Subaru Legacy 2002 Service Manual page 293

Mechanical
Surface warpage limit (mating with cylinder head)
Surface grinding limit
Cylinder bore
Cylinder
block
Taper
Out-of-roundness
Piston clearance
Enlarging (boring) limit
Outer diameter
Piston
Standard inner diameter of piston pin hole
Outer diameter
Standard clearance between piston pin and hole in pis-
Piston pin ton
Degree of fit
Piston ring gap
Piston ring
Clearance
between piston
ring and piston
ring groove
Bend twist per 100 mm (3.94
in) in length
Connecting
rod
Side clearance
GENERAL DESCRIPTION
A
2000 cc STD
B
A
2500 cc STD
B
STD
Limit
STD
Limit
STD
Limit
A
STD
B
0.25 mm (0.0098 in)
2000 cc
OS
0.50 mm (0.0197 in)
OS
A
STD
B
0.25 mm (0.0098 in)
2500 cc
OS
0.50 mm (0.0197 in)
OS
STD
Top ring
Limit
STD
Second
ring
Limit
STD
Oil ring
Limit
STD
Top ring
Limit
STD
Second
ring
Limit
Limit
STD
Limit
ME-4
0.05 mm (0.0020 in)
0.1 mm (0.004 in)
92.005 — 92.015 mm (3.6222 — 3.6226 in)
91.995 — 92.005 mm (3.6218 — 3.6222 in)
99.505 — 99.515 mm (3.9175 — 3.9179 in)
99.495 — 99.505 mm (3.9171 — 3.9175 in)
0.015 mm (0.0006 in)
0.050 mm (0.0020 in)
0.010 mm (0.0004 in)
0.050 mm (0.0020 in)
0.010 — 0.030 mm (0.0004 — 0.0012 in)
0.050 mm (0.0020 in)
0.5 mm (0.020 in)
91.985 — 91.995 mm (3.6214 — 3.6218 in)
91.975 — 91.985 mm (3.6211 — 3.6214 in)
92.225 — 92.235 mm (3.6309 — 3.6313 in)
92.475 — 92.485 mm (3.6407 — 3.6411 in)
99.485 — 99.495 mm (3.9167 — 3.9171 in)
99.475 — 99.485 mm (3.9163 — 3.9167 in)
99.725 — 99.735 mm (3.9262 — 3.9266 in)
99.975 — 99.985 mm (3.9360 — 3.9364 in)
23.000 — 23.006 mm (0.9055 — 0.9057 in)
22.994 — 23.000 mm (0.9053 — 0.9055 in)
0.004 — 0.008 mm (0.0002 — 0.0003 in)
Piston pin must be fitted into position with thumb at
20°C (68°F).
0.20 — 0.35 mm (0.0079 — 0.0138 in)
1.0 mm (0.039 in)
0.35 — 0.50 mm (0.0138 — 0.0197 in)
1.0 mm (0.039 in)
0.20 — 0.50 mm (0.0079 — 0.0197 in)
1.5 mm (0.059 in)
0.040 — 0.080 mm (0.0016 — 0.0031 in)
0.15 mm (0.0059 in)
0.030 — 0.070 mm (0.0012 — 0.0028 in)
0.15 mm (0.0059 in)
0.10 mm (0.0039 in)
0.070 — 0.330 mm (0.0028 — 0.0130 in)
0.4 mm (0.016 in)