Subaru IMPREZA GD 2007 Series Manual page 2405

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MECHANICAL
Surface warpage limit
(Mating surface with cylinder head)
Grinding limit
Standard height
Inside diameter
Cylinder
block Taper
Out-of-roundness
Piston clearance
Cylinder inner diameter boring limit (diameter)
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
Thrust clearance
Oil clearance
Bearing of
large end
Thickness at center portion
Bushing of Clearance between piston pin
small end and bushing
General Description
mm (in)
mm (in)
mm (in)
A
mm (in) Standard
B
Standard
mm (in)
Limit
Standard
mm (in)
Limit
Standard
mm (in)
Limit
mm (in)
A
Standard
B
mm (in)
0.25 (0.0098) OS
0.50 (0.0197) OS
Standard
mm (in)
Limit
Standard
Top ring
Limit
Standard
Second
mm (in)
ring
Limit
Standard
Oil ring
Limit
Standard
Top ring
Limit
mm (in)
Standard
Second
ring
Limit
mm (in) Limit
Standard
mm (in)
Limit
Standard
mm (in)
Limit
Standard
0.03
(0.0012)
US
0.05
mm (in)
(0.0020)
US
0.25
(0.0098)
US
Standard
mm (in)
Limit
ME(H4DOTC)-4
0.025 (0.00098)
0.1 (0.004)
201.0 (7.91)
99.505 — 99.515 (3.9175 — 3.9179)
99.495 — 99.505 (3.9171 — 3.9175)
0.015 (0.0006)
0.050 (0.0020)
0.010 (0.0004)
0.050 (0.0020)
–0.010 — 0.010 (–0.0004 — 0.0004)
0.030 (0.0012)
To 100.005 (3.937)
99.505 — 99.515 (3.9175 — 3.9179)
99.495 — 99.505 (3.9171 — 3.9175)
99.745 — 99.765 (3.9270 — 3.9278)
99.995 — 100.015 (3.9368 — 3.9376)
0.004 — 0.008 (0.0002 — 0.0003)
0.020 (0.0008)
Piston pin must be fitted into position with thumb at
20°C (68°F).
0.20 — 0.25 (0.0079 — 0.0098)
1.0 (0.039)
0.37 — 0.52 (0.015 — 0.020)
1.0 (0.039)
0.20 — 0.50 (0.0079 — 0.0197)
1.5 (0.059)
0.04 — 0.08 (0.0016 — 0.0031)
0.15 (0.0059)
0.030 — 0.070 (0.0012 — 0.0028)
0.15 (0.0059)
0.10 (0.0039)
0.070 — 0.330 (0.0028 — 0.0130)
0.4 (0.016)
0.017 — 0.045 (0.0007 — 0.0018)
0.05 (0.0020)
1.490 — 1.502 (0.0587 — 0.0591)
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)
0.030 (0.0012)