Dodge RAM TRUCK 1500 1995 Service Manual page 923

B R — 5.2L ENGINE 9 - 79
ENGINE SPECIFICATIONS—CONT*
Valve Springs
Free Length (Approx.) 49.962 mm
(1.967 in)
Spring Tension . @ 41.66 mm s 378 N
(Valve Closed) ( ® L 6 4 in - 85 lbs)
Spring Tension . . . . . . . . . . . . . . . . @ 30.89 mm = 890 N
(Valve Open) f@ 1.212 in = 200 lbs)
Number of Coils . . . . . . . . . . . . . . . 6.8
Installed H e i g h t . . . . . . . . . . . . . . . . 41.66 mm
(Spring Seat to Retainer) (1.64 in)
Wire Diameter 4.50 mm
(0.177 in)
Valve timing
Exhaust Valve
Closes (ATC) 21°
Optus (BBC) . . . . . 60°
Duration 264°
Intake Valve
Closes (ABC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61°
Opens (BTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 °
Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250°
Valve Overlap 31 °
J9409-99
OVERSIZE AND UNDERSIZE ENGINE COMPONENT MARKINGS
C O N D I T I O N I D E N T I F I C A T I O N
L O C A T I O N OF IDENTIFICATION
CRANKSHAFT JOURNALS
(UNDERSIZE)
0.0254 mm (0.001 in.)
R or M
M-2-3 etc. (indicating no. 2 and 3 main bearing
journal)
and/or
R-l -4 etc. (indicating no. 1 and 4 connecting rod
journal)
Milled flat on no. 8 crankshaft counterweight
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. j
J9309-82