Gearcase - Right (28)
Crankshaft
Assembly (88)
Bearing Retaining Plate (75)
Drive Hub Bolt (74)
Left hand thread
Screws (26)
Gearcase - Left (71)
Do not wash crankshaft
assembly (88) in solvent solutions;
Wipe off only using clean, dry, lint-free cloth.
Removing Crankshaft Assembly (88) from Left Gearcase (71)
Remove, crankshaft assembly (88) from left gearcase (71) by separating / removing right
housing half (28). Remove bearing retaining plate screws (26) and bearing plate (75) from left
gearcase (71). Place a 3/16” diameter x 1-1/2” long steel rod through the holes found in the
counter balance and drive hub of crankshaft assembly (88) until it bottoms out.
Next place a 3/16” hex key into drive hub bolt (74) and turn drive hub bolt slowly in a clockwise
direction until 3/16” steel pin rest against crankshaft assembly connecting rod. The 3/16” hex
key can now be forcibly turned clockwise to loosen and remove drive hub bolt (74).
Reinstalling Crankshaft Assembly (88) into Left Gearcase (71)
To reinstall drive hub bolt (74) to crankshaft assembly (88) apply Blue Loctite
®
to threads of drive hub bolt (74)
and insert through spacer (73) aligning threads of drive hub bolt (74) with internal threads of crank-shaft
assembly hub. Use a 3 /16” hex key to turn the drive hub bolt (74) slowly in a counter clockwise direction until
3/16” steel pin rest against crankshaft assembly connecting rod (See ‘Removing Crankshaft Assembly’
instructions above). Using an inch pound torque wrench and a 3/16” hex key, torque drive hub bolt (74) to
210-240 in. lbs. or bolt can be tightened using a ft. lbs. torque wrench to 17-20 ft. lbs.
Orbit Slot
Screws (26)
Left Gearcase (71)
Barrel
Cam (9)
Extension
Spring (10)
As an aid to install Extension Spring (10), assemble gearcase
components as shown. Loosen but do not remove the four
orbit Slot Screws (26). This will allow for the front end
assembly, including the Barrel Cam (9) to pivot away
from the Left Gearcase (71). There should be enough
room to attach the Extension Spring to the top recess
area in the Barrel Cam and small hole in the bottom
front of the Left Gearcase. Spring should wrap
around the side of the Barrel Cam and
rest inside channel in the gearcase
half. Retighten the four Orbit
Slot Screws.
