Subaru XT 1988 Service Manual page 255

ENGINE 2-3
Connecting rod bearing
Bearing size
Thickness at center
of bearing
Standard
1.485 - 1 .490
mm
(0.0585 - 0.0587
in)
0.03
mm
(0.0012
in) undersize
1.500 - 1.505
mm
(0.0591 - 0.0593
in)
0~05
mm
(0.0020
in) undersize
1.510 -1.515
mm
(0.0594 - 0.0596
in)
0.25
mm
(0.0098
in) undersize
1.610 - 1.615
mm
(0.0634 - 0.0636
in)
6)
Inspect bushing at connecting rod small end, and replace
if worn or damaged. Also measure the piston pin clearance at
the connecting rod small end.
Standard clearance between piston pin and bushing in
connecting rod:
o -
0.022
mm
(0 - 0.0009
in)
CRANKSHAFT AND CRANKSHAFT BEARING
1) Clean crankshaft completely and check for cracks by
means of red check etc., and replace if defective.
2) Measure the crankshaft bend, and correct or replace if it
exceeds the limit.
When measuring, place both the front and rear journals on
blocks located on a surface plate, and apply a dial gauge to the
center journal.
Crankshaft bend limit:
0.035
mm
(0.0014
in)
Fig. 242
L2-1390
99
3) Inspect the crank journal and crankpin for wear. If not to
specifications, replace bearing with an undersize one, and
replace or recondition crankshaft as necessary. When grinding
crank journal or crankpin, finish them to the specified dImen-
sions according to the undersize bearing to be used.
Crankpin and crank journal:
Fig. 243
Out-of-roundness
0.03
mm
(0.0012
in) or less
Grinding limit
0.25
mm
(0.0098
in)
L2-1391
4) Measure the thrust clearance of crankshaft at center
bearing. If the clearance exceeds the limit, replace bearing.
Crankshaft thrust clearance
Standard
Fig. 244
0.010 - 0.095 mm (0.0004 - 0.0037 in)
limit
0.3 mm (0.0118
in)