Dodge ram truck 3500 1996 Service Manual page 1140

9 - 150 8.0L ENGINE
BR
REMOVAL AND INSTALLATION (Continued)
INSTALLATION
(1) Lubricate crankshaft main bearings with clean
engine oil.
(2) Install the crankshaft into the cylinder block.
(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) Lubricate the connecting rod bearings and jour­
nals with clean engine oil. Carefully install connect­
ing rods to the crankshaft.
(5) Install the rear seal retainer with a new gasket
and oil seal. Use seal installer 6687 when installing
the oil seal.
(6) Install the timing chain cover with a new gas­
ket and oil seal.
(7) Prime oil pump by squirt oil in the oil filter
mounting hole and filling the J-trap of the front tim­
ing cover. When oil is running out, install oil filter
that has been filled with oil.
(8) 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 in a common plane. Front
face of No.l main cap must not extend forward in
front of face of No.l bulkhead.
(9) Install the oil pickup tube. Tighten the bolts to
16 N-m (144 in. lbs.) torque.
(10) Install the oil pan.
OIL PUMP
REMOVAL
(1) Remove the timing chain cover.
(2) Remove the relief valve plug, gasket, spring
and valve (Fig. 52). Discard the gasket.
(3) Remove oil pump cover (Fig. 53).
(4) Remove pump rotors (Fig. 53).
INSTALLATION
(1) Lubricate the pump rotors using petroleum
jelly or lubriplate and install in the timing chain
cover. Use new parts as required (Fig. 54).
(2) Position the oil pump cover onto the timing
chain cover. Tighten cover bolts to 14 N-m (125 in.
lbs.) torque.
(3) Make sure that inner ring moves freely after
cover is installed.
(4) Install the timing chain cover.
(5) Squirt oil into relief valve hole until oil runs
out.
(6) Install the relief valve and spring.
P L U G T I M I N G
Fig. 52 Oil Pressure Relief Valve
OUTER INNER
ROTOR ROTOR
TIMING CHAIN
COVER J9409-71
Fig. 53 Oil Pump
(7) Using a new pressure relief valve gasket,
install the relief valve plug. Tighten the plug to 20
N-m (15 ft. lbs.) torque.
(8) Install oil filter that has been filled with oil.
CRANKSHAFT REAR S E A L / RETAINER
REMOVAL
(1) Remove the transmission (refer to Group 21,
Transmissions).
(2) Remove the oil pan.
(3) Remove the rear seal retainer. Discard the oil
seal and the gasket (Fig. 55).