Subaru XT 1988 Service Manual page 203

ENGINE
2-3
Mark
fI
L2-483
Fig. 106
Matching number
A5·101
Fig. 107
PISTON
1) Install piston rings on pistons as follows.
Install oil ring spacer, upper rail and lower rail in this order by
hand. Then install second ring and top ring with a piston ring
expander.
47
2) Position the gaps of the piston rings and oil ring as shown
in the figure.
Top ring
Oil ring upper
rail
rcnih:A
Oil ring lower
rail
Second ring
Oil ring spacer
and attach to 3.5 mm (0.138 in) dia.
hole.
t
Bend over pawl of upper rail
L2·1373
Fig. 108
3) Install circlip to piston.
The circlip must be fitted to the end that faces inside of
crankcase when piston is inserted.
Circlip must be installed in correct direction with its end
facing out.
Face this end outward.
Install one side first.
L2·581
Fig. 109