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

Leading

Fig. 14 Leading Diaphragm.:

NOTE: A/T vehicles should be in gear.
1. Pull off vacuum hose at leading vacuum advance diapraghm Fig. 14.
2. There should be no vacuum at idle.
3. Raise engine speed.
4. Above 1100 rpm, vacuum should be present.

Fig. 3 Vacuum routing.:

5. If no vacuum, check for 12 volts at leading vacuum control solenoid (above 1100 rpm) Fig. 3.
6. If 12 volts is present and there is vacuum to the solenoid valve, replace the solenoid valve.