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Spark Plug Wire <--> [Ignition Cable] >
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G 20 3/4 Ton Van L6-250 4.1L VIN D 2-bbl (1984)
Engine, Cooling and Exhaust
Engine
Tune-up and Engine Performance Checks
Ignition Timing
Timing Marks and Indicators
System Information
Locations
Page 1
TIMING MARK 4.1L (250), 4.8L (292)
Engine, Cooling and Exhaust
Engine
Tune-up and Engine Performance Checks
Ignition Timing
Timing Marks and Indicators
System Information
Locations
Spark Plug Wire <--> [Ignition Cable] >
< Number 1 Cylinder Location