Timing Belt: Service and Repair
CAUTION: Continuous exposure with USED engine oil has caused skin cancer in laboratory mice. Protect your skin by washing with soap and water immediately after this work.1. Disconnect the negative battery cable.
2. Remove the splash shield and right front wheel.
3. Remove the drive belts.
4. Remove in the order shown in the image, referring to Removal Note.
5. Install in the reverse order of removal, referring to Installation Note.
Removal Note
P/S oil pump:
1. Remove the bolts shown and secure the P/S oil reservoir away from the engine.
2. Loosen the pulley nut as shown.
3. Remove the pulley.
4. Remove the bolt shown.
5. Remove the bolts shown and remove the P/S oil pump.
6. Position the P/S oil pump away from the engine and secure it with wire.
Crankshaft pulley:
Caution: The crankshaft position sensor rotor is on the rear of the pulley, and can be damaged easily.
1. Install the SST with bolts (M10 x 1.25) to the crankshaft pulley.
2. Remove the crankshaft pulley bolt and the pulley.
Dipstick and pipe:
1. Disconnect the crankshaft position sensor connector.
2. Remove the clip from the dipstick pipe.
3. Remove the dipstick and pipe.
4. Plug the hole in the engine after removing the pipe.
Timing belt cover:
1. Support the engine by using the SST (engine support).
2. Remove the No.3 engine mount.
3. Remove the right and left timing belt covers.
Timing belt:
1. Install the crankshaft pulley bolt into the crankshaft.
2. Turn the crankshaft clockwise so that the No.1 piston is at TDC of the compression stroke.
3. Mark the timing belt rotation on the belt for proper reinstallation.
4. Loosen the auto tensioner bolts and remove the lower bolt.
Caution: When removing the bolt, hold the tensioner so that the bolt holes are aligned, otherwise the threads can be damaged.
5. Remove the No.1 idler pulley and remove the timing belt.
Caution:
- When removing the pulley bolt, hold the pulley so that the bolt holes are aligned, otherwise the threads can be damaged.
- 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.
Timing belt pulley:
Note: If necessary, remove the pulley by using a steering wheel puller.
Inspection
Inspect the following and repair or replace as necessary.
- Timing belt
- Timing belt auto tensioner
- Timing belt pulley
- Camshaft pulleys
Installation Note
Timing belt auto tensioner:
1. Slowly press in the tensioner rod by using a press or a vise.
Caution: Do not press the tensioner rod to more than 9,807 N {1,000 kgf, 2,200 lbf}. It will damage the tensioner.
2. Insert a pin into the second hole in the body as shown to hold the tensioner rod.
Pin diameter: 1.6 mm (0.063 in)
3. Set the tensioner in place and snugly tighten the tensioner upper bolt.
Note: This must be done to reduce the timing belt resistance when the idler pulley is installed.
Timing belt:
1. Turn the camshaft pulleys clockwise and align the timing marks of the camshaft pulleys with those of the cylinder heads.
2. Using the crankshaft bolt, turn the crankshaft clockwise and align the timing marks of the timing belt pulley and the oil pump.
3. With the No.1 idler pulley removed, install the timing belt on the pulleys in the order shown below.
(1) Timing belt pulley
(2) No.2 idler pulley
(3) LH camshaft pulley
(4) Tensioner pulley
(5) RH camshaft pulley
4. Verify that there is tension between pulleys (3) and (1) and between pulleys (1) and (5).
5. Install the No.1 idler pulley while applying the pressure on the timing belt.
Tightening torque: 38-51 N.m (3.8-5.3 kgf.m, 28-38 ft.lbf)
6. Push the auto tensioner in the direction of the arrow and tighten the bolts.
Tightening torque: 19-25 N.m (1.9-2.6 kgf.m, 14-18 ft.lbf)
7. Remove the pin from the auto tensioner to apply tension to the belt.
8. Turn the crankshaft clockwise twice, and align the timing marks.
9. Verify that all timing marks are correctly aligned. If necessary, repeat the procedure beginning from installation of the timing belt auto tensioner.
10. Check the timing belt deflection by applying moderate pressure 98 N (10 kgf, 22 lbf) midway between the timing belt pulley and the tensioner pulley. If not correct, replace the auto tensioner.
Deflection: 6.0-8.0 mm (0.24-0.31 in)
Timing belt cover:
1. Install the right timing belt cover.
Tightening torque: 7.9-10.7 N.m (80-110 kgf.cm, 70-95.4 in.lbf)
2. Install the left timing belt cover.
Tightening torque: 7.9-10.7 N.m (80-110 kgf.cm, 70-95.4 in.lbf)
3. Install the crankshaft position sensor connector bracket on the left timing belt cover.
Tightening torque: 7.9-10.7 N.m (80-110 kgf.cm, 70-95.4 in.lbf)
4. Install the harness bracket on the right timing belt cover.
Tightening torque: 7.9-10.7 N.m (80-110 kgf.cm, 70-95.4 in.lbf)
5. Install the No.3 engine mount.
Tightening torque:
Bolt (A): 75-104 N.m (7.6-10.7 kgf.m, 55-77.3 ft.lbf)
Bolt (B): 86-116 N.m (8.7-11.9 kgf.m, 63-86.0 ft.lbf)
6. Remove the SST (engine support).
Dipstick and Pipe:
1. Apply clean engine oil to a new O-ring and install it on the pipe.
2. Remove the plug from the engine and install the pipe.
Tightening torque: 7.9-10.7 N.m (80-110 kgf.cm, 70-95.4 in.lbf)
3. Install the dipstick.
4. Install the crankshaft position sensor harness and clip to the dipstick pipe.
5. Connect the connector.
Crankshaft pulley:
1. Remove the crankshaft pulley bolt.
2. Install the crankshaft pulley and hand tighten the crankshaft pulley bolt.
3. Install the SST to the crankshaft pulley.
4. Tighten the crankshaft pulley bolt.
Tightening torque: 157-166 N.m (16.0-17.0 kgf.m, 116-122 ft.lbf)
P/S oil pump:
1. Install the P/S oil pump.
Tightening torque:
Bolt (A): 32-46 N.m (3.2-4.7 kgf.m, 24-33 ft.lbf)
Bolt (B): 19-25 N.m (1.9-2.6 kgf.m, 14-18 ft.lbf)
2. Install the P/S oil pump pulley and hand tighten the pulley nut.
3. Tighten the pulley nut by using a 12 mm (0.47 in) socket on one of the P/S oil pump mounting bolts.
Tightening torque: 63-93 N.m (6.4-9.5 kgf.m, 47-68 ft.lbf)
4. Install the P/S oil reservoir and the engine ground.
Tightening torque: 6.9-9.8 N.m (70-100 kgf.cm, 61-86.6 in.lbf)
Steps After Installation
1. Install the drive belts.
2. Install the splash shield and the right front wheel.
3. Perform the necessary engine adjustments.