16
SECTION 6. GOVERNORS
This Governor Assembly is used on current production
HH & OH Tecumseh Engines.
To position the governor gear assembly, insert the
shaft opposite the flyweights into the cylinder block.
Position the governor gear assembly (with washer
under governor gear) to mesh with the camshaft gear.
Place the governor spool (with washer under the
spool) on the governor gear assembly, with the fingers
of the flyweights under the rim of the spool.
There is an oil groove on the inside of the spool to
prevent oil pressure from building up under the spool.
Position the governor gear and flyweight assembly
on the governor gear shaft. Secure with a retaining
ring. Place the governor spool on the governor gear
shaft.
The spool is positioned on the governor gear shaft
with the fingers of the flyweight under the rim of the
spool.
Some models have an oil hole in the closed end for
lubrication. CAUTION: On reassembly make sure
hole is open. Other models have a groove on the
inside that serves the same purpose.
Remove the governor gear shaft by threading the
shaft with 1/4-28 die. Place a number of washers
on the shaft and turn on a nut. By tightening the nut
against the washers the shaft will be pulled from
the cylinder.
For old style governor assembly, position the governor
gear shaft over the opening in the cylinder block
and tap lightly with a hammer to start. Use a press
to position. Refer to top picture for proper pressed
in depth. Measure from the top of the governor gear
shaft to the machined surface on the cylinder block.
GOVERNOR GEAR
WASHERS
SHAFT PRESSED TO GEAR
SPOOL
FLYWEIGHT
ASSEMBLY
GOVERNOR
GEAR
GOVERNOR GEAR
FLYWEIGHT
GOVERNOR SHAFT
GOVERNOR SPOOL
GROOVED SLOT
(INTERNAL)
OIL HOLE
(ON SOME MODELS)
GOVERNOR
GEAR SHAFT
RETAINING RING
WASHER ON
SOME MODELS
GOVERNOR GEAR AND
FLYWEIGHT ASSEMBLY
PRESS GOVERNOR
“GEAR SHAFT’
INTO THIS DIMENSION*
RETAINING RING GROOVE
*1.031” (26.187 mm)
ON MODELS WITH WASHER
1” (25.4 mm)
WASHER
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