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

Distributor Rotor Inspection:




INSPECTION
Replace the rotor if it is cracked or if the spring terminal does not have proper tension.

A black silicone varnish covers the tip of the rotor electrode. The coating is used to suppress electromagnetic radiation. The coating will darken with age and have an ash like appearance. The ash formation is normal and will not affect engine performance.