FixVault
Home
›
Jaguar
›
1988
›
XJ-SC
›
Repair and Diagnosis
›
Engine Performance
›
Theory and Operation
›
Theory/Operation
›
Theory & Operation
›
Ignition Timing Control System
›
XJS
Ignition Timing Control System: XJS
Ignition timing is controlled by a traditional vacuum advance unit and mechanical advance weights.