149
Possible symptoms do to starting system trouble would
be as follows:
Starting motor does not run (or runs slowly)
Starting motor runs but fails to crank engine
Abnormal noise is heard
Proper diagnosis must be made To determine exactly
where the cause of each trouble lies, in battery, wiring
harness, (including ignition switch), starter motor or
engine. Check the following items and narrow down
scope of possible causes.
Condition of trouble
Tightness of battery terminals (including
ground cable connection on engine side) and
starter motor terminals
Discharge of battery
Condition Possible Cause Correction
Motor Not Running No operating sound of magnetic switch
1. Dead battery
2. Battery voltage too low due to battery deteriora-
tion
3. Poor contact in battery terminal connection
4. Loose grounding cable connection
5. Fuse loose or blown
6. Poor contacting action of ignition switch
7. Lead wire coupler loose in place
8. Open–circuit between ignition switch and mag-
netic switch
9. Open–circuit in pull–in coil
10. Poor sliding of plunger
Recharge Battery
Replace battery
Retighten or replace
Retighten
Tighten or replace
Replace
Retighten
Repair
Replace magnetic switch
Replace
Motor Not Running Operating sound of magnetic switch heard
1. Dead Battery
2. Battery voltage too low due to battery deteriora-
tion
3. Loose battery cable connections
4. Burnt main contact point, or poor contacting
action of magnetic switch
5. Brushes not seated properly or worn out
6. Weakened brush spring
7. Burnt commutator
8. Poor grounding of field coil
9. Layer short–circuit of armature
10. Crankshaft rotation obstructed
Recharge battery
Replace battery
Retighten
Replace magnetic switch
Repair or replace
Replace
Replace
Repair
Replace
Repair
To Next Page
Loading...
Need help?
General
