| TECHNICAL SUPPORT |
For specific enquiries e-mail:
technical@autoelectro.co.uk
Below are two examples of our technical support helpline topics |
| ALTERNATOR: Fault finder check list
|
| Problem:
|
Warning light remains on
|
| Possible causes:
|
1 Check the fan belt is not slipping
2 Check the +ve and -ve supply to the alternator
3 Ensure warning light cicuit is not down to earth
4 Suppressor fitted incorrectly
5 Terminals on alternator and / or wiring burnt. |
| Problem:
|
No warning light
|
| Possible causes:
|
1 Check bulb has not blown
2 Poor or burnt connectors to alternator
3 Break in warning light circuit wiring to instruments
4 Check ignition fuse for instrumentation |
| Problem: |
Alternator undercharging |
| Possible causes: |
1 Slipping fan belt
2 Poor earth to alternator
3 Poor supply to alternator |
| General Checks: |
1 Ingress of oil burns out the alternator
2 Over tightened fan belt bearings become noisy
3 Wrong spacers on pulley
4 Brackets broken |
| STARTER MOTOR Fault finder check list |
| Problem:
|
Starter will not turn |
| Possible causes: |
1 Poor connections to starter
2 Check +ve and –ve supply to starter
3 Less than 12V to solenoid exciter terminal due to worn ignition
switch or broken wiring
4 Flat battery
|
| Problem:
|
Starter turns slowly or makes grating noise
|
| Possible causes:
|
1 Vehicle timing out of specification
2 Poor supply to starter
3 Gearbox bush worn on free floating starter
4 Poor engine earth |
| Problem: | Starter motor sticks |
| Possible causes:
|
1 Excessive clutch dust on starter
2 Worn ring gear on car
3 Ignition switch sticking and not returning |
| A Quick Test: |
Place starter tightly in a vice. Use a 12V battery and jump leads. Connect –ve
side to starter body and +ve to main feed on starter. With an insulated
screwdriver arc across the main feed and solenoid exciter terminal. Starter
should throw in and turn at speed
|