Subaru 1600 Service Manual page 93

ENGINE
Dimensions of crankpin, crank journal and bearing
I
Bearing size
Crank pin outer
diameter
Standard
44.995
45.010mm
(1.7715
1.7720 in)
0.03 mm
(0.0012 in)
-
undersize
0.05 mm
44.945 - 44.960 mm
(0.0020
in)
(1.7695 1.7701 in)
undersize
0.25 mm
44.745 - 44.760 mm
(0.0098
in)
(1.7616 - 1.7622 in)
undersize
4) Measure the thrust clearance of
crankshaft at center bearing. If the
clearance exceeds the limit, replace
bearing.
Crankshaft thrust clearance
Standard
0.010 - 0.095 mm
i
(0.0004 - 0.0037 in)
limit 0.3 mm (O.OllS in)
1 Thickness gauge
2 Center bearing part
Fig. 3-111 Checking thrust cllJaranclJ
5) Inspect individual crankshaft bear-
ings for signs of flaking, seizure,
melting, and wear.
Crank journal outer diameter
I ,SOO cc engine
1,600 cc engine
Front, Center and Rear Front and Rear
Center
54.955 - 54.970 mm
49.957
49.970mm
49.970 - 49.982 mm
(2.1636 - 2.1642 in) (1.9668 1.9673 in) (1.9673 1.9678
in)
54.925
54.940 mm
49.927 - 49.940 mm
49.940 49.952 mm
(2.1624
2.1630 in)
(1.9656 - 1.9661 in)
(1:9661 - 1.9666 in)
54.905 - 54.920 mm 49.907 49.920mm
49.920 - 49.932 mm
(2.1616 - 2.1622
in)
(1.9648 1.9654
in)
(1.9654 - 1.9658
in)
54.705 - 54.720 mm 49.707 - 49.720mm 49.720 49.732 mm
(2.1537 - 2.1543
in)
(1.9570 - 1.9575
in) (1.9575
1.9579
in)
6) Measure the oil clearance on each
crankshaft bearing by means of plasti·
gauge as follows:
a. Wipe off oil, dust, etc. on the sur·
faces to be measured.
b. Install bearings in crankcase and
set crankshaft in position.
c. 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 crank·
case halves and tighten bolts to
the specified torque.
NOTE:
During the work, the crankshaft must
not be turned nor the crankcase
inverted.
Thread size Torque
39 - 47 N'm
lOmm
(4.0
4.S kg-m,
29 35 ft-Ib)
23 26N·m
8mm (2.3 - 2.7 kg-m,
17 - 20 ft-Ib)
4.4 - 5.4 N'm
6mm (0.45 - 0.s5 kg.m,
3.3 - 4.0 ft.lb)
.
..
3-56
d. Remove all bolts and separate
crankcase. Measure the plastigauge
width with the scale printed on the
plastigauge case.
AS·084
Fig. 3-172 MlJasuring oil cllJaranCIJ of
crank journal
If the measurement is not within
the specification, replace defec-
tive bearing with an undersize one,
and replace or recondition crank-
shaft as necessary.