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ENGINE <4D6> -
On-vehicle Service
11C-7
POWER STEERING OIL PUMP DRIVE BELT TENSION
CHECK AND ADJUSTMENT
11100110183
1. Check the tension by pulling or pushing at the centre
of the belt between pulleys with a force of 98 N as shown
in the figure. Measure drive belt deflection amount.
Standard value:
Items When
checked
When a
used belt is
installed
When a new
belt is
installed
Tension N 294 - 490 343 - 441 490 - 686
Deflection
(Reference
value) mm
12.6 - 16.3 13.4 - 15.3 10.0 - 12.6
2. If the tension is outside the standard value, adjust by
the following procedure.
(1) Loosen oil pump fixing bolts A and B. Check that
the slide bushing at the place where bolt B was
installed is touching the A/C bracket and that there
is no looseness in the oil pump mounting.
(2) While holding a bar or similar tool against the oil
pump body, apply a suitable amount of force to the
belt with your hand to adjust the tension of the belt.
(3) Tighten oil pump fixing bolts A and B in that order.
Tightening torque: 39 Nm
(4) Check the belt tension, and readjust if necessary.
Caution
Check after turning the crankshaft once or more
clockwise (right turn).
Power steering
oil pump pulley
Water pump
pulley
Oil pump
A
B