Toyota Celica, Corolla, ECHO & MR2 1999-05

Timing Belt, Cover, Sprockets, & Seal 2

Print

Removal & Installation



7A-FE Engine
  1. Disconnect the negative battery cable. On vehicles equipped with an air bag, wait at least 90 seconds before proceeding.
  2.  



Click image to see an enlarged view

Fig. View of the timing belt, gears and cover along with other related components-7A-FE engine


CAUTION
Work must NOT be started until after 90 seconds from the time the ignition switch is turned to the LOCK position and the negative battery cable has been disconnected. The SRS is equipped with a back-up power source so that if work is started within 90 seconds of disconnecting the negative battery cable, the SRS may deploy. When the negative terminal cable is disconnected from the battery, memory of the clock and radio will be canceled. Before you start working, make a note of the contents memorized by the audio memory system. When you have finished working, reset the audio systems and adjust the clock. Never use a back-up power supply from outside the vehicle.

  1. Loosen the lugnuts on the right front wheel.
  2.  
  3. If equipped with cruise control, remove the cruise control actuator cover, cruise control electrical connector, control cable and the actuator from the vehicle.
  4.  
  5. Raise and support the vehicle safely.
  6.  
  7. Remove the right front wheel and housing cover.
  8.  
  9. Slightly jack up the engine and remove the right-hand engine mounting insulator.
  10.  



Click image to see an enlarged view

Fig. Jack up the engine enough to remove the weight from the RH mounting

  1. Loosen the water pump pulley bolts.
  2.  
  3. Unbolt and remove the alternator.
  4.  
  5. If equipped with A/C, remove the compressor and bracket.
  6.  
  7. Loosen the power steering pump pivot and lock bolts.
  8.  
  9. Push the power steering pump toward the engine and remove the drive belt.
  10.  
  11. Remove the water pump pulley.
  12.  
  13. Unbolt and separate the wire harness protector from the cylinder head.
  14.  
  15. Remove the spark plug wires and the spark plugs from the cylinder head.
  16.  
  17. Remove the two hose clamps, label and extract the PCV hoses from the valve cover.
  18.  
  19. Remove the four cap nuts, the seal washers, the valve cover, and the gasket from the cylinder head.
  20.  
  21. Turn the crankshaft to align the timing mark on crankshaft pulley at 0 , setting the piston in No. 1 cylinder at Top Dead Center (TDC) on the compression stroke. Check that the hole of the camshaft timing pulley is aligned with the timing mark of the bearing cap. If not, turn crankshaft pulley 1 complete revolution (360 degrees).
  22.  



Click image to see an enlarged view

Fig. Verify that the timing mark on the crankshaft pulley is TDC



Click image to see an enlarged view

Fig. Alignment of the hole on the camshaft timing pulley

  1. If necessary, remove the four bolts and retaining the pulley from water pump.
  2.  
  3. While retaining the crankshaft pulley, remove the pulley bolt. Extract the crankshaft pulley using a puller.
  4.  
  5. Unbolt all three timing belt covers from the engine.
  6.  
  7. Slide the timing belt guide from crankshaft.
  8.  



Click image to see an enlarged view

Fig. Slide the timing belt guide off the crankshaft

  1. Set the camshaft and crankshaft timing sprockets to align the marks.
  2.  

Do NOT turn crankshaft or camshaft independently after removal of timing belt. Binding or damage to engine components could result. If timing belt is to be reused, mark timing belt with arrow showing direction of engine revolution. Put matchmarks where timing belt meets with crankshaft timing sprocket and camshaft timing sprocket to ensure installation in the same position.



Click image to see an enlarged view

Fig. Draw an arrow in the direction of the belt if you are reusing the timing belt



Click image to see an enlarged view

Fig. Also mark the points of the belt vs. the gear so the teeth match during installation



Click image to see an enlarged view

Fig. Marked crankshaft timing sprocket

  1. Remove the timing belt tensioner bolt, tensioner, and the tension spring.
  2.  



Click image to see an enlarged view

Fig. Remove the crankshaft timing pulley by prying it off if necessary


WARNING
Do NOT bend, twist or turn the timing belt inside out. Do NOT allow the belt to come in contact with oil, coolant or steam.

  1. Loosen the mounting bolt of the idler pulley and shift the pulley toward the left as far as it will go, them temporarily tighten it.
    1. Remove the timing belt from camshaft and crankshaft timing sprockets.

      Click image to see an enlarged view

      Fig. Loosening the idler pulley mounting bolt while moving it to the far left, then ...



      Click image to see an enlarged view

      Fig. ... lift the belt off the gear assemblies



      Click image to see an enlarged view

      Fig. Then remove the idler pulley

    2.  

  2.  
  3. Remove the camshaft timing sprocket bolt while holding the camshaft by the hexagonal wrench head section.
  4.  


WARNING
Be careful NOT to damage the cylinder head when holding camshaft in place.



Click image to see an enlarged view

Fig. Hold a hexagonal head wrench portion of the camshaft, then remove the bolt and camshaft timing pulley



Click image to see an enlarged view

Fig. The timing pulley should slide off the end of the camshaft

  1. Remove crankshaft timing sprocket using two flat bladed prybars to pry off. Tape the end of the prybars to prevent damaging the crankshaft.
  2.  



Click image to see an enlarged view

Fig. Slide the crankshaft timing pulley off by hand if possible

To install:

  1. Check the camshaft and crankshaft timing sprockets to align the marks. Do NOT turn crankshaft or camshaft independently before installation of the timing belt or engine damage may occur.
  2.  
  3. Install the camshaft timing sprocket. Align the camshaft key with the groove on the sprocket and slide the sprocket on the camshaft; secure with the camshaft timing sprocket bolt. Hold the camshaft at hexagonal wrench head portion to prevent rotation and tighten the camshaft timing sprocket bolt to 43 ft. lbs. (59 Nm).
  4.  

Inspect the camshaft timing sprocket to ensure mark is still aligned as indicated.

  1. Install the crankshaft timing sprocket. Align the pulley set key with the groove of the pulley. Slide the timing pulley on the crankshaft, facing the flange side inward.
  2.  

Inspect the crankshaft timing sprocket to ensure mark is still aligned as indicated.

  1. Temporarily install the idler pulley and tension spring. Install the idler pulley with the bolt. Do NOT tighten the bolt yet. Install the tension spring. Push the pulley toward the left as far as it will go and tighten the bolt.
  2.  
  3. Set the No. 1 cylinder to TDC.
    1. Turn the hexagonal wrench head portion of the camshaft, and align the hole of the camshaft timing pulley with the timing mark of the bearing cap.
    2.  
    3. Using the crankshaft pulley bolt, turn the crankshaft and align the timing marks of the crankshaft pulley and oil pump body.
    4.  

  4.  
  5. Install the timing belt. If reinstalling the old belt, observe the matchmarks made during removal. Make sure the belt is fully and squarely seated on the sprockets.
  6.  
  7. Check the valve timing as follows:
    1. Loosen the retaining bolt for the timing belt tensioner and allow it to tension the belt.
    2.  
    3. Temporarily install the crankshaft pulley bolt and turn the crank clockwise 2 full revolutions from TDC to TDC. Insure that each timing mark realigns exactly.
    4.  
    5. Tighten the timing belt tensioner bolt to 27 ft. lbs. (37 Nm).

      Click image to see an enlarged view

      Fig. On valve timing, make sure each pulley aligns with the timing marks. If not, remove the belt and reinstall

    6.  

  8.  
  9. Measure the timing belt deflection at the SIDE point, looking for 0.20-0.24 inch (5-6mm) of deflection at 4.4 pounds of pressure. If the deflection is not correct, adjust with the timing belt tensioner.
  10.  
  11. Install the timing belt guide, remove the temporarily installed crankshaft pulley bolt. Install the guide with the cup side facing outward, onto the crankshaft and install the timing belt covers from the lowest to the highest. Tighten the nine cover bolts to 62 inch lbs. (7 Nm).
  12.  



Click image to see an enlarged view

Fig. Install the timing belt guide with the cup side facing outwards

  1. Install the crankshaft pulley to the crankshaft after aligning the pulley key with the slot on the pulley; secure with the bolt while holding the crankshaft pulley and tighten the pulley bolt to 87 ft. lbs. (118 Nm).
  2.  
  3. Install the new valve cover gasket and seal washers to the cylinder head cover.
  4.  
  5. Install the cylinder head cover to the cylinder head; secure with four cap nuts to 53 inch lbs. (6 Nm).
  6.  
  7. Install two PCV hoses to the valve cover; secure with hose clamps.
  8.  
  9. Install the spark plugs and spark plug wires.
  10.  
  11. Attach the engine wiring harness to the valve cover, then install the engine wiring harness cover and secure to 53 inch lbs. (6 Nm).
  12.  
  13. Install the water pump pulley but do NOT tighten the bolts at this time.
  14.  
  15. Install the PS pulley and pull the pump back to tighten the drive belt. Tighten the pivot and adjusting bolt to 29 ft. lbs. (39 Nm).
  16.  
  17. If equipped, install the A/C pipe mounting bracket and tighten the bolts to 35 ft. lbs. (47 Nm).
  18.  
  19. Install the A/C compressor and tighten the bolts to 18 ft. lbs. (25 Nm), then attach the compressor connector.
  20.  
  21. Install and secure the alternator.
  22.  
  23. Install the drive belt with the adjusting bolt and install the idler pulley locknut and tighten the nut and adjusting bolt to 29 ft. lbs. (39 Nm).
  24.  
  25. Install the alternator drive belt and tighten the pivot bolt to 45 ft. lbs. (61 Nm), then the adjusting lock bolt to 14 ft. lbs. (19 Nm).
  26.  
  27. Tighten the water pump pulley bolts to 82 inch. lbs. (9 Nm).
  28.  
  29. Install engine mount to body and secure but do NOT tighten fully. Tighten the following:

    Mounting bracket-to-engine mount bolt to 47 ft. lbs. (64 Nm).
     
    Mounting bracket-to-engine mount nuts to 38 ft. lbs. (52 Nm).
     
    Engine mount-to-body bolt A to 19 ft. lbs. (25 Nm).
     
    Engine mount-to-body bolts B to 19 ft. lbs. (25 Nm).
     
    Engine mount-to-body bolt C to 19 ft. lbs. (25 Nm), if equipped with cruise control.
     

  30.  



Click image to see an enlarged view

Fig. RH engine mounting nut and bolt locations-7A-FE engine

  1. Install the right engine undercover.
  2.  
  3. Install the right front wheel and lower the vehicle.
  4.  
  5. If equipped with cruise control, install the actuator.
  6.  
  7. Connect the negative battery cable.
  8.  
  9. Start the engine and check the ignition timing. Inspect for leaks and check vehicle operation.
  10.  

 
label.common.footer.alt.autozoneLogo