Distributor: Testing and Inspection

NOTICE: "Cold" and "Hot" in the following sentences express the temperature of the coils themselves.
"Cold" is from - 10°C (14°F) to 50°C (104°F) and
"Hot" is from 50°C (104°F) to 100°C (212°F).

1. DISCONNECT DISTRIBUTOR CONNECTOR.
2. REMOVE DISTRIBUTOR CAP.
3. REMOVE ROTOR.
4. REMOVE IGNITION COIL DUST COVER.





5. INSPECT PRIMARY COIL RESISTANCE.
- Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.

Primary coil resistance:
Cold: 0.36 - 0.55 0hms
Hot: 0.45 - 0.85 0hms

- If the resistance is not as specified, replace the ignition coil.





6. INSPECT SECONDARY COIL RESISTANCE.
- Using an ohmmeter, measure the resistance between positive (+) and high-tension terminals.

Secondary coil resistance:
Cold: 9.0 - 15.4 k Ohms
Hot: 11.4 - 18.1 k Ohms

- If the resistance is not as specified, replace the ignition coil.





7. INSPECT AIR GAP.
- Using a feeler gauge, measure the air gap between the signal rotor and pickup coil projection.

Air gap: 0.2 - 0.4 mm (0.008 - 0.016 in)

- If the air gap is not as specified, replace the distributor housing assembly.





8. INSPECT SIGNAL GENERATOR (PICKUP COIL) RESISTANCE.
- Using an ohmmeter, measure the resistance between the terminals.

Pickup coil resistance:
Cold G (+) and G (-): 185 - 275 Ohms
Hot G (+) and G (-): 240 - 325 Ohms

- If the resistance is not as specified, replace the distributor housing assembly.
9. REINSTALL IGNITION COIL DUST COVER.
10. REINSTALL ROTOR.
11. REINSTALL DISTRIBUTOR CAP.
12. RECONNECT DISTRIBUTOR CONNECTOR.