Dodge ram truck 3500 1996 Service Manual page 1054

9 - 84 5.2L ENGINE
S E R V I C E
PROCEDURES
(Continued)
UPPER
LOWER
J9309-83
• Fig. 13 Main Bearing identification
CRANKSHAFT .
A crankshaft which has undersize journals will be
stamped with 1/4 inch letters on the milled flat on
the No.8 crankshaft counterweight (Fig. 14).
FOE EXAMPLE: R2 stamped on the No.8 crank­
shaft counterweight indicates that the No.2 rod jour­
nal is 0.025 mm (0.001 in) undersize. M4 indicates
that the No.4 main journal is 0.025 mm (0.001 in)
undersize. R3 M2 indicates that the No.3 rod journal
and the No.2 main journal are 0.025 mm (0.001 in)
undersize.
Undersize Journal
Identification Stamp
0.025 m m (0.001 in.) (Rod)
R1-R2-R3 or R4
0.025 mm (0.001
in.) (Main)
M1-M2-M3-M4 or M5
#8 CRANKSHAFT
COUNTERWEIGHT ^ ^ E R S ' " '
R-l -2-<—(ROD)
M-l •<—(MAIN)
n
--
- J 9 2 0 9 - 1 3 c
Fig. 14 Location of Crankshaft identification
When a crankshaft is replaced, all main and con­
necting ' rod bearings should be replaced with new
bearings. Therefore, selective fitting of the bearings
is not required when a crankshaft and bearings are
replaced.
R E M @ i a i i m m I N S T A L L A T I O N
ENGINE F R 0 I T MOUNTS
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Position fan to assure clearance for radiator top
tank and hose.
CAUTION;
manifold.
D O NOT lift the engine by the intake
(3) Install engine support/lifting fixture.
(4) Raise vehicle on hoist.
(5) Lift the engine SLIGHTLY and remove the
thru-bolt and nut (Fig. 15).
(6) Remove engine support bracket/cushion bolts
(Fig. 15). Remove the support bracket/cushion and
heat shields.
ENGINE MOUNT
HEAT SHIELD
ENGINE SUPPORT
BRACKET/CUSHION
THRU-BOLT
RESTRICTION PADS
J9409-144
Fig. 15 Engine Front Mounts
INSTALLATION
(1) With engine raised SLIGHTLY, position the
engine support bracket/cushion and heat shields to
the block. Install new bolts and tighten to 81 N-m (60
ft. lbs.) torque.
(2) Install the thru-bolt into the engine support
bracket/cushion.
(3) Lower engine with support/lifting fixture while
guiding the engine bracket/cushion and thru-bolt into
support cushion brackets (Fig. 16).
(4) Install thru-bolt nuts and tighten the nuts to
68 N-m (50 ft. lbs.) torque.
(5) Lower the vehicle.
(6) Remove lifting fixture.
ENGINE REM! MOUNT
REMOVAL
(1) Raise the vehicle on a hoist.
(2) Position a transmission jack in place.