MTD Engine - Series 350/450/650
15
6.13. Carefully lift the spring and pulley out of the
recoil housing. See Figure 6.13.
NOTE: The spring is nested within the starter
pulley. Service intent is to supply both parts
assembled under a single part number.
NOTE: If the spring is undamaged, but has been
removed from the pulley, the spring may be re-
wound. Engage the hook in the end of the spring
with the slot in the outer lip of the recess that the
spring fits in, and wind the spring into the recess
in a counter-clockwise direction.
6.14. Evaluate the damage, including parts prices and
local labor rates. In some parts of the country, it
makes economic sense to replace the complete
assembly, in other areas labor rates favor repair.
6.15. On assembly, apply a small amount of lithium-
based chassis grease to the surface of the recoil
housing that contacts the spring.
6.16. Carefully position the pulley and spring in the
recoil housing. Rotate the pulley gently counter-
clockwise until the spring seats, allowing the pul-
ley to fall into position.
Figure 6.13
Pulley
Spring
Housing
Lithium grease
6.17. Install the torsion springs and pawls so that the
long arm of the spring reaches outside of the
pawl, and draws it toward the center of the
assembly. See Figure 6.17.
6.18. The rolled end of the pawl fits in the recess in the
starter pulley. The hooked end engages the
starter cup. Both the roll and the hook face
inward.
6.19. The extrusions on the pressure plate should fall
inside of the pawls as the starter is assembled.
NOTE: Drag on the pressure plate, from the fric-
tion between the compression spring and the
head of the shoulder screw causes these extru-
sions to force the pawls outward, engaging the
starter cup.
6.20. Apply a small amount of thread locking com-
pound such as Loctite 242 (blue) to the threads
of the shoulder screw, and install the screw.
Tighten it to a torque of 71 - 88.5 in-lb. (8 - 10
Nm).
6.21. Wind the pulley 6 turns in the counter-clockwise
direction, to tension the spring. Align the rope
hole in the pulley with the rope eyelet in the
recoil housing, and secure it with a spring clamp.
Figure 6.17
Shoulder screw
Pressure plate
Compression spring
Pawl
Torsion
spring
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