Courier L4-2299cc Courier (1982)
Spark Control Relay: Testing and Inspection
Spark Delay Valve
Spark Delay Valve, 1977-80, 1980-82 exc. Calif.
1. Remove air cleaner and disconnect vacuum line from distributor.
Fig. 38 - Spark Delay Valve Test
2. On 1977-78, disconnect vacuum control line at intake manifold fitting and install distributor vacuum line to intake manifold fitting, Fig. 38.
Fig. 39 - Spark Delay Valve Test
Fig. 40 - Spark Delay Valve Test
3. On 1979-82, disconnect air bypass line on California models, Figs. 39 and 40, or air anti-afterburn valve on except California models and connect
distributor vacuum line disconnected previously to intake manifold fitting.
