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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Distributor Cap: Testing and Inspection

Fig. 1 Spark Plug Cable Routing:






Remove the distributor cap and inspect the inside for:
- flash over
- cracking of carbon button
- lack of spring tension on carbon button
- cracking of cap
- burned, worn terminals
- Also check for broken distributor cap towers.

If any of these conditions are present the distributor cap and/or cables should be replaced.