Subaru 2002 IMPREZA Service Manual page 282

MECHANICAL
D: ASSEMBLY
(1) Connecting rod bearing
(2) Connecting rod
(3) Connecting rod cap
(4) Oil ring
1) Install the connecting rod bearings on connect-
ing rods and connecting rod caps.
CAUTION:
Apply oil to the surfaces of the connecting rod
bearings.
2) Install the connecting rod on crankshaft.
CAUTION:
Position each connecting rod with the side
marked facing forward.
3) Install the connecting rod cap with connecting
rod nut.
Ensure the arrow on connecting rod cap faces the
front during installation.
CAUTION:
• Each connecting rod has its own mating cap.
Make sure that they are assembled correctly by
checking their matching number.
• When tightening the connecting rod nuts, ap-
ply oil on the threads.
4) Install the expander, lower rail and upper rail in
this order by hand. Then install the second ring and
top ring with a piston ring expander.
CYLINDER BLOCK
(5) Second ring
(6) Top ring
(7) Circlip
E: INSPECTION
1. CYLINDER BLOCK
1) Visually check for cracks and damage. Especial-
ly, inspect the important parts by means of red lead
check.
2) Check the oil passages for clogging.
3) Inspect the crankcase surface that mates with
cylinder head for warping by using a straight edge,
and correct by grinding if necessary.
Warping limit:
0.05 mm (0.0020 in)
Grinding limit:
0.1 mm (0.004 in)
Standard height of cylinder block:
201.0 mm (7.91 in)
2. CYLINDER AND PISTON
1) The cylinder bore size is stamped on cylinder
block's front upper surface.
CAUTION:
Measurement should be performed at a temper-
ature 20° ° ° ° C (68° ° ° ° F).
NOTE:
Standard sized pistons are classified into two
grades, "A" and "B". These grades should be used
as a guide line in selecting a standard piston.
ME-86
Tightening torque: N·m (kgf-m, ft-lb)
T: 44.6 (4.55, 32.9)
B2M1320J