Fig. 1 - Variable Speed Mechanical Governor
4. Disconnect the oil tube at the governor weight
a. Loosen the clamping bolt and remove the stop
housing, or cover.
lever from the shaft. Remove the lever torsion
5. Remove the two governor-to-cylinder head bolts.
b. Remove the control shaft lock ring and seal
retainer. Withdraw the control shaft from the
6. Remove the control housing from the cylinder head
and weight housing.
c. Remove the seal ring from the governor cover.
d. Wash the cover assembly (on former engines
7. Use wrench J 4242 and remove the six governor
the cover assembly contained two needle
weight housing-to-blower bolts, then withdraw the
bearings, however on current engines, the cover
housing from the blower.
assembly contains a bushing which is not
serviced, When replacement is necessary use
needle bearings) thoroughly in clean fuel oil and
inspect the needle bearings or bushing for wear
With the cover removed from the control housing,
disassemble the governor as follows:
e. If needle bearing or bushing removal is
necessary, place the inner face of the cover
over the opening in the bed of an arbor (Fig. 4).
Place remover J 21967-01 on top of the bearing
or bushing and