Timing Belt: Service and Repair
Timing Components:
REMOVAL
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove the high tension leads and spark plugs.
4. Remove the fresh air duct.
5. Remove the drive belts.
6. Remove the A/C compressor idler pulley.
7. Remove the crankshaft pulley.
a. Mount SST# 49 S120 710 on the crankshaft pulley to hold the crankshaft.
b. Remove the crankshaft pulley bolt.
c. Remove the crankshaft pulley.
CAUTION: The crankshaft position sensor rotor is on the rear of the crankshaft pulley, and can be damaged easily.
8. Remove the coolant bypass hose.
9. Remove the upper radiator hose.
10. Remove the timing belt cover.
11. Remove the upper idler pulley.
12. Remove the timing belt auto tensioner.
13. Install the crankshaft pulley lock bolt and hand tighten it.
14. Turn the crankshaft to align the timing marks on the pulleys.
15. Mark the timing belt rotation for proper reinstallation.
16. Remove the timing belt.
CAUTION: The following will damage the belt and shorten its life; Forcefully twisting it, turning it inside out, bending it, or allowing oil or grease on it.
17. Remove the crankshaft pulley lock bolt.
INSTALLATION
1. Install the timing belt auto tensioner.
a. Set a plain washer at the bottom of the tensioner body to prevent damage to the body plug.
b. Press in the tensioner rod slowly by using a press.
CAUTION: Pressing the tensioner rod with more than 9,807 Nm (2,200 lbs.) can damage the tensioner spring.
c. Insert a pin to hold the tensioner rod in the body as shown.
d. Install the auto tensioner to the cylinder block.
Tightening torque: 19-25 Nm (14-18 ft. lbs.)
2. Install the timing belt.
a. Install the crankshaft pulley lock bolt and hand tighten it.
b. Turn the camshaft pulleys clockwise and align the timing marks.
c. Position the timing belt in the original direction, and hang it on each pulley in the order shown.
CAUTION: The following will damage the belt and shorten its life; Forcefully twisting it, turning it inside out, bending it, or allowing oil or grease on it.
d. Install the upper idler pulley.
Tightening torque: 38-51 Nm (28-38 ft lbs.)
e. Turn the crankshaft clockwise twice and align the timing marks.
f. Check that the timing marks are correctly aligned. If not, repeat steps b-e.
g. Remove the pin from the auto tensioner.
h. Turn the crankshaft clockwise twice and align the timing marks.
i. Reconfirm that the timing marks are correctly aligned.
j. Check the timing belt deflection by applying moderate pressure 98 N (22 lbs.) midway between the timing belt pulley and the auto tensioner. If not correct, repeat the adjustment from step e.
Timing belt deflection: 5-7 mm (0.2-0.27 in)
k. Remove the crankshaft pulley lock bolt.
3. Install the timing belt cover.
^ Install the timing belt covers along with new gaskets.
^ Tighten the bolts in the order shown.
Tightening torque:
M6: 7.9-10.7 Nm (70-95 in lbs.)
M10: 38-51 Nm (28-38 ft. lbs.)
4. Install the crankshaft pulley.
a. Install the crankshaft pulley and hand tighten the pulley lock bolt.
CAUTION: The crankshaft position sensor rotor is on the rear of the crankshaft pulley, and can be damaged easily.
b. Mount SST# 49 S120 710 on the crankshaft pulley to hold the crankshaft.
c. Tighten the crankshaft pulley lock bolt.
Tightening torque: 157-166 Nm (116-122 ft lbs.)
5. Install the upper radiator hose and coolant bypass hose.
6. Install the A/C compressor idler pulley.
7. Install the drive belts.
8. Install the cooling fan and radiator cowling.
9. Install the fresh air duct.
10. Install the high tension lead wires and the spark plugs.
11. Fill the radiator and coolant reservoir with the specified amount and type of engine coolant.
12. Connect the negative battery cable.
13. Start the engine and check the following:
^ check the engine oil and engine coolant leakage.
^ check the ignition timing and idle speed.