Tecumseh TC Series User Manual

19
CHAPTER 5 REWIND STARTERS
GENERAL INFORMATION
TC series engines have the recoil assembly as a part of the engine's blower housing. Two different styles of recoil
starters are used along with different starter rope locations. Use the engine model and specification number to identify
the recoil style and correct replacement parts.
OPERATION
TYPE I
As the starter rope is pulled, the starter pulley rotates on
the center leg of the starter. The starter pawl is connected
to the starter pulley by an offset hole in the pawl and a
corresponding raised boss on the pulley. The pawl has a
oversize inside diameter which allows the pawl to be pulled
off center. The flat contact surface of the pawl engages
with one of the flywheel fins. This engagement turns the
flywheel until the engine fires and the flywheel speed
exceeds the speed of the starter pulley. The flywheel fins
push the pawl (using the ramp side) to the disengaged
position. The brake spring slows the pulley and pawl from
turning (diag. 5-1).
TYPE II
This starter uses two engagement pawls bolted to the
flywheel with shoulder bolts. Each pawl uses an
engagement spring to keep the pawl in contact with the
pulley hub. The pawls lock into two of the four notched
surfaces when the starter rope is pulled. When the engine
fires and the flywheel speed exceeds the speed of the
starter pulley, the pawls disengage, and centrifugal force
keeps the pawls in the disengaged position (diag. 5-1).
COMPONENTS
1. Blower Housing
2. Recoil Spring
3. Washer
4. Pulley
5. Pawl
6. Brake Spring
7. Retainer
8. Retainer Screw
SERVICE
Starter related problems will require the starter to be
removed from the engine to diagnose the cause. On TC
Type I engines, try starter operation off the engine to see
pawl engagement. Visually inspect the starter pawl, brake
spring, retainer, pulley, washer(s) and rope for wear or
breakage. Repair or replace as necessary. On TC Type II
engines, recoil disassembly is necessary only if the pulley
is worn, the recoil will not retract, or the rope needs
replacement. Check starter pawl engagement on the
flywheel for broken springs, sticking or bent condition, or
loose pawl screws.
DISASSEMBLY PROCEDURE
1. Remove the fuel tank spring and recoil assembly
from the engine. On TC Type II engines, the air filter
and fuel tank must be removed before the recoil
assembly.
5-2
5-1
Type II
Type I
1
4
2
3
8
9
10
12
1
4
2
3
5
6
7
8
12
9. Dog Screw
10. Starter Dog
11. Pawl Spring
12. Flywheel
11
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Tecumseh TC Series Specifications

General

Brand	Tecumseh
Model	TC Series
Category	Engine
Language	English