Spirit L6-258 4.2L VIN C 2-bbl (1982)
Vacuum Spark Delay Valve: Testing and Inspection
Forward Delay Valve, Reverse Delay Valve & Two Way Delay
Fig 51 Reverse Delay Valve Test Chart, 1980-81
Fig 52 Reverse Delay Valve (except 4 Port) Test Chart, 1982
Fig 53 Reverse Delay Valve (4 Port) Test Chart, 1982
Fig 54 Forward Delay Valve Test Chart, 1980-81
Fig 55 Forward Delay Valve Test Chart, 1982