FixVault

Ignition Timing

Adjust timing with hot (slow) idle speed set, engine running at normal operating temperature, distributor vacuum advance line disconnected and plugged, and transmission in Neutral.

Application (1) Timing
"B" Models
  All (Exc. Light Duty Man. Trans.) TDC
  Light Duty Man. Trans. 2.5° BTDC
"D", "W" Models
  All (Exc. Heavy Duty Calif.) TDC
  Heavy Duty Calif. 2.5°ATDC
(1) Tolerance, ±2.5°.