4B-6 - THUNDERBOLT IV AND V IGNITION SYSTEM 90-823225--1 1096
Repair
Precautions
!
WARNING
When performing the following procedure, be
sure to observe the following:
• Be sure that engine compartment is well ven-
tilated and that no gasoline vapors are pres-
ent, to avoid the possibility of fire.
• Be sure to keep hands, feet and clothing clear
of moving parts.
• Do not touch or disconnect any ignition sys-
tem parts while engine is running.
• Do not reverse battery cable connections.
System is negative (–) ground.
• Do not disconnect battery cables while en-
gine is running.
Distributor Cap
1. Loosen four distributor cap retaining screws.
2. Remove distributor cap.
3. Clean cap with warm soap and water and blow off
with compressed air.
4. Check cap contact for excessive burning or cor-
rosion. Check center contact for deterioration.
5. Check cap for cracks or carbon tracks using mag-
neto analyzer.
IMPORTANT: If high tension leads are removed
from cap refer to “Spark Plug Wires” in this sec-
tion and the following illustrations for installa-
tion.
72726
a
a - Alignment Notch
72728
a
a - Vent
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