Filter
Top Products
ENGINE <4D6> -
On-vehicle Service
ENGINE <4D6> -
On-vehicle Service
11C-6
ON-VEHICLE SERVICE
11100090449
DRIVE BELT TENSION CHECK AND
ADJUSTMENT
ALTERNATOR DRIVE BELT TENSION CHECK
Use a belt tension gauge to check that the belt tension is
at the standard value at a point half-way between the two
pulleys as shown in the illustration. In addition, press this
section with a force of 98 N and check that the amount of
belt deflection is at the standard value.
Standard value:
Tension N 343 - 490
Deflection (Reference Portion A 8.0 - 10.0
value) mm
Portion B 7.9 - 9.9
ALTERNATOR DRIVE BELT TENSION ADJUSTMENT
1. Loosen the nut of the alternator pivot bolt.
2. Loosen the lock bolt.
3. Use the adjusting bolt to adjust the belt tension and belt
deflection to the standard values.
Standard value:
Items When a
used belt is
installed
When a new
belt is
installed
Tension N 392 - 490 490 - 588
Deflection Portion A 8.0 - 9.4 7.0 - 8.0
(Reference
value) mm
Portion B 7.9 - 9.2 6.8 - 7.9
4. Tighten the lock bolt.
Tightening torque: 23 Nm
5. Tighten the nut of the alternator pivot bolt.
Tightening torque: 44 Nm
6. Tighten the adjusting bolt.
Tightening torque: 10 Nm
Caution
Check after turning the crankshaft once or more
clockwise (right turn).
Alternator
pulley
Water pump
pulley
Crankshaft
pulley
A
B
Adjusting bolt
Lock
bolt
Pivot bolt