XJ-S V12-5.3L (1982)
Distributor Vacuum Control: Description and Operation
Vacuum Regulator
Vacuum Hose Routing
A vacuum regulator is incorporated to give a better idle condition. The vacuum regulator is located between solenoid vacuum valve and vacuum
advance unit. The lower port of vacuum regulator, marked CARB, is sourced to throttle butterfly. During idle conditions, the vacuum regulator limits
vacuum signal available for vacuum advance unit to 11.0 in ± 1 in Hg (9.372 ± .033 bar)
