TM 9-1829A, April 1944
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2021-07-07
Section II: 659-type drive joints
61. Description
a.
The Stewart-Warner 659 distributor-type drive joint (fig. 149) consists of a drive gear and shaft assembly and
a driven gear mounted in a heavy casting. It is equipped with sturdy mounting brackets, and a threaded sleeve
for attaching the flexible shaft. The 659 drive joint is furnished in several different models to fit various types
of distributors.
Figure 149: Stewart-Warner 659 Distributor-type drive joint
62. Operation
The drive joint is mounted on the engine between the distributor head and its drive, and merely transmits power
from the distributor drive to the flexible shaft leading to the instrument.
63. Repair
The only parts of this type adapter that would normally require service are the drive gear and shaft assembly and
the driven gear (fig. 150). To replace the drive gear and shaft, merely slip the old one out of the upper end of the
casting, cover the new assembly with No. 00 grease, O.D., and slip it in place. To replace the driven gear, unscrew
the sleeve from the casting, slip out the driven gear, cover the new gear with lubricant, slip it in place, and replace
sleeve. Stewart-Warner drive joints and adapters, other than the 659- and 666-type, are replaced as a unit if
defective.
Figure 150: Stewart-Warner 659-type drive joint, partially disassembled