11
11-7
(1) Non-backlash mechanism
• Engine hunting during idling causes
fluctuation in the speed of camshaft
and No. 2 idler gears.
• Without the non-backlash mechanism,
the backlash changes between zero
and the maximum, generating gear
rattle noise.
• With the non-backlash mechanism
equipped on the engine, the sub-gears
A and B maintain the backlash to zero
even when the engine hunts, eliminat-
ing gear rattle during idling.
7. Flywheel
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