Maintenance Manual

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Checking Drive Belts

NHMA0007

SMA171D

1. Inspect belts for cracks, fraying, wear and oil. If necessary,

replace.

2. Inspect drive belt deflection or tension at a point on the belt

midway between pulleys.

I Check belt tension using belt tension gauge (BT3373-F or

equivalent).

I Inspect drive belt deflection or tension when engine is

cold.

Adjust if belt deflection exceeds the limit or if belt tension is

not within specifications.

I Drive belt tension can also be checked at other points on

the belts.

Belt deflection and tension:

Deflection adjustment Unit: mm (in) Tension adjustment*1 Unit: N (kg, lb)

Used belt

New belt

Used belt

New belt

Limit After adjustment Limit After adjustment

Alternator and

air conditioner

compressor

7 (0.28)

4.2 - 4.6

(0.165 - 0.181)

3.7 - 4.1

(0.146 - 0.161)

294 (30, 66)

730 - 818

(74.5 - 83.5,

164 - 184)

838 - 926

(85.45 - 94.43,

188.4 - 208.2)

Power steer-

ing oil pump

11 (0.43)

7.3-8

(0.287 - 0.315)

6.5 - 7.2

(0.256 - 0.283)

196 (20, 44)

495 - 583

(50.5 - 59.5,

111 - 131)

603 - 691

(61.5 - 70.5,

136 - 155)

Applied push-

ing force

98 N (10 kg, 22 lb) —

*1: If the belt tension gauge cannot be installed at check points shown, check drive belt tension at a different location on the belt.

IDX

ENGINE MAINTENANCE

Checking Drive Belts

MA-13