RAM 3500 Truck 4WD L6-5.9L DSL Turbo VIN 6 (1998)
Valve Spring: Service and Repair
Inspection
Measure the valve spring length. The approximate free length is 60 mm (2.36 inch) with the maximum inclination of 1.0 mm (0.039 inch).
Measure the valve spring force. 359 N (81 lbs.) is the minimum acceptable load required to compress the spring to a height of 49.25 mm (1.94 inch).
If the valve spring does not meet the limits above, replace the spring.
