Subaru 2002 IMPREZA Service Manual page 177

CYLINDER HEAD ASSEMBLY
MECHANICAL
7. VALVE LIFTER
1) Check the valve lifter visually.
2) Measure the outer diameter of valve lifter.
Outer diameter:
34.959
-
34.975 mm (1.3763
-
1.3770 in)
02M122;
3) Measure the inner diameter of valve lifter mating
part on cylinder head.
Inner diameter:
34.994
-
35.016 mm (1.3777
-
1.3786 in)
1400
CAUTION:
If difference between outer diameter of valve
lifter and inner diameter of valve lifter mating
part is over the limit, replace the cylinder head.
Standard:
0.019
-
0.057 mm (0.0007
-
0.0022 in)
Limit:
0.100 mm (0.0039 in)
ME(D0HC TURBO)-71