Subaru Legacy 2004 Service Manual page 1112

Head edge thickness
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
Cylinder inner diameter
Cylinder
block
Taper
Out-of-roundness
Piston clearance
Boring limit
Piston Outer diameter
Standard clearance between piston and piston pin
Piston pin
Degree of fit
Ring closed gap
Piston ring
Ring groove gap
Bend or twist per 100 mm (3.94 in) in length
Connecting
rod
Side clearance of large end
Oil clearance
Bearing of
Bearing size
large end
(Thickness at center)
Bushing of Clearance between piston pin and bushing
small end
General Description
Intake Standard
mm (in)
Exhaust Standard
Intake
mm (in)
Exhaust
Intake
mm (in) Standard
Exhaust
Intake
mm (in)
Exhaust
Set
N (kgf, lb)/mm (in)
Lift
A
Standard
mm (in)
B
mm (in) Standard
mm (in) Standard
mm (in) Standard
A
Standard
B
mm (in)
0.25 (0.0098) OS
0.50 (0.0197) OS
Standard
mm (in)
Top ring Standard
mm (in)
Second ring Standard
Oil ring Standard
Top ring Standard
mm (in)
Second ring Standard
Limit
mm (in)
mm (in) Standard
mm (in) Standard
Standard
0.03 (0.0012) US
0.05 (0.0020) US
mm (in)
0.25 (0.0098) US
Standard
mm (in)
ME(H4DOTC)-3
1.0 — 1.4 (0.039 — 0.055)
1.3 — 1.7 (0.051 — 0.067)
5.955 — 5.970 (0.2344 — 0.2350)
5.945 — 5.960 (0.2341 — 0.2346)
0.030 — 0.057 (0.0012 — 0.0022)
0.040 — 0.067 (0.0016 — 0.0026)
104.4 (4.110)
104.65 (4.1201)
mm (in) 44.67 (1.759)
2.5", 2.0 mm (0.079 in)
206 — 236
(21.0 — 24.1, 46.3 — 53.1)/36.0 (1.417)
485 — 537
(49.5 — 54.8, 109 — 121)/26.00 (1.024)
mm (in) 0.025 (0.00098)
mm (in)
92.005 — 92.015 (3.6222 — 3.6226)
91.995 — 92.005 (3.6218 — 3.6222)
0.015 (0.0006)
0.010 (0.0004)
#0.010 — 0.010 (#0.00039 — 0.00039)
mm (in)
92.005 — 92.015 (3.6222 — 3.6226)
91.995 — 92.005 (3.6219 — 3.6222)
92.245 — 92.265 (3.6317 — 3.6467)
92.495 — 92.515 (3.6415 — 3.6423)
0.004 — 0.008 (0.0002 — 0.0003)
Piston pin must be fitted into position with
thumb at 20"C (68"F).
Outer circle side:
0.20 — 0.25 (0.0079 — 0.0098)
Inner circle side:
0.20 — 0.35 (0.0079 — 0.014)
0.40 — 0.50 (0.016 — 0.020)
0.20 — 0.50 (0.0079 — 0.0197)
0.030 — 0.070 (0.0012 — 0.0028)
0.030 — 0.070 (0.0012 — 0.0028)
0.10 (0.0039)
0.070 — 0.330 (0.0028 — 0.0130)
0.026 — 0.052 (0.0010 — 0.0020)
1.486 — 1.498 (0.0585 — 0.0590)
1.504 — 1.512 (0.0592 — 0.0595)
1.514 — 1.522 (0.0596 — 0.0599)
1.614 — 1.622 (0.0635 — 0.0639)
0 — 0.022 (0 — 0.0009)
MECHANICAL
0.1 (0.004)
0.5 (0.020)