| Condition |
Possible Cause |
Correction |
ENGINE WILL NOT START
(Fuel and carburetion known to be OK) |
a) Dual Ballast |
Check resistance of each section:
Compensating resistance: .50-.60 ohms @ 70,- 8O deg F
Auxiliary Ballast: 4.75-5.75 ohms
Replace if faulty. Check wire positions. |
| b) Faulty Ignition Coil |
Check for carbonized tower. Check primary and secondary resistances:
Primary: 1.41-1.79 ohms @ 7O-80 deg F
Secondary: 9,200-11,700 ohms @ 7O-80 deg F
Check in coil tester. |
| c) Faulty Pickup or |
Check pickup coil resistance: 400-600 ohms |
| Improper Pickup Air Gap |
Check pickup gap: .010 in. feeler gauge should not slip between pickup coil core and an aligned reluctor blade.
No evidence of pickup core striking reluctor blades should be visible. To reset gap, tighten pickup adjustment
screw with a .008 in. feeler gauge held between pickup core and an aligned reluctor blade. After resetting gap,
run distributor on test stand and apply vacuum advance, making sure that the pickup core does not strike the
reluctor blades. |
| d) Faulty Wiring |
Visually inspect wiring for brittle insulation. Inspect connectors. Molded connectors should be inspected for
rubber inside female terminals. |
| e) Faulty Control Unit |
Replace if all of the above checks are negative. When ever the control unit or dual ballast is replaced make
sure the dual ballast wires are correctly inserted in the keyed molded connector. |
ENGINE SURGES SEVERELY
(Not Lean Carburetor) |
a) Wiring |
Inspect for loose connection and/or broken conductors in harness. |
| b) Faulty Pickup Leads |
Disconnect vacuum advance. If surging stops, replace pickup. |
| c) Ignition Coil |
Check for intermittent primary. |
| System Test |
Pickup Coil Replacement |