D 350 Pickup L6-359 5.9L DSL (1989)
Valve Spring: Service and Repair
INSPECT THE VALVE SPRINGS
Measure the valve spring length.
Valve Spring Dimensional Limits
Approximate Free Length: 55.63mm [2.190 inch]
Maximum Inclination: 1.0mm [0.039 inch]
Measure the valve spring force.
Valve Spring Minimum Load Limit
Minimum Load: 289.32 N [65 lb] is the minimum acceptable load required to compress the spring to a height of 49.25mm [1.94 inch].
