Engine Maintenance - Checking Drive Belts
MA-17prose procedureGA series engine (section tab 'GA'). Two belt-routing layouts shown: 'With power steering' and 'Standard' (without P/S). Deflection limits differ for alternator with vs without power steering.
Checking Drive Belts
- 1Inspect for cracks, fraying, wear or oil adhesion. If necessary, replace with a new one.
SMA357C - 2Inspect drive belt deflections by pushing on the belt midway between pulleys.Adjust if belt deflections exceed the limit.Inspect drive belt deflections when engine is cold.
Belt deflection (Unit: mm (in))
Alternator - With power steering
Used belt deflection - Limit11 (0.43)
Used belt deflection - Deflection after adjustment7 - 9 (0.28 - 0.35)
Deflection of new belt6 - 8 (0.24 - 0.31)
Alternator - Without power steering
Used belt deflection - Limit10 (0.39)
Used belt deflection - Deflection after adjustment7 - 9 (0.28 - 0.35)
Deflection of new belt6 - 8 (0.24 - 0.31)
Air conditioner compressor
Used belt deflection - Limit9.5 (0.374)
Used belt deflection - Deflection after adjustment6 - 8 (0.24 - 0.31)
Deflection of new belt5 - 7 (0.20 - 0.28)
Power steering oil pump
Used belt deflection - Limit7.5 (0.295)
Used belt deflection - Deflection after adjustment4 - 6 (0.16 - 0.24)
Deflection of new belt3 - 5 (0.12 - 0.20)
Applied pushing force
Used belt deflection - Limit98 N (10 kg, 22 lb)
Used belt deflection - Deflection after adjustment
Deflection of new belt
IMPORTANT
Inspect drive belt deflections when engine is cold.