370

IGNITION SYSTEM —Distributor—

-Ignition Coil Resistance_

1. Connect ohmmeter probes across the positive and negative primary winding terminals of the ignition coil, and measure the resistance.

Primary winding resistance at 20°C (68° F): i.o-1.3 n

_Cap and Rotor Head__

1.    Check cap and rotor head for dust, carbon deposits and cracks.

2.    Measure insulation resistance between electrodes on ignition coil and side of spark pług.

Insulation resistance:

Morę than 50    ]

fJoU. 1‘t*' Z . I <f A. ~ ^C

2. Connect ohmmeter probes to secondary winding terminal and primary winding negative terminal, and measure resistance.

Secondary winding resistance at 20°C (68° F): 7,300- 11,000 n

Resistance will vary with coil temperaturę. Replace coil if resistance reading is outside the limits.

SELS56B

• Less than specified value . . . Replace.

-Check Vacuum Advance_

1. Connect vacuum pump to the vacuum con-troller and gradually draw a vacuum while watching breaker piąte movement. Check for smooth operation with no evidence of binding.

2. Turn breaker piąte right and left to check for freedom of movement.