Piston (Except V3300-E3Bg; Built-In Dynamic Balancer (Factory Option Except V3600-E3Cb, V3600-T-E3Cb, V3800Di-T-E3Cb - Kubota V3600-E3 Shop Manual

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM

[7] PISTON (EXCEPT V3300-E3BG)

[8] BUILT-IN DYNAMIC BALANCER (FACTORY OPTION EXCEPT V3600-
E3CB, V3600-T-E3CB, V3800DI-T-E3CB)
Piston's skirt is coated with molybdenum disulfide ,
which reduces the piston slap noise and thus the entire
operating noise.
Molybdenum disulfide (MoS
The molybdenum disulfied serves as a solid lubricant,
like a Graphite or Teflon. This material helps resist metal
wears even with little lube oil.
(1) Molybdenum Disulfide
Engine are sure to vibrate by piston's reciprocation.
Theoretically, three-cylinder engines are much less
prone to cause vibration than four-cylinder ones (second
inertia, etc.). However, any engine has many moving
parts in addition to its pistons and cannot be completely
free from vibration.
The four cylinder engine is fitted with balance weight
on crankcase to absorb the second inertia mentioned
above and reduce vibration.
M-8
DIESEL ENGINE
)
2
W1015665
W1013617