Nm). Do not

tighten the pivot bolt at this time.  37. Install the No. 2 right engine mounting bracket and the moving control rod.  38. Install the right engine mounting stay.  39. Connect the two ground wire connectors.  40. Install and adjust the drive belts.  41. Install the coolant reservoir.  42. Install the right front splash shield and wheel assembly.  43. Connect the negative battery cable.  44. Start the vehicle and check for any leaks.  45. Recheck the ignition timing.