Robin America EH72, Service Manual

Page: 35 / 74

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C. PISTON and CONNECTING ROD
(1) Install oil ring first, then second ring and top ring. Spread ring only far enough to slip over piston and
into correct groove. Use care not to distort ring.
(2) Apply enough oil to small end of connecting rod and piston pin, and fix connecting rod to piston with
piston pin.
(3) Use clips on the both side of the piston pin to secure piston pin in position.
TOP
RING
SECOND
RING
OIL
RING
1
2
3
BARREL
TAPER
COMBINATION
RING
1
2
3
MAIN BEARING COVER
GOVERNOR
SLEEEVE
GOVERNOR GEAR
GOVERNOR
GEAR SHAFT
WASHER : 2 pcs.
THRUST BEARING
Fig. 5-31
D. MAIN BEARING COVER and GOVERNOR GEAR
(1) Insert washer into governor gear shaft.
(2) Insert governor gear along with sleeve into
governor gear shaft.
Fig. 5-30
NOTE ;
* Install second ring with punched mark beside the gap on the top side.
* Top ring can be fit either way.
* As for oil ring, rails should be placed on and below the expander.