Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Ignition Rotor: Testing and Inspection

Ignition Distributor View:





1. Remove the distributor cap retaining screws.
2. Remove the rotor.
3. Measure the resistance across the rotor resistor.
Reading should be 1000 ±300 ohms.
4. Replace as necessary.
5. Carefully inspect the surfaces of the rotor for possible hair line cracks or signs of burning. Also inspect the distributor rotor shaft for signs of arching. Replace as necessary.