Subaru SVX 1992 Manual page 204

ENGINE
[W5C61 2-3
4) Inspect connecting rod bearing for scar, peeling,
seizure, melting, wear, etc .
5) Measure the oil clearance on individual connecting
rod bearings by means of plastigauge . If any oil clear-
ance is not within specification, replace the defective
bearing with a new one of standard size or undersize as
necessary, necessary . (See the table below.)
Connecting rod oil clearance :
Standard
0 .020 - 0 .046 mm (0.0008 - 0 .0018 in)
Limit
0 .05 mm (0.0020 in)
Unit: mm (in)
Bearing
Bearing size (Thick-
Outer diameter of
ness at center) cran k pin
Standard
1 .486 - 1 .498 51 .984 - 52 .000
(0 .0585 - 0 .0590) (2.0466 - 2 .0472)
0.03 undersize
1 .520 - 1 .524 51 .954 - 51 .970
(0 .0598 - 0 .0600) (2.0454 - 2 .0461)
0.05 undersize
1 .540 - 1 .544 51 .934 - 51 .950
(0 .0606 - 0 .0608) (2.0446 - 2 .0453)
0 .25 Undersize
1 .740 - 1 .744 51 .734 - 51 .750
(0 .0685 - 0 .0687) (2 .0368 - 2 .0374)
6) Inspect the bushing at connecting rod small end for
wear or damage .
Also measure the piston pin clearance at the connecting
rod small end .
If not within specifications, replace connecting rod and
connecting rod cap as a set.
Clearance between piston pin and bushing :
Standard
0 - 0.018 mm (0 - 0.0007 in)
Limit
0 .030 mm (0 .0012 in)
6. 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.
If a suitable V-block is not available, install #1 and #5
crankshaft bearing on cylinder block, position crank-
shaft on these bearings and measure crankshaft bend
using a dial gauge.
Crankshaft bend limit :
0 .035 mm (0 .0014 in)
Fig. 125
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 dimensions according to the undersize
bearing to be used .
Crankpin and crank journal :
Out-of-roundness
0 .03 mm (0.0012 in) or less
Taper limit
0 .07 mm (0.0028 in)
Grinding limit
0 .25 mm (0.0098 in)
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