Specifications

(8) Slide special tool VM.1004 over the crankshaft
gear and, insert the crankshaft and support assembly
into the crankcase in the same manner used for
removal.
(9) Align the holes in the lower supports, with the
center of the crankcase webs (Fig. 112).
(10) Secure each support assembly to the crank-
case with the main bearing oil feed and support loca-
tors. Torque to 54 N·m (40 ft. lbs).
(11) Install the rear main bearing support onto
crankshaft ensuring arrow on bearing support aligns
with vertical web in center of crankcase.
(12) Install the rear oil seal.
(13) Install the new O-rings in adaptor plate.
(14) Install the adaptor plate to block. Torque nuts
to 28 N·m (20 ft. lbs.).
(15) Install the Allen bolts through adaptor plate
to rear main bearing support. Torque to 11 N·m (97
in. lbs.).
(16) Position the flexplate adapter hub and O-ring
on crankshaft and align bolt holes.
NOTE: For purposes of checking crankshaft end
play, used adapter hub bolts may be used. Final
assembly requires new adapter hub bolts.
(17) Install 2 adapter hub bolts, 180° apart, and
tighten bolts to 20 N·m plus 60° (15 ft. lbs.) plus 60°.
(18) Attach dial indicator to engine block.
(19) Move crankshaft toward front of engine and
zero indicator.
(20) Move crankshaft toward the rear of engine
and record measurement.
(21) Subtract specified crankshaft end play from
figure obtained. Crankshaft end play 0.08 to 0.28 mm
(.0060 to .0119 in.).
(22) Select thrust washers which will give correct
end play.
(23) Remove tools and adapter hub.
(24) Lubricate thrust washer halves and fit them
into the rear main bearing carrier.
(25) Ensure that crankshaft end and adapter hub
mating surfaces are clean and dry. Install 88O’’ ring
in adapter hub groove.
(26) To verify correct end play, install 2 adapter
hub bolts 180° apart, and tighten bolts to 20 N·m
plus 60° (15 ft. lbs. plus 60°).
(27) Measure crankshaft end play with a dial
gauge. Crankshaft end play should not exceed 0.08 to
0.28 mm (.0060 to .0119 in.) (Fig. 113).
CAUTION: Use NEW adapter hub bolts for the fol-
lowing procedure.
(28) Install a new O-ring on adapter hub. Install
adapter hub on crankshaft. The 6 adapter hub bolts
must be tightened as follows:
a. Lubricate and install the 6 new adapter hub
bolts.
b. Torque the 6 adapter hub bolts to 50 N·m (36 ft.
lbs.) starting one bolt and following with the opposite
one (cross tightening) until completion, in a clockwise
direction..
c. Loosen one bolt at a time and tighten to 20 N·m
(14 ft. lbs.) plus 75° using the cross tightening
method.
(29) Install the pistons and connecting rod assem-
blies. Refer to piston and connecting rods removal
and installation in this section.
(30) Install the oil pick up tube. Torque bolts to 25
N·m (18 ft. lbs.).
Fig. 112 Main Bearing Support Alignment
Fig. 113 Measuring Crankshaft End Play
WJ ENGINE 9 - 53
REMOVAL AND INSTALLATION (Continued)