Quantcast TIMING ADJUSTMENT (Continued) - TM-9-2815-220-240239

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TM 9-2815-220-24
INTAKE AND EXHAUST VALVE TIMING PROCEDURE
0035 00
TIMING ADJUSTMENT (Continued)
CAUTION
Do not force shouldered shaft while installing. Damage to the shaft
and gears may occur. The shaft is machined with a 24-tooth spline on
inner end and a 28-tooth spline on outer end. The difference in the
number of teeth provides a vernier effect which makes it possible to
index the shouldered shaft so it will engage the splines of the inner
bevel gear shaft and the outer bevel gear shaft at some point within
360 degrees. An accurate installation is then provided without
changing the relationship of the camshaft and the crankshaft.
NOTE
It may be necessary to repeat the following operation a number of
times before splines will mate and allow shouldered shaft to be
inserted into position.
7. Insert shouldered shaft (22).
a. Maintain the position of camshaft assembly (23) and insert shouldered shaft (22), using
mechanical puller (20) (item 89, WP 0176).
b. Mate splines on lower (not illustrated) and upper (19) bevel gear-shafts.
c. If splines of shouldered shaft (22) do not mate with lower and upper bevel gear shafts,
withdraw shouldered shaft (22) and turn slightly before again attempting insertion.
19
22
20
WP 0035 00-9

 


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