A S S O C . & T H U N D E R T I G E R o n l y
Step 7
B A G O
REMOVE THESE
PARTS FOR:
Steps 7-8
T O O L S U S E D
.050", 3/32"
s t e p 7
ENGINE INSTALLATION
Line up your engine with the
clutch assembly and flywheel
assembly in your engine
mount. Center your engine on
your mount. Now fasten the
motor to the mount with four
#6925 screws. Do not tighten
yet.
6925, qty 4
4-40 x 1/2 screw
1:1
6925
23
GEAR MESH
Now we set the spur gear-to-pinion
gear spacing, otherwise known as
"gear mesh." Make sure you can still
slide your engine mount, then mesh
the clutch bell pinion with the spur
gear. The correct gear spacing is
when the pinion is as close to the
spur gear as possible, but if you hold
the pinion gear, you should still be
able to rock the spur gear back and
forth slightly with light pressure. Roll
the gears and check the mesh in
several different locations on the
spur gear teeth to check if the spur
gear is slightly out of round.
6925
7557, qty 1
throttle pivot
7558, qty 1
throttle pivot clip
7560, qty 1
throttle ball cup
7560, qty 2
throttle rod,
brake rod
7560, qty 4
collar
6951, qty4
set screw
1:1
3721, qty
2-56 screw
1:1
7560, qty 1
spring
4118, qty 1
spring
7560, qty 1
washer
1:1
7559, qty 1
servo horn adapter
s t e p 6
FLYWHEEL ASSEMBLY
Install one #7618 collet spacer followed by one #7618 collet.
Install the #7610 or #7612 flywheel followed by the stock flywheel nut
supplied with your engine. Tighten the nut securely down, locking the
flywheel to the collet. Get it as tight as you can.
7601
6902
7605
2661
6
7618 spacer
7618 collet
flywheel
7610 (non pull start)
7612 (pull start)
stock nut
CLUTCH ASSEMBLY
Install your #7601 clutch shoes on the clutch
pins on the flywheel as shown.
Install one stock shim that came with your
engine, one #6902 flanged bearing, followed
by the #7605 15 tooth clutch bell, and the
second #6902 flanged bearing. Install the
second stock shim.
Install the #2661 clutch nut E-clip where
shown.
Continue to Step 7.
6902
stock shim
stock shim
Step 8
The clutch shoes should
be facing this direction
when installed.
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