Timing Belt: Service and Repair

REMOVAL

1) Disconnect negative cable at battery.





2) Remove power steering pump belt or A/C compressor belt, if equipped.

3) Remove radiator cooling fan, water pump pulley, water pump drive belt and fan shroud. If it is hard to remove fan shroud, drain engine coolant and then disconnect radiator inlet hose from radiator.





4) Remove crankshaft pulley by removing the 5 pulley bolts.





5) Remove timing belt outside cover.





6) For installation of timing belt, align the 4 timing marks as shown in figure by turning crankshaft.





7) Remove timing belt tensioner, tensioner plate, tensioner spring and timing belt.





CAUTION:
^ After timing belt is removed, never turn camshaft and crankshaft independently more than such an extent as shown in figure. If turned, interference may occur among piston and valves, and parts related to piston and valves may be damaged.
^ Never bend timing belt.

INSPECTION





^ Inspect timing belt for wear or cracks. Replace it as necessary.





^ Inspect tensioner for smooth rotation.





INSTALLATION





1) Install tensioner plate to tensioner. Insert lug of tensioner plate into hole in tensioner.





2) Install tensioner and tensioner plate:
Do not tighten tensioner bolt with wrench yet. Hand tighten only at this time. Check to ensure that plate movement in arrow direction as shown in figure causes tensioner to move in the same direction. If no associated movement between plate and tensioner occurs, remove tensioner and plate again and reinsert plate lug into tensioner hole.





3) Check that timing mark on camshaft timing belt pulley is aligned with "V" mark on cylinder head cover. If not, align two marks by turning camshaft but be careful not to turn it more than its allowable turning range.





4) Check that the punch mark on crankshaft timing belt pulley is aligned with arrow mark on oil pump case. If not, align the two marks by turning crankshaft but be careful not to turn it more than its allowable turning range.





5) Install timing belt and tensioner spring. With two sets of marks aligned and tensioner plate pushed up, install timing belt on two pulleys in such a way that drive side of belt is free from any slack. And then install tensioner spring as shown in figure, and hand-tighten tensioner stud.

NOTE:
^ When installing timing belt, match arrow mark on timing belt with rotating direction of crankshaft.
^ In this state, No. 4 piston is at top dead center of compression stroke.





6) To take up slack of timing belt, turn crankshaft two rotations clockwise after installing it. After making sure that the belt is free from slack, tighten tensioner stud first and then tensioner bolt to each specified torque. Then confirm again that the two sets of marks are aligned respectively.

Tightening Torque:
(a): 9-12 N-m (0.9-1.2kg-m, 7.0-8.5 lb-ft)
(b): 22-28 N-m (2.2-2.8 kg-m, 16.0-20.0 lb-ft)





7) Install timing belt outside cover.
Before installing, make sure that the seal is between the water pump and oil pump case.

Tightening Torque:
(a): 9-12 N-m (0.9-1.2 kg-m. 7.0-8.5 lb-ft)





8) Install crankshaft pulley.
Fit keyway of pulley to key on crank timing belt pulley, and tighten the 5 bolts to specified torque.

Tightening Torque:
(a): 14-18 N-m (1.4-1.8 kg-m, 10.5-13.0 lb-ft)

9) Install radiator fan shroud, water pump pulley, cooling fan and water pump drive belt. Adjust water pump drive belt tension.

10) Install power steering pump belt or A/C compressor belt, if equipped. Adjust its belt tension.