Subaru Legacy 2002 Service Manual page 1094

5. CONNECTING ROD
1) Replace connecting rod, if the large or small
end thrust surface is damaged.
2) Check for bend or twist using a connecting rod
aligner. Replace connecting rod if the bend or twist
exceeds the limit.
Limit of bend or twist per 100 mm (3.94 in) in
length:
0.10 mm (0.0039 in)
(A) Thickness gauge
(B) Connecting rod
3) Install connecting rod fitted with bearing to
crankshaft and measure the side clearance (thrust
clearance). Replace connecting rod if the side
clearance exceeds the specified limit.
Connecting rod side clearance:
Standard
0.070 — 0.330 mm (0.0028 — 0.0130 in)
Limit
0.4 mm (0.016 in)
CYLINDER BLOCK
S143090A1006
B2M1184B
EN0335
ME(H6)-73
4) Inspect connecting rod bearing for scar,
peeling, seizure, melting, wear, etc.
5) Measure the oil clearance on individual con-
necting rod bearings by means of plastigauge. If
any oil clearance is not within specification, replace
the defective bearing with a new one of standard
size or undersize as necessary. (See the table
below.)
Connecting rod oil clearance:
Standard
0.020 — 0.046 mm (0.0008 — 0.0018 in)
Limit
0.050 mm (0.0020 in)
Bearing size
Bearing (Thickness at cen-
ter)
1.490 — 1.502
Standard
(0.0587 — 0.0591)
0.03 (0.0012) 1.510 — 1.513
undersize (0.0594 — 0.0596)
0.05 (0.0020) 1.520 — 1.523
undersize (0.0598 — 0.0600)
0.25 (0.0098) 1.620 — 1.623
undersize (0.0638 — 0.0639)
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.
Mechanical
Unit: mm (in)
Outer diameter of
crank pin
51.984 — 52.000
(2.0466 — 2.0472)
51.954 — 51.970
(2.0454 — 2.0461)
51.934 — 51.950
(2.0446 — 2.0453)
51.734 — 51.750
(2.0368 — 2.0374)