Table of contents: Checking the high voltage wire ↓ Replacing the high voltage wire ↓
Checking the high voltage wire
Check if the wires are tightly seated in the distributor cap. They can be pushed out when air is directed and cause the engine to run unsteadily.
The bronze terminals must not oxidize and must ensure good contact with the spark plug plugs.
When the spark jumps to ground in front of the spark plug, a clicking or cracking sound will be heard in the engine compartment.
Then you need to see if sparks are actually jumping. The reason may be salt crystals on the wire or the wire is frayed somewhere.
A wire with frayed or dirty areas must be replaced.
If there is interference from the ignition operation, measure the interference suppression plug on the ignition coil and on the distributor to ensure that it corresponds to the correct resistance value.
The ohmmeter should show 0.6-1.4 kOhm.
Measure the spark plug plug resistance. The nominal value is 4-6 Ohms.
Replacing the high voltage wire
At the ends of the wire directed to the distributor, bronze terminals must be screwed into the copper conductors.
The interference suppressor plug and the spark plug plug must be screwed in to the same degree.