Subaru Legacy 2004 Service Manual page 230

Refacing angle
Valve seat
Contacting width
Inside diameter
Valve guide
Protrusion above head
Head edge thick-
ness
Stem outer diameters
Valve
Valve stem gap
Overall length
Free length
Squareness
Valve
springs
Tension/spring
height
Surface warpage limit (mating with cylinder
head)
Grinding limit
Standard height
Cylinder inner
Cylinder
diameter mm (in)
block
Taper
Out-of-roundness
Piston clearance
Boring limit
Outer diameter
mm (in)
Piston
Piston pin standard diameter
Outer diameter
Standard clearance between piston and piston
Piston pin pin
Degree of fit
Ring closed gap
Piston Ring
Ring groove gap
General Description
Intake
mm (in)
Exhaust
mm (in)
Intake
mm (in)
Exhaust
mm (in)
mm (in) Standard
mm (in)
N (kgf, lb)/mm (in)
2.0 L Standard
2.5 L Standard
mm (in) Standard
mm (in) Standard
mm (in) Standard
Standard
2.0 L
0.25 (0.0098) OS
0.50 (0.0197) OS
Standard
2.5 L
0.25 (0.0098) OS
0.50 (0.0197) OS
Top ring
2.0 L Standard
Second
mm (in)
ring
2.5 L Standard
Oil ring
Top ring
mm (in)
Second ring
ME(H4SO 2.0)-3
Standard
Standard 1.2 — 1.8 (0.047 — 0.071)
mm (in) 6.000 — 6.012 (0.2362 — 0.2367)
Intake 20.0 — 21.0 (0.787 — 0.827)
Exhaust 16.5 — 17.5 (0.650 — 0.689)
Standard
Standard 1.0 — 1.4 (0.039 — 0.055)
Intake 5.950 — 5.965 (0.2343 — 0.2348)
Exhaust 5.945 — 5.960 (0.2341 — 0.2346)
Intake 0.035 — 0.062 (0.0014 — 0.0024)
Exhaust 0.040 — 0.067 (0.0016 — 0.0026)
Intake
Exhaust
mm (in)
Set 214 — 246 (22 — 25, 48 — 55)/ 45.0 (1.772)
Lift 526 — 582 (54 — 59, 119 — 130)/ 34.7 (1.366)
mm (in)
mm (in)
mm (in)
A 92.005 — 92.015 (3.6222 — 3.6226)
B 91.995 — 92.005 (3.6218 — 3.6222)
A 99.505 — 99.515 (3.9175 — 3.9179)
B 99.495 — 99.505 (3.9171 — 3.9175)
%0.010 — 0.010 (%0.00039 — 0.00039)
mm (in)
A 92.005 — 92.015 (3.6222 — 3.6226)
B 91.995 — 92.005 (3.6219 — 3.6222)
92.245 — 92.265 (3.6317 — 3.6325)
92.495 — 92.515 (3.6415 — 3.6423)
A 99.505 — 99.515 (3.9175 — 3.9179)
B 99.495 — 99.505 (3.9171 — 3.9175)
99.745 — 99.765 (3.9270 — 3.9278)
99.995 — 100.015 (3.9368 — 3.9376)
mm (in) 23.000 — 23.006 (0.9055 — 0.9057)
mm (in) 22.994 — 23.000 (0.9053 — 0.9055)
mm (in) 0.004 — 0.008 (0.0002 — 0.0003)
Piston pin must be fitted into position with thumb
Standard 0.20 — 0.35 (0.0079 — 0.0138)
0.40 — 0.50 (0.0157 — 0.0197)
0.35 — 0.50 (0.0138 — 0.0197)
Standard 0.20 — 0.50 (0.0079 — 0.0197)
Standard 0.040 — 0.080 (0.0016 — 0.0031)
Standard 0.030 — 0.070 (0.0012 — 0.0028)
MECHANICAL
90"
0.8 — 1.4 (0.03 — 0.055)
0.8 — 1.2 (0.03 — 0.047)
120.6 (4.75)
121.7 (4.79)
54.30 (2.1378)
2.5", 2.4 mm (0.094 in)
0.025 (0.00098)
0.1 (0.004)
201.0 (7.91)
0.015 (0.0006)
0.010 (0.0004)
0.5 (0.020)
at 20"C (68"F).