Granada L4-140 2.3L VIN A 2-bbl (1982)
Distributor Vacuum Control: Description and Operation
Vacuum Vent Valves
Fig.31 - Typical Distributor Vent Valve Installation
Fig.32 - Typical Vent Valve Installation
Vacuum vent valves, Figs. 31 and 32, control the induction of fresh air into a vacuum system to prevent chemical decay of vacuum diaphragms
that can occur on contact with fuel vapors. Two types of valves are used. The black color coded valve is a vent valve only, while the natural color
coded valve is a combination vent and delay valve.
NOTE: These valves should be installed with ports pointing downward. The vacuum source should be connected to the cap port, and the system or
device operated by the valve to the body port.