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Jacques
Lacasse
 
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Wisconsin S-10D, S-12D,
S-14D
Wisconsin
Engines
Instruction
Book and Parts List
Back issue MM-304
Page 21
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Fig. 29
Fig. 30
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Fig. 31
SLEEVE FOR ASSEMBLING GEAR COVER
WITH OIL SEAL, ON TO CRANKSHAFT.
Fig. 32
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In
reassembly, mount flywheel immediately after crankshaft
is mounted; be sure woodruff key is in position on crankshaft and
is properly lined up with keyway in flywheel hub. Do not drive
flywheel on to taper of crankshaft. Place a short piece of pipe
against hub of flywheel and tap end of pipe with a soft hammer to
seat flywheel on to taper. Mount star washer with tab inserted in
flywheel keyway. Assemble nut and tighten only enough to hold flywheel
in place. Then, after end play is set
(see End Play paragraph) tighten flywheel nut by placing wrench
on nut and giving handle of wrench several sharp blows with a soft
hammer. Bend one tab of star washer over flat on flywheel nut.
GEAR
COVER (Fig's. 31 and 32)
Remove gear capscrews and take off governor lever. Tap the two dowel
ping with a hammer, from crank case
side, and gear cover will break loose from crankcase. Caution: Steel
ball for camshaft end thrust will probably fall out when gear cover
is removed. Take thrust spring out from end of camshaft to prevent
it from becoming lost.
In reassembly;
insert thrust spring into end of camshaft and lubricate bearings,
gear train and tappets.
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Tap dowel
pins into gear cover until they extend about 1/8" past the flange
face. Place a dab of low melting grease into hole of gear cover
to retain camshaft thrust spring ball in place. Lubricate lip
of oil seal and add a light film of oil to gear cover face to
hold gasket in place.
Place sleeve
tool Fig. 32. in oil seal, drop steel ball into grease
filled hole and assemble gear cover by tapping in place with a
soft hammer.
Caution:
Be sure timing marks on crankshaft and camshaft gear, Fig. 41,
remain correctly mated when end of camshaft is pressed into bearing
hole of gear cover.
Note:
Governor yoke must straddle governor shaft extension and bear
against thrust sleeve.
Remove oil
seal sleeve, tighten gear cover capscrews to 22 ft. lbs.
torque and hammer dowel pins in place. Mount governor
lever.
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MI-1117-2
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Fig. 33
Fig. 34
GOVERNOR
FLYWEIGHT ASSEMBLY (Fig's. 33, 34)
The governor gear and flyweight assembly rotates on a stationary
pin pressed into the crankcase and is held in place with a snap
ring.
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Fig. 35
Fig. 36
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To disassemble:
Spread flyweights apart and remove governor thrust sleeve. By
means of a snap ring pliers, snap ring can be removed and the
gear-flyweights slipped off the shaft.
Reassembly
is made in reverse order. Maintain a clearance of .003 to .005"
between gear hub and face of governor shaft boss in crankcase,
see Fig. 34. This end play can be adjusted by tapping the governor
shaft in either direction. Clearance between shaft and gear is
.0005 to .002". When clearance becomes .005", replace worn parts.
CONNECTING
ROD and PISTON (Fig's. 35, 36, 37)
By means of a 1/2" socket wrench, loosen and remove hex nuts from
connecting rod bolts. Oil dipper will come off when nuts are removed.
Then, by tapping the ends of the bolts lightly, the connecting
rod cap will break free from the bolts.
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Scrape
off all carbon deposits that might interfere with removal of piston
from cylinder. Turn crankshaft until piston is at top, then push
connecting rod and piston assembly upward and out thru top of cylinder.
Be careful not to mar the crank pin by allowing the rod bolts to
strike or scrape across it.
The connecting
rod has a removable shell bearing and care should be taken in reassembly
to mount bearing properly. The cap should be assembled to the rod
so that the locating lug of both bearing halves are
on the same side, see Fig. .36. Refer to chart, Fig. 37. for clearance
between shell bearing and crank pin.
The piston skirt
is cam-ground to an elliptical contour.
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MI-1116
Index
Page
23-24
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