Dodge ram truck 3500 1996 Service Manual page 1148

9 - 158 8.0L ENGINE — B R
SPECIFICATIONS (Continued)
Valve Springs
Free Length (Approx.) 49.962 mm
(1.967 in)
Spring Tension
Valve Closed .369 - 405 N ©41.66 mm
(81 - 8 9 lbs @1.640 in)
Valve Open .865 - 956 N @30.89 mm
(190 - 210 lbs ®1.216 in)
Number of Coils 6.79
Wire Diameter 4.496 mm
(0.177 in)
Valve Timing
Exhaust Valve
Closes (ATC) ...25°
Opens (BBC) ...60°
Duration ...265°
Intake Valve
Closes (ABC) .61°
Opens (BTC) ....6°
Duration 246°
Valve Overlap .....31 °
J9509-142
ENGINE SPECIFICATIONS—CONT.
CONDITION
IDENTIFICATION
LOCATION OF IDENTIFICATION
CRANKSHAFT JOURNALS
(UNDERSIZE)
0.0254 mm (0.001 in.)
R o r M
M-2-3 etc. (indicating no. 2 and 3 main bearing
journal)
and/or
R-1 -4 etc. (indicating no. 1 and 4 connecting rod
journal)
Milled flat on no. 8 crankshaft counterweight
CYLINDER BORES
(OVERSIZE)
0.508 mm (0.020 in.)
A
Following engine serial number.
HYDRAULIC TAPPETS
(OVERSIZE)
0.2032 mm (0.008 in.)
Diamond-shaped stamp top pad - front of
engine and flat ground on outside surface of
each O/S tappet bore.
VALVE STEMS (OVERSIZE)
0.127 mm (0.005 in.)
X Milled pad adjacent to two tapped holes
(3/8 in.) on each end of cylinder head.
J9209-142
ENGINE SPECIFICATIONS—CONT.