FixVault

Ignition Timing

With engine at normal operating temperature, disconnect vacuum pipe. Connect timing light and tachometer to vehicle. Run engine at 3000 RPM and check timing. If necessary, adjust timing by loosening distributor lock nut.

IGNITION TIMING (DEGREES BTDC @ RPM)

Application Timing
XJS 25-27 @ 3000
Fig 1: Ignition Timing Mark Location
G46061