How to replace Timing Belt on Toyota Tacoma?

In this chapter the details to replace Timing Belt, Cover, Sprockets, & Seal is provided.

Its a complete step by step procedure with appropriate diagrams provided for timing belt replacing.

The diagrams provided for :---
Timing belt and related components
Crankshaft alignment before removing timing belt
Check the installation marks on the timing belt-3.4L engine.


Timing Belt, Cover, Sprockets, & Seal
REMOVAL & INSTALLATION Details are as follows:---

5VZ-FE Engine

1. Disconnect the negative battery cable.
   
   CAUTION

   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.
2. Raise and safely support the vehicle.
3. Remove the engine undercover.
4. Drain the engine coolant.
5. Disconnect the upper radiator hose from the engine.
6. Remove the power steering drive belt.
7. Remove the air conditioning drive belt by loosening the idler pulley nut and the adjusting bolt.
8. Loosen the lockbolt, pivot bolt, and the adjusting bolt and the alternator drive belt.
9. Remove the No. 2 fan shroud by removing the 2 clips.
10. Remove the fan with the fluid coupling and fan pulleys.
11. Disconnect the power steering pump from the engine and set aside. Do not disconnect the lines from the pump.
12. If equipped with air conditioning, disconnect the compressor from the engine and set aside. Do not disconnect the lines from the compressor.
13. If equipped with air conditioning, disconnect the air conditioning bracket.
14. Remove the No. 2 timing belt cover, as follows:
    1. Detach the camshaft position sensor connector from the No. 2 timing belt cover.
    2. Disconnect the 3 spark plug wire clamps from the No. 2 timing belt cover.
    3. Remove the 6 bolts and remove the timing belt cover.
15. Remove the fan bracket, as follows:
    1. Remove the power steering adjusting strut by removing the nut.
    2. Remove the fan bracket by removing the bolt and nut.
16. Set the No. 1 cylinder at Top Dead Center (TDC) of the compression stroke, as follows:
    1. Turn the crankshaft pulley and align its groove with the timing mark 0of the No. 1 timing belt cover.
    2. 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 degrees).
       
       NOTE

       If reusing the timing belt, be 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.
17. Remove the timing belt tensioner by alternately loosening the 2 bolts.
18. Remove the camshaft timing pulleys, as follows:
    1. Using SST 09960-10010, or equivalent, remove the pulley bolt, the timing pulley and the knock pin. Remove the 2 timing pulleys with the timing belt.
19. Remove the crankshaft pulley, as follows:
    1. Using SST 09213-54015 and 09330-00021 or their equivalents, loosen the pulley bolt.
    2. Remove the SST tool, the pulley bolt and the pulley.
20. Remove the starter wire bracket and the No. 1 timing belt cover.
21. Remove the timing belt guide and remove the timing belt.
22. Remove the bolt and the No. 2 idler pulley.
23. Remove the pivot bolt, the No. 1 idler pulley and the plate washer.
24. Remove the crankshaft gear.
    
    
    

    

    Fig. Timing belt and related components-3.4L engine
    
    
    
    

    

    Fig. Crankshaft alignment before removing timing belt-3.4L engine
    
    
    
    

    

    Fig. Check the installation marks on the timing belt-3.4L engine

To install:

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

      

      Fig. Tap in the timing gear with the flange side facing inward-3.4L engine
2. Install the plate washer and the No. 1 idler pulley with the pivot bolt and tighten it to 26 ft. lbs. (35 Nm). Check that the pulley bracket moves smoothly.
3. 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.
4. Temporarily install the timing belt, as follows:
   1. Using the crankshaft pulley bolt, turn the crankshaft and align the timing marks of the crankshaft timing pulley and the oil pump body.
      
      
      

      

      Fig. Turn the crankshaft and align the timing marks of the crankshaft timing pulley and the oil pump body, this sets the No.1 piston at TDC compression-3.4L engine
      
      
      
      

      

      Fig. Camshaft sprocket timing mark alignment-3.4L engine
      
      
      
      

      

      Fig. Timing belt installation sequence: b-timing belt front mark; c-left camshaft timing pulley; d-no.2 idler pulley; e-right camshaft timing pulley; f-water pump pulley; g-crankshaft; h-no.1 idler pulley-3.4L engine
      
      
      
      

      

      Fig. Compressing the tensioner plunger-3.4L engine
   2. Align the installation mark on the timing belt with the dot mark of the crankshaft timing pulley.
   3. Install the timing belt on the crankshaft timing pulley, No. 1 idler pulley and the water pump pulleys.
5. Install the timing belt guide with the cup side facing outward.
6. Install the No. 1 timing belt cover and starter wire bracket. Tighten the timing belt cover bolts to 80 inch lbs. (9 Nm).
   
   WARNING

   If any binding is felt when adjusting the timing belt tension by turning the crankshaft, STOP turning the engine, because the pistons may be hitting the valves.
7. Install the crankshaft pulley, as follows:
   1. Align the pulley set key with the key groove of the crankshaft pulley.
   2. Install the pulley bolt and tighten it to 184 ft. lbs. (250 Nm).
8. Install the left camshaft timing pulley.
   1. Install the knock pin to the camshaft.
   2. Align the knock pin hose of the camshaft with the knock pin groove of the timing pulley.
   3. Slide the timing belt pulley on the camshaft with the flange side facing outward. Tighten the pulley bolt to 81 ft. lbs. (110 Nm).
9. 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 0of the No. 1 timing belt cover.
   2. Turn the camshaft to align the knock pin hole of the camshaft with the timing mark of the No. 3 timing belt cover.
   3. Turn the camshaft timing pulley, and align the timing marks of the camshaft timing pulley and the No. 3 timing belt cover.
10. Connect the timing belt to the left camshaft timing pulley, as follows:
    
    NOTE

    Check that the installation mark on the timing belt is aligned with the end of the No. 1 timing belt cover.
    
    
    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. Align the timing marks of the left camshaft pulley and the No. 3 timing belt cover.
    3. Check that the timing belt has tension between the crankshaft timing pulley and the left camshaft timing pulley.
11. 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. 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.
    3. 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 it to 81 ft. lbs. (110 Nm).
12. Set the timing belt tensioner, as follows:
    1. Using a press, slowly press in the pushrod using 220-2205 lbs. (981-9807 N) of force.
    2. Align the holes of the pushrod and housing, pass a 1.5mm hex wrench through the holes to keep the setting position of the pushrod.
       
       
       

       

       Fig. Measure the plunger pushrod protrusion as shown If the protrusion is not within 0.394-0.425 in. (10-10.8mm), replace the tensioner-3.4L engine
    3. Release the press and install the dust boot on the tensioner.
13. Install the timing belt tensioner and alternately tighten the bolts to 20 ft. lbs. (28 Nm). Using pliers, remove the 1.5mm hex wrench from the belt tensioner.
14. Check the valve timing, as follows:
    1. Slowly turn the crankshaft pulley 2 revolutions from TDC to TDC. Always turn the crankshaft pulley clockwise.
    2. Check that each pulley aligns with the timing marks. If the timing marks do not align, remove the timing belt and reinstall it.
15. Install the fan bracket with the bolt and nut.
16. Install the power steering adjusting strut with the nut.
17. Install the No. 2 timing belt cover. Tighten the bolts to 80 inch lbs. (9 Nm). Install the remaining components.
18. Fill the cooling system with coolant.
19. Connect the negative battery cable.
20. Start the engine and check for leaks.

These details will help.

Thanks.

FOR MORE HELP GO TO: ---

Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html