Installation
Installation
1. Install crankshaft sprocket "B" into crankshaft.
Caution: Pay special attention to the direction of the flange. If It Is installed in the wrong direction, a broken belt could result.
2. Lightly apply engine oil to the outer surface of spacer, and then install in the direction as shown in illustration.
3. Install counter balance shaft sprocket onto right counter balance shaft, and then tighten flange bolt finger tight.
4. Align timing mark on each sprocket with corresponding timing mark on the front case.
5. When timing belt "B" is installed, make certain that tension side has no slack. Install tensioner "B" with center of pulley located on the left side of mounting bolt and with pulley flange directed toward front of engine.
6. Lift tensioner "B" to tighten timing belt "B" so that its tension side will be pulled tight. In this condition, tighten bolt to secure tensioner "B". When bolt is tightened, use care to prevent shaft from turning together. If shaft is turned together, belt will be overtightened.
7. Check to ensure that timing marks are in alignment.
8. Check to ensure that when center of span on the tension side is depressed with index finger in direction of arrow, deflection of belt is within specification.
Belt deflection 5-7 mm (0.2-0.3 in.)
9. Install flange crankshaft sprocket onto crankshaft. Be sure to install in the direction as shown in illustration.
Caution: Pay attention to direction of flange. If it is installed in wrong direction, a broken belt could result.
10. Insent screwdriver through plug hole in left side of cylinder block to keep shaft in position.
11. Install the oil pump sprocket, and tighten the nut to the specified torque.
12. install the camshaft sprocket and tighten the bolt to the specified torque.
Tightening torque
Camshaft sprocket bolt 80-100 Nm (800-1000 kg.cm, 56-72 lb.ft)
13. lnstall the auto tensioner.
Caution: Leave the wire installed in the auto tensioner
Note: If the auto tensioner rod is in its fully extended position, reset it as follows:
1. Clamp it in the vise with soft jaws in a level position. Apply a plain washer if there is a plug at the bottom of the auto tensioner.
2. Push In the rod slowly with the vise until the set hole A in the rod Is aligned with the set hole B in the cylinder.
14. lnstall the tensioner pulley onto the tensioner arm. And locate the pinhole in the tensioner pulley shaft to the left of the center bolt and then tighten the center bolt finger-tight.
Caution: Leave the wire installed in the auto tensioner.
15. Turn the two sprockets so that their dowel pins are located on top. Then, align the timing marks facing each other with the top surface of the cylinder head.
Note: The same camshaft sprocket is used for the intake and exhaust camshafts and is provided with two timing marks. When the sprocket is mounted on the exhaust camshaft, use the timing mark on the right with the dowel pin hole on top. For the intake camshaft sprocket, use the one on the left with the dowel pin hole on top.
16. Align the crankshaft sprocket timing marks.
17. Align the oil pump sprocket timing marks.
18. Install the timing belt around the tensioner pulley and crankshaft sprocket. Then secure the timing belt onto the tensioner pulley with your left hand.
19. Pulling the belt with your right hand, install it around the oil pump sprocket.
20. Install the belt around the idler pulley.
21. Install it around the intake camshaft sprocket.
22. Turn the exhaust camshaft sprocket one tooth clockwise to align its timing mark with the cylinder head top surface [see illustration in step 5]. Then, pulling the belt with both hands, install it around the exhaust camshaft sprocket.
23. Gently raise the tensioner pulley as shown by the arrow, so that the belt does not sag, and temporarily tighten the center bolt.
24. After turning the crankshaft 1/4 turn counterclockwise, turn it clockwise to move the No.1 cylinder to top dead center.
25. Loosen the center bolt, and then, as shown in the illustration, attach the special tool and a torque wrench and apply a torque of 2.6-2.8 Nm (1.88-2.03 lb.ft.). If the body interferes with the special tool and the torque wrench, use a lack to slightly raise the engine assembly.
Note: Use a torque wrench measuring within a range of 0-3Nm (0-2.2 lb.ft.).
26. Holding the tensioner pulley with the special tool and torque wrench, tighten the center bolt to specification. Screw the special tool into the engine left support bracket until its end makes contact with the tensioner arm. At that point, screw the special tool some more and then remove the set wire attached to the auto tensioner.
27. Remove the special tool.
28. Rotate the crankshaft two complete turns clockwise and leave it as is for about 15 minutes. Then, measure the auto tensioner protrusion "A" (distance between the tensioner arm and auto tensioner body) to ensure that it is up to specification.
Standard value 3.8-4.5 mm (0.15-0.18 in.)
If it is out of specification, repeat steps 25 through 29 until the specified value is obtained.
Note: If the clearance "A" between the tensioner arm and the auto tensioner body cannot be measured (When the engine is mounted on the vehicle, for example), the following alternative method may be used.
1. Screw in the special tool until its end makes contact with the tensioner arm.
2. Starting with that position, screw in the special tool some more to retract the auto tensioner push rod while counting the number of turns of the tool makes until the tensioner arm is brought into contact with the auto tensioner body. Make sure that the number of turns the special tool makes conforms with the standard value.
Standard value 2.5-3 turns
29. Install the rubber plug to the timing belt rear cover.
30. Install the timing belt lower cover and the timing belt upper cover.