Distributor: Testing and Inspection
INSPECTION OF IGNITION COIL1. INSPECT PRIMARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
Primary coil resistance (cold): 0.4 - 0.5 Ohms
2. INSPECT SECONDARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the positive (+) terminal and high-tension terminal.
Secondary coil resistance (cold): 7.7 - 10.4 kOhms
INSPECTION OF IIA
1. INSPECT AIR GAP
Using a feeler gauge, measure the gap between the signal rotor and the pick-up coil projection.
Air gap: 0.2 - 0.4 mm (0.008 - 0.016 in.)
2. INSPECT SIGNAL GENERATOR (PICKUP) COIL
Using an ohmmeter, measure the resistance of the pickup coil.
Pickup coil resistance: 130 - 190 Ohms
If the resistance is not correct, replace the pickup coil and the breaker assembly.
3. INSPECT VACUUM ADVANCE
(a) Disconnect the vacuum hose and connect a vacuum pump to the diaphragms.
(b) Apply vacuum and check that the vacuum advance moves.
If the vacuum advance does not work, repair or replace as necessary.
4. INSPECT GOVERNOR ADVANCE
(a) Turn the rotor shaft counterclockwise, release it and check that the rotor returns slightly clockwise.
(b) Check that the rotor shaft is not excessively loose.