Checking Drive Belts
MA-28spec tableBelt routing and deflection specs differ between models with air conditioner and without air conditioner. Section tab on this page reads 'SR' (SR20DE) though page code is MA-28.
Checking Drive Belts
- 1Inspect for cracks, fraying, wear or oil adhesion. If necessary, replace with a new one.
SMA377C - 2Inspect drive belt deflections by pushing on the belt midway between pulleys.
IMPORTANT
Adjust if belt deflections exceed the limit.
| Specification | Value |
|---|---|
| Adjusting bolt | 16 - 22N·m |
Adjusting bolt
16 - 22N·m
Belt deflection
Alternator - With air conditioner compressor
Used belt deflection - Limit11.5 - 12.5 (0.453 - 0.492)
Used belt deflection - Deflection after adjustment7 - 8 (0.28 - 0.31)
Deflection of new belt6.5 - 7.5 (0.256 - 0.295)
Alternator - Without air conditioner compressor
Used belt deflection - Limit12 - 13 (0.47 - 0.51)
Used belt deflection - Deflection after adjustment8 - 9 (0.31 - 0.35)
Deflection of new belt7 - 8 (0.28 - 0.31)
Power steering oil pump
Used belt deflection - Limit6 - 7 (0.24 - 0.28)
Used belt deflection - Deflection after adjustment4 - 5 (0.16 - 0.20)
Deflection of new belt3.5 - 4.5 (0.138 - 0.177)
Applied pushing force
Used belt deflection - Limit98 N (10 kg, 22 lb)
Used belt deflection - Deflection after adjustment98 N (10 kg, 22 lb)
Deflection of new belt98 N (10 kg, 22 lb)
NOTE
Unit: mm (in)
IMPORTANT
Inspect drive belt deflections when engine is cold.