Dodge ram truck 3500 1996 Service Manual page 1139

8.0L ENGINE
I - 1 4 S
R E M O V A L AM® I N S T A L L A T I O N ( C o n t i n u e d )
(12) Install the cylinder head, push rods, rocker
arms and valve cover.
(18) Install lower intake manifold.
(14) Install the engine into the vehicle.(refer to
Engine Installation of this manual).
CRANKSHAFT
IAIN
BEARINGS
REMOVAL
(1) Remove the oil pan and oil pump pick-up tube.
(2) Identify bearing caps before removal. Remove
bearing caps one at a time.
(3) Remove upper half of bearing by inserting
Crankshaft Main Bearing Remover/Installer Tool
C-3059 Into the oil hole of crankshaft (Fig. 50).
(4) Slowly rotate crankshaft clockwise, forcing out
upper half of bearing shell.
Fig. 50 Upper Main Bearing Removal and
Installation with Tool C-3059
INSTALLATION
Only one main bearing should be selectively fitted
while all other main bearing caps are properly tight­
ened. A l l bearing capbolts removed during service
procedures are to be cleaned and oiled before Instal­
lation.
When installing a new upper bearing shell, slightly
chamfer the sharp edges from the plain side.
(1) Start bearing in place, and insert Crankshaft
Main Bearing Remover/Installer Tool C-3059 into oil
hole of crankshaft (Fig. 50).
(2) Slowly rotate crankshaft counterclockwise slid­
ing the bearing into position. Remove Tool C-3059.
(3) Lubricate the main journals with clean engine
oil. Install main bearing caps and bolts. Follow the 2
step tightening sequence.
•• Step 1—Starting with bearing cap No.l, tighten
the bolts to 27 N-m (20 ft. lbs.) torque.
• Step 2—Starting with bearing cap No.l, tighten
the bolts to 115 N-m (85 ft. lbs.) torque.
(4) Apply a rearward axial load of 667 N (150
Ibs-f) on crankshaft centerline, driving No.3 main cap
and thrust bearing against No.3 bulkhead. Repeat
procedure, driving crankshaft forward to align rear
flange of thrust bearings i n a common plane. Front
face of No.l main cap must not extend forward i n
front of face of No.l bulkhead.
(5) Install the oil pump pick-up tube and oil pan.
CRANKSHAFT
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.
REMOVAL
(1) Remove the oil pan.
(2) Remove the oil pickup tube.
(8) Remove the timing chain cover and gasket.
Remove and discard the front crankshaft oil seal and
cover gasket.
(4) Remove Transmission (refer to Group 21,
Transmission).
(5) Remove the rear seal retainer. Remove and dis­
card the crankshaft rear oil seal and retainer gasket.
(6) Identify main bearing caps before removal (Fig.
51). Remove bearing caps and bearings one at a time.
Fig. 51 Main Bearing Identification
(7) Remove the connecting rod bearing caps.
(8) Lift the crankshaft straight out of the block.