Subaru 2002 IMPREZA Service Manual page 1073

(3) Adjust the SHIM REPLACER notch to valve
lifter and set it.
NOTE:
When setting, be careful the SHIM REPLACER
edge does not touch shim.
(4) Tighten the bolt (A), and then install it to the
cylinder head.
(5) Tighten the bolt (B), and then insert the
valve lifter.
VALVE CLEARANCE
(6) Insert tweezers into the notch of valve lifter,
and then take the shim out.
H2M3628
NOTE:
By using a magnet (A), the shim (B) can be taken
out without dropping it.
3) Measure the thickness of shim with a microme-
ter.
H2M3623A
4) Select a shim of suitable thickness using mea-
sured valve clearance and shim thickness, by refer-
ring to the following table.
5) Set the suitable shim selected in step 4) to valve
lifter.
Intake valve: S =(V + T) - 0.20
Exhaust valve: S =(V + T) - 0.25
S: Shim thickness to be used
V: Measured valve clearance
T: Shim thickness required
ME(TURBO)-31
MECHANICAL
H2M3629
H2M3624A
B2M1240
Unit: mm