Operation CHARM: Car repair manuals for everyone.

Distributor: Testing and Inspection


DISTRIBUTOR 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 (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).

1. Disconnect distributor connector.
2. Remove distributor cap without disconnecting high-tension cords
. 3. Remove rotor.
4. Inspect air gaps.

G1 And G2 Pickups:







Using a thickness gauge, measure the gap between the signal rotor and the pickup coil projection.

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

If the gap is not as specified, replace the distributor housing.
5. Inspect signal generator (pickup coil) resistance.




Using an ohmmeter, check that the resistance of the pickup coil.

Pickup coil resistance:
Cold:
G1 and G(-): 185 - 275 ohm
G2 and G(-): 185 - 275 ohm
NE and G(-): 185 - 275 ohm
Hot:
G1 and G(-): 240 - 325 ohm
G2 and G(-): 240 - 325 ohm
NE and G(-): 240 - 325 ohm


If the resistance is not as specified, replace the distributor housing.
6. Reinstall rotor.
7. Reinstall distributor cap.
8. Reconnect distributor connector.