Testing and Inspection for Distributor Cap | California and Canada
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Distributor Cap: Testing and Inspection
Federal
Distributor Cap Test
1.
Using an insulation resistance tester, measure resistance between electrodes on ignition coil terminal and spark plug terminal.
Insulation Resistance:
More than 50 M ohms
2.
If resistance is not within specification, replace distributor cap and rotor.
3.
Measure the length of carbon point.
Carbon Point Length:
More than 0.39 in (10 mm)
4.
If carbon point length is not within specification, replace distributor cap.
