Reassembly Procedures WM 130/170/270 Repair
wc_tx000379gb.fm 54
9.4 Piston and Piston Rings
See Graphic: wc_gr001749, wc_gr001792, and wc_gr001793
Note: When installing the piston rings, make sure not to twist the rings
too much as they may be damaged.
9.4.1 Install each piston ring in the correct groove of the piston by widening
it enough to slide it over the piston.
9.4.2 Install the oil ring (c
1
or c
2
) first.
9.4.3 Install the second ring (b) with the āNā mark facing up.
9.4.4 Install the top ring (a).