Suzuki 2000 Grand Vitara SQ416, Service Manual

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YH4
GRAND
VITARA
CRANKING SYSTEM 6G1-5
Condition Possible Cause Correction
Starting motor running
but too slow (small
torque)
If battery and wiring are satisfactory,
inspect starting motor
Insufficient contact of magnetic switch
main contacts
Layer short-circuit of armature
Disconnected, burnt or worn
commutator
Poor grounding of field coil
Worn brushes
Weakened brush springs
Burnt or abnormally worn end bush
Replace magnetic switch.
Replace.
Repair or replace.
Repair.
Replace brush.
Replace spring.
Replace bush.
Starting motor running,
but not cranking engine
Worn pinion tip
Poor sliding of over-running clutch
Over-running clutch slipping
Worn teeth of ring gear
Replace over-running clutch.
Repair.
Replace over-running clutch.
Replace flywheel (M / T) or drive
plate (A / T).
Noise Abnormally worn bush
Worn pinion or worn teeth of ring gear
Poor sliding of pinion (failure in return
movement)
Lack of grease in each part
Replace bush.
Replace over-running clutch or
flywheel (M / T), drive plate (A / T).
Repair or replace.
Lubricate.
Starting motor does not
stop running
Fused contact points of magnetic
switch
Short-circuit between turns of magnetic
switch coil (layer short-circuit)
Failure of returning action in ignition
switch
Replace magnetic switch.
Replace magnetic switch.
Replace.