Isuzu 4LE2, Workshop Manual

Page: 69 / 121

66
ENGINE
Camshaft assembly
1. Apply engine oil to the inside of the bearing of
the cylinder block, and then install the camshaft
assembly.
Note:
When installing the assembly, care should be taken not
to damage the bearing.
2. After installation of the snap ring to the outside of
the front bearing, check to see if the camshaft
rotates smoothly.
Cam gear and sleeve
1. Install the cam gear to the camshaft so that the tim-
ing point (a dot mark “
•
“) comes to the front side.
2. With the flyweight installed, tighten the cam gear
with a lock nut.
N·m (kgf·m/ft. lb)
3. Apply engine oil to the shaft of the sleeve and the
slide of the flyweight.
4. With the lip of the sleeve placed in the cavity of the
flyweight, insert the shaft of the sleeve into the tip
end of the camshaft.
Note:
Check to see if the sleeve moves smoothly.
Cam gear
Timing point
Sleeve
Fly weight
Lock nut
Tightening torque 69 - 88 (7.0 - 9.0 / 51 - 65)
Idle Gear
Install the idler gear shaft with the oil hole facing up-
ward.
Lubricate the shaft with oil.
Install the idler gear.
Align the timing marks as shown in the illustration.
Install the thrust collar and tighten the bolts to the
specified torque.
N·m (kgf·m/ft. lb)
Idle gear shaft
Timing point
Idle gear
Timing point
Thrust collar
Cam gear
Timing point
Crank gear
Idle gear
Tightening torque 21 - 30 (2.1 – 3.1 / 15 – 22)
Fig. 129
Fig. 130
Fig. 131
Fig. 132