Subaru XT 1988 Service Manual page 202

2-3
ENGINE
(3) Cut the plastigauge to the bearing width and place it
on journal parallel with the crankshaft axis. Be careful not
to put it on the oil hole or groove. Bring together the
crankcase halves and tighten bolts to the specified torque.
During the work, the crankshaft must not be turned nor the
crankcase inverted.
Torque:
39 - 47 N·m (4.0 - 4.8 kg-m, 29 - 35 ft-Ib)
(4) Remove all bolts and separate crankcase. Measure the
plastigauge width with the scale printed on the plastigauge
case.
L2-172
Fig. 105
(5)
If the measurement is not within the specification,
replace defective bearing with an undersize one, and
replace or recondition crankshaft as necessary.
Crankshaft oil clearance
Center
0.008 - 0.027 mm
(0.0003 - 0.0011 in)
Standard
Front
&
Rear
0.003 - 0.036 mm
(0.0001 - 0.0014 in)
Center
0.045 mm (0.0018 in)
Limit
Front
&
Rear
0.055 mm (0.0022 in)
46
Dimensions of bearing
Crankshaft
Th ickness of bearing at center
bearing size
Front & Rear Center
Standard
2.015 - 2.019 mm 2.019 - 2.022 mm
(0.0793 - 0.0795 in)
(0.0795 - 0.0796 in)
0.03 mm
2.030 - 2.034 mm 2.034 - 2.037 mm
(0.0012 in)
(0.0799 - 0.0801 in) (0.0801 - 0.0802 in)
undersize
0.05 mm
2.040 - 2.044 mm 2.044 - 2.047 mm
(0.0020 in)
(0.0803 - 0.0805 in)
(0.0805 - 0.0806 in)
undersize
0.25 mm
2.140 - 2.144 mm 2.144 - 2. 147m
m
(0.0098 in)
(0.0843 - 0.0844 in) (0.0844 - 0.0845 in)
undersize
ASSEMBLY
CRANKSHAFT
1) Install connecting rod bearings on connecting rods and
connecting rod caps.
Apply oil to the surfaces of the connecting rod bearings.
2) Install connecting rods and connecting rod caps on crank-
shaft with connecting rod bolts and nuts.
Torque (Connecting rod nut):
39 - 42 N'm (4.0 - 4.3 kg-m, 29 - 31 ft-Ib)
with oil on threads
a. Position each connecting rod with the side marked
f)
facing forward.
b. Each connecting rod has its own mating cap. Make sure
that they are assembled correctly by checking their matching
number.
c. When tightening the connecting rod nuts, apply oil on the
threads.