Onan MJA Series Service Manual page 88

86 ENGINE DISASSEMBLY
IF FEELER WILL
ENTEP Yz·,INSTAl.l.
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~
f"-.... --::-
~
LTHRlJST BALL.
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°/
1
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(Late modelS have
' - - - - - ! > .
larger ball which
FIG 3 . 9.B _ GEAR COVER INSTALLA TION won't fall out.)
3. 9. 2. 1 Governor Shaft. - The governor shaft is supported by 2 sets of
needle bearings. To remove the shaft, remove the yoke and pull the
shaft from the gear cover.
If
the shaft is binding, clean the bearings,
if
loose, replace the bearings. To remove the larger bearing, drive
both bearing and oil seal out from the inside of the gear cover. Remove
the smaller bearing with an Easy-Out or similar tool. Press new
bearings and oil seal into place.
3.9.2.2 Gear Cover Oil Seal. - Replace the oil seal if damaged or worn.
Drive the old seal out from inside
the
gear cover. Lay the cover on a
board so the seal boss is supported. USing an oil seal driver, insert
the new seal from the inside with
rubber Up toward outside of gear
cover (open side of seal inward)
and drive
it
flush with the outside
surface. During gear cover in ­
stallation, use the .driver to pro­
te ct the oil seal.
3.9.2.3 Assembly, Gear Cover.­
l.
Work the governor shaft to
check for binding and see
that thegovernor-shaft-end­
thrust ball is in place (Fig
3.9.B).
I
I
1'tJ
INSTALL OIL SEAL
FLUSH WITH THIS
SURFACE
THIS SUR'ACE MUST
BE CLEAN BE'ORE
INSTALLI NG SEAL
FIG 3.9. C - GEAR COVER OIL SEAL