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: Application and ID

HEI distributors with EST can be identified by the following;
- They have no distributor mounted vacuum controls--spark timing is controlled electronically.
- With EST system uses a seven terminal High Energy Ignition (HEI) module