Subaru 2002 IMPREZA Service Manual page 192

CYLINDER BLOCK
3. PISTON AND PISTON PIN
cracks, and wear and the piston ring grooves for
wear and damage. Replace if defective.
4) Check the circlip installation groove on the piston
for burr (A). If necessary, remove burr from the
'1
Check the pistons and piston pins for damage,
groove so that the piston pin can lightly move.
2) Measure the piston-to-cylinder clearance at
each cylinder. <Ref. to ME(D0HC TURBO)-84,
CYLINDER AND PISTON, INSPECTION, Cylinder
Block.> If any of the clearances is not within speci-
fication, replace the piston or bore the cylinder to
use an oversize piston.
3) Make sure that the piston pin can be inserted into
the piston pin hole with a thumb at 20°C (68°F). Re-
place if defective.
(A),
B2M0420E
I ~~ ~
5) Check the piston pin circlip for distortion, cracks
and wear.
Standard clearance between piston pin and
hole in piston:
Standard
0.004
-
0.008 mm (0.0002
-
0.0003 in)
0.020 mm (0.0008 in)
Limit
B2M1401
B2M0084A
I
Micrometer
ME(D0HC TURBO)-86