Subaru Legacy (2005 year). Manual - part 55
ME(H4SO 2.0)-3
MECHANICAL
General Description
Valve seat
Refacing angle
90
°
Contacting width
mm (in)
Intake
Standard
0.8 — 1.4 (0.03 — 0.055)
Exhaust
Standard
1.2 — 1.8 (0.047 — 0.071)
Valve guide
Inside diameter
mm (in)
6.000 — 6.012 (0.2362 — 0.2367)
Protrusion above head
mm (in)
Intake
20.0 — 21.0 (0.787 — 0.827)
Exhaust
16.5 — 17.5 (0.650 — 0.689)
Valve
Head edge thick-
ness
mm (in)
Intake
Standard
0.8 — 1.2 (0.03 — 0.047)
Exhaust
Standard
1.0 — 1.4 (0.039 — 0.055)
Stem outer diameter
mm (in)
Intake
5.950 — 5.965 (0.2343 — 0.2348)
Exhaust
5.945 — 5.960 (0.2341 — 0.2346)
Valve stem gap
mm (in) Standard
Intake
0.035 — 0.062 (0.0014 — 0.0024)
Exhaust
0.040 — 0.067 (0.0016 — 0.0026)
Overall length
mm (in)
Intake
120.6 (4.75)
Exhaust
121.7 (4.79)
Valve spring
Free length
mm (in)
54.30 (2.1378)
Squareness
2.5
°, 2.4 mm (0.094 in)
Tension/spring height
N (kgf, lbf)/mm (in)
Set
214 — 246 (22 — 25, 48 — 55)/45.0 (1.772)
Lift
526 — 582 (54 — 59, 119 — 130)/34.7
(1.366)
Cylinder
block
Surface warpage limit (mating with cylinder head)
mm (in)
0.025 (0.00098)
Grinding limit
mm (in)
0.1 (0.004)
Standard height
mm (in)
201.0 (7.91)
Cylinder inner
diameter
mm (in)
2.0 L
Standard
A
92.005 — 92.015 (3.6222 — 3.6226)
B
91.995 — 92.005 (3.6218 — 3.6222)
2.5 L
Standard
A
99.505 — 99.515 (3.9175 — 3.9179)
B
99.495 — 99.505 (3.9171 — 3.9175)
Cylindricality
mm (in) Standard
0.015 (0.0006)
Out-of-roundness
mm (in) Standard
0.010 (0.0004)
Piston clearance
mm (in) Standard
−0.010 — 0.010 (−0.00039 — 0.00039)
Piston
Outer diameter
mm (in)
2.0 L
Standard
A
92.005 — 92.015 (3.6222 — 3.6226)
B
91.995 — 92.005 (3.6219 — 3.6222)
0.25 (0.0098) OS
92.245 — 92.265 (3.6317 — 3.6325)
0.50 (0.0197) OS
92.495 — 92.515 (3.6415 — 3.6423)
2.5 L
Standard
A
99.505 — 99.515 (3.9175 — 3.9179)
B
99.495 — 99.505 (3.9171 — 3.9175)
0.25 (0.0098) OS
99.745 — 99.765 (3.9270 — 3.9278)
0.50 (0.0197) OS
99.995 — 100.015 (3.9368 — 3.9376)
Piston pin specified diameter
mm (in)
23.000 — 23.006 (0.9055 — 0.9057)
Piston pin
Outer diameter
mm (in)
22.994 — 23.000 (0.9053 — 0.9055)
Standard clearance between piston and piston pin
mm (in)
0.004 — 0.008 (0.0002 — 0.0003)
Degree of fit
Piston pin must be fitted into position with
thumb at 20
°C (68°F).
Piston ring
Ring closed gap
mm (in)
Top ring
Standard
0.20 — 0.35 (0.0079 — 0.0138)
Second
ring
2.0 L
Standard
0.40 — 0.50 (0.0157 — 0.0197)
2.5 L
Standard
0.37 — 0.52 (0.0146 — 0.0205)
Oil ring
Standard
0.20 — 0.50 (0.0079 — 0.0197)
Ring groove gap
mm (in)
Top ring
Standard
0.040 — 0.080 (0.0016 — 0.0031)
Second ring
Standard
0.030 — 0.070 (0.0012 — 0.0028)
Connecting
rod
Bend or twist per 100 mm (3.94 in) in
length
mm (in) Limit
0.10 (0.0039)
Thrust clearance
mm (in) Standard
0.070 — 0.330 (0.0028 — 0.0130)