Dodge RAM 1500 1998 Owner's Manual page 1481

9 - 258 ENGINE 5.9L DIESEL
INTAKE/EXHAUST VALVES & SEATS (Continued)
Fig. 27 Measure Valve Guide Bore
Measure valve margin (rim thickness) (Fig. 28).
Fig. 28 Measure Valve Margin (Rim Thickness)
VALVE MARGIN (RIM THICKNESS)
0.79 mm (0.031 in.) MIN.
Measure the valve spring free length and maxi-
mum inclination (Fig. 29).
Test valve spring force with tool C-647 (Fig. 30).
Specification 72.0 — 80.7 lbs. when compressed to
35.33 mm (1.39 in.).
Fig. 29 Measure Valve Spring Free Length and Max.
Inclination
APPROXIMATE VALVE SPRING FREE LENGTH
47.75 mm (1.88 in.)
MAX INCLINATION
1.5 mm (.059 in.)
Fig. 30 Testing Valve Spring with Tool C-647
1 - SPECIAL TOOL C-647
DR