Toyota Pick-ups/Land Cruiser/4Runner 1989-1996

Timing Belt

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REMOVAL & INSTALLATION



If you operate your vehicle under conditions of extensive idling and or low speed driving for long periods of time; such as a taxi, police or delivery service, replace the belt every 60,000 miles (96,000 km).

3VZ-E Engine

See Figures 1 through 10


WARNING
This procedure requires tools which may not be in your tool box. Pulley extractors and a counter-holding bar are required. Do not attempt the procedure without these tools available.



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Fig. Fig. 1: Exploded view of the 3VZ-E engine timing belt routing

  1. Disconnect the negative battery cable and drain the coolant.
  2.  
  3. Remove the radiator and shroud.
  4.  


CAUTION
When draining coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain coolant into a sealable container. Coolant may be reused unless it is contaminated or several years old.

  1. Remove the power steering belt and pump.
  2.  
  3. Remove the spark plugs.
  4.  

  1. Disconnect the air hoses at the air pipe.
  2.  
  3. Disconnect the water bypass hose at the air pipe and then remove the water outlet.
  4.  
  5. Remove the air conditioning belt. Remove the alternator drive belt, fluid coupling, guide and fan pulley.
  6.  
  7. Disconnect the high tension cords and their clamps at the upper timing belt cover and then remove the cover and its three gaskets.
  8.  
  9. Rotate the crankshaft pulley until the groove on its lip is aligned with the 0 on the lower timing belt cover. This should set the No. 1 cylinder at TDC of its compression stroke. The matchmarks on the camshaft timing pulleys must be in alignment with those on the upper rear timing cover. If not, rotate the engine 360° (one complete revolution).
  10.  
  11. Remove the power steering pulley. Use the counter-holding tool to aid in removal of the crank pulley bolt. Remove the crankshaft pulley using a puller.
  12.  
  13. Remove the fan pulley bracket and then remove the lower timing belt cover.
  14.  
  15. If the belt is to be reused after removal, mark an arrow on the belt showing the direction of rotation. Make matchmarks on the side of the belt and the flanges of each pulley. These marks will be important at reassembly.
  16.  



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Fig. Fig. 2: Mark the position of the belt if it is to be reused

  1. Remove the timing belt guide and remove the tension spring.
  2.  



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Fig. Fig. 3: Remove the tension spring

  1. Loosen the idler pulley bolt and shift the idler to the left as far as it will go. Temporarily tighten the bolt and release tension from the belt. Slide the belt off the pulleys.
  2.  



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Fig. Fig. 4: Move the tensioner all the way to the left, then tighten the bolt

  1. Protect the belt at all times. Do not bend, twist or turn the belt inside out. Do not allow the belt to contact oil, grease or water.
  2.  
  3. Examine the belt closely for cracking, loose teeth, separation or wear on the edges. If the belt is not virtually perfect, replace it.
  4.  
  5. Check the idler pulleys for smoothness of rotation. Inspect the tension spring; correct length is 2.15 in. (54.6mm).
  6.  



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Fig. Fig. 5: Measure the length of the tension spring

To install:
  1. Make absolutely certain the marks on the camshaft pulleys are aligned with the marks on the rear belt cover. Check the lower belt pulley; align its mark with the mark on the oil pump housing.
  2.  
  3. Install the timing belt onto the cam pulleys, idler pulley, water pump pulley and crank pulley. If reusing the original belt, take great care to align all the marks made before removal.
  4.  



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Fig. Fig. 6: Inspect the belt for any signs of damage

  1. Loosen the idler pulley bolt; move it as far to the right as it will go. Temporarily tighten it in position.
  2.  
  3. Install the tension spring. Loosen the idle pulley bolt to the point that the idler pulley moves with the tension of the spring.
  4.  
  5. Temporarily install the crankshaft pulley bolt. Turn the crankshaft clockwise two complete revolutions from TDC to TDC. Check that the mark on each pulley aligns exactly with the matching marks on the covers or housing.
  6.  



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Fig. Fig. 7: Always turn the engine in a clockwise direction



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Fig. Fig. 8: After rotating the engine, ALL the timing marks must align perfectly

  1. Tighten the idler pulley bolt to 27 ft. lbs. (37 Nm).
  2.  
  3. Remove the crank pulley bolt. Install the belt guide on the crankshaft pulley. The cupped side faces outward.
  4.  



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Fig. Fig. 9: Install the belt guide with the cupped side out

  1. Install the bottom belt cover with the two gaskets.tighten the bolts to (5 Nm).
  2.  
  3. Install the fan pulley bracket and tighten it to 30 ft. lbs. (41 Nm).
  4.  
  5. Install the upper cover and tighten the bolts 48 inch lbs. (5 Nm).
  6.  
  7. Position the crankshaft pulley so the groove in the pulley is aligned with the woodruff key in the crankshaft. Tighten the bolt to 181 ft. lbs. (245 Nm).
  8.  
  9. Install the fan pulley, guide, fluid coupling and alternator drive belt. Adjust the belt tension.
  10.  
  11. Install the power steering pump and belt. Install the air conditioning belt. Adjust the belt tension.
  12.  
  13. Apply sealant to the contact surface of the water outlet. Install the water outlet and connect the bypass hose. Connect the air hoses.
  14.  



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Fig. Fig. 10: Apply sealant to the water outlet before installation

  1. Install the spark plugs.
  2.  
  3. Install the radiator and fill with coolant.
  4.  
  5. Road test the vehicle. Check for leaks. Recheck the ignition timing.
  6.  

5VZ-FE Engine
  1. Disconnect the negative battery cable.
  2.  


CAUTION
On vehicles with air bags, work must be started after 90 seconds from the time the ignition switch is turned to the LOCK position and the negative (-) battery cable is disconnected.

  1. Raise and safely support the vehicle.
  2.  
  3. Remove the engine under cover.
  4.  
  5. Drain the engine coolant.
  6.  

  1. Disconnect the upper radiator hose from the engine.
  2.  
  3. Remove the Power Steering (P/S) drive belt as follows:
    1. Loosen the fan pulley mounting nuts.
    2.  
    3. Loosen the lock bolt, pivot bolt, and the adjusting bolt. Remove the drive belt from the engine.
    4.  

  4.  
  5. Remove the A/C drive belt by loosening the idler pulley nut and the adjusting bolt.
  6.  
  7. Loosen the lock bolt, pivot bolt, and the adjusting bolt and the alternator drive belt.
  8.  
  9. Remove the fan shroud by removing the two clips.
  10.  
  11. Remove the fan with the fluid coupling and fan pulleys.
  12.  
  13. Disconnect the P/S pump from the engine and set aside. Do not disconnect the lines from the pump.
  14.  
  15. If equipped with A/C, disconnect the compressor from the engine and set aside. Do not disconnect the lines from the compressor.
  16.  
  17. If equipped with A/C, disconnect the A/C bracket.
  18.  
  19. Remove the No. 2 timing belt cover as follows:
    1. Disconnect the camshaft position sensor connector from the No. 2 timing belt cover.
    2.  
    3. Disconnect the three spark plug wire clamps from the No. 2 timing belt cover.
    4.  
    5. Remove the six bolts and remove the timing belt cover.
    6.  

  20.  
  21. Remove the fan bracket as follows:
    1. Remove the power steering adjusting strut by removing the nut.
    2.  
    3. Remove the fan bracket by removing the bolt and nut.
    4.  

  22.  
  23. Set the No. 1 cylinder at TDC of the compression stroke as follows:
    1. Turn the crankshaft pulley and align its groove with the timing mark 0 of the No. 1 timing belt cover.
    2.  
    3. Check that the timing marks of the camshaft timing pulleys and the No. 3 timing belt cover are aligned. If not, turn the crankshaft pulley one revolution (360°).
    4.  

  24.  

If re-using the timing belt, make sure that you can still read the installation marks. If not, place new installation marks on the timing belt to match the timing marks of the camshaft timing pulleys.

  1. Remove the timing belt tensioner by alternately loosening the two bolts.
  2.  
  3. Using SST 09960-10010 or equivalent, remove the pulley bolt, the timing pulley and the knock pin. Remove the two timing pulleys with the timing belt.
  4.  
  5. Remove the crankshaft pulley as follows:
    1. Using SST 09213-54015 and 09330-00021, or equivalent, loosen the pulley bolt.
    2.  
    3. Remove the SST tool, the pulley bolt, and the pulley.
    4.  

  6.  
  7. Remove the starter wire bracket and the No. 1 timing belt cover.
  8.  
  9. Remove the timing belt guide and remove the timing belt.
  10.  
  11. Remove the bolt and the No. 2 idler pulley.
  12.  
  13. Remove the pivot bolt, the No. 1 idler pulley, and the plate washer.
  14.  
  15. Remove the crankshaft gear.
  16.  

To install:
  1. Install the crankshaft timing gear as follows:
    1. Align the timing pulley set key with the key groove of the gear.
    2.  
    3. Using SST 09214-60010, or equivalent, and a hammer, tap in the timing gear with the flange side facing inward.
    4.  

  2.  
  3. Install the plate washer and the No. 1 idler pulley with the pivot bolt and tighten to 26 ft. lbs. (35 Nm). Check that the pulley bracket moves smoothly.
  4.  
  5. Install the No. 2 timing belt idler with the bolt. Tighten the bolt to 30 ft. lbs. (40 Nm). Check that the pulley bracket moves smoothly.
  6.  
  7. Temporarily install the timing belt.
    1. Using the crankshaft pulley bolt, turn the crankshaft and align the timing marks of the crankshaft timing pulley and the oil pump body.
    2.  
    3. Align the installation mark on the timing belt with the dot mark of the crankshaft timing pulley.
    4.  
    5. Install the timing belt on the crankshaft timing pulley, No. 1 idler, and the water pump pulleys.
    6.  

  8.  
  9. Install the timing belt guide with the cup side facing outward.
  10.  
  11. Install the No. 1 timing belt cover and starter wire bracket. Tighten the timing belt cover bolts to 80 inch lbs. (9 Nm).
  12.  
  13. Install the crankshaft pulley as follows:
    1. Align the pulley set key with the key groove of the crankshaft pulley.
    2.  
    3. Install the pulley bolt and tighten it to 184 ft. lbs. (250 Nm).
    4.  

  14.  
  15. Install the left camshaft timing pulley as follows:
    1. Install the knock pin to the camshaft.
    2.  
    3. Align the knock pin hole of the camshaft with the knock pin groove of the timing pulley.
    4.  
    5. Slide the timing pulley on the camshaft with the flange side facing outward. Tighten the pulley bolt to 81 ft. lbs. (110 Nm).
    6.  

  16.  
  17. Set the No. 1 cylinder to TDC of the compression stroke as follows:
    1. Turn the crankshaft pulley, and align its groove with the timing mark 0 of the No. 1 timing belt cover.
    2.  
    3. Turn the camshaft, align the knock pin hole of the camshaft with the timing mark of the No. 3 timing belt cover.
    4.  
    5. Turn the camshaft timing pulley, align the timing marks of the camshaft timing pulley and the No. 3 timing belt cover.
    6.  

  18.  
  19. Connect the timing belt to the left camshaft timing pulley. Check that the installation mark on the timing belt is aligned with the end of the No. 1 timing belt cover as follows:
    1. Using SST 09960-01000 or equivalent, slightly turn the left camshaft timing pulley clockwise. Align the installation mark on the timing belt with the timing mark of the camshaft timing pulley, and hang the timing belt on the left camshaft timing pulley.
    2.  
    3. Align the timing marks of the left camshaft pulley and the No. 3 timing belt cover.
    4.  
    5. Check that the timing belt has tension between the crankshaft timing pulley and the left camshaft timing pulley.
    6.  

  20.  
  21. Install the right camshaft timing pulley and the timing belt as follows:
    1. Align the installation mark on the timing belt with the timing mark of the right camshaft timing pulley, and hang the timing belt on the right camshaft timing pulley with the flange side facing inward.
    2.  
    3. Slide the right camshaft timing pulley on the camshaft. Align the timing marks on the right camshaft timing pulley and the No. 3 timing belt cover.
    4.  
    5. Align the knock pin hole of the camshaft with the knock pin groove of the pulley and install the knock pin. Install the bolt and tighten to 81 ft. lbs. (110 Nm).
    6.  

  22.  
  23. Set the timing belt tensioner as follows:
    1. Using a press, slowly press in the pushrod using 220-2,205 lbs. (981-9,807 N) of force.
    2.  
    3. Align the holes of the pushrod and housing, pass a 1.5 mm hexagon wrench through the holes to keep the setting position of the pushrod.
    4.  
    5. Release the press and install the dust boot to the tensioner.
    6.  

  24.  
  25. Install the timing belt tensioner and alternately tighten the bolts to 20 ft. lbs. (28 Nm). Using pliers, remove the 1.5 mm hexagon wrench from the belt tensioner.
  26.  
  27. Check the valve timing as follows:
    1. Slowly turn the crankshaft pulley two revolutions from the TDC to TDC. Always turn the crankshaft pulley clockwise.
    2.  
    3. Check that each pulley aligns with the timing marks. If the timing marks do not align, remove the timing belt and reinstall it.
    4.  

  28.  
  29. Install the fan bracket with the bolt and nut.
  30.  
  31. Install the power steering adjusting strut with the nut.
  32.  
  33. Install the No. 2 timing belt cover. Tighten the bolts to 80 inch lbs. (9 Nm).
  34.  
  35. Connect the three clamps for the spark plug wires to the No. 2 timing belt cover.
  36.  
  37. Connect the camshaft position sensor connector to the No. 2 timing belt cover.
  38.  
  39. If equipped, install the A/C compressor bracket.
  40.  
  41. If equipped, install the A/C compressor.
  42.  
  43. Install the fan with the fluid coupling and fan pulleys. Tighten the nuts to 48 inch lbs. (6 Nm).
  44.  
  45. Install the fan shroud.
  46.  
  47. Install the alternator drive belt.
  48.  
  49. Install the cooling fan and tighten the nuts to 4 ft. lbs. (6 Nm).
  50.  
  51. If equipped, install and adjust the A/C drive belt.
  52.  
  53. Install the P/S pump, pump pulley, and the drive belt.
  54.  
  55. Connect the upper radiator hose.
  56.  
  57. Install the engine undercover.
  58.  
  59. Fill the cooling system with coolant.
  60.  
  61. Connect the negative battery cable.
  62.  
  63. Start the engine and check for leaks.
  64.  

 
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