LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Plymouth >> 1971 >> Cricket Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> ROOTES Group Single Carburetor Engine Modification >> Operation >> Control Valve
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Control Valve

Control valve opens when intake manifold vacuum exceeds 21" Hg (1970-71) or 20" Hg (1972-73). When open, it allows intake manifold vacuum to operate throttle bypass valve and distributor ignition retard control.