Honda InterceptorVF700F - VFR75001790123.PDF

I{ONIXDA
V45 INTERCEPTOR,
TECHNICAL
FEATURES
O}IE.I||AY CLUTC|| SYSTEM
Purpose:
On rapid
downshifting
from
high
RPM,
the
compression braking
forces
created by
the
engine can
exceed
the rear
wheel's
traction;
the engine
becomes a
rear wheel
brake. This
can cause
momentary
lockup
of the rear
wheel
-
until
the
compression
braking force
drops
below
the level
necessary
to make the rear
tire
break traction. lf
multiple
downshifts
are made, the
result
will be a
much longer
loss
of traction. The
one-way
clutch system
has been
specifically
designed
to
prevent
this loss
of
traction.
CLUTCH
INNER
(has
splines)
ONE-WAY
CLUTCH
ONE.WAY SPRAG
CLUTCH
(Splined
to mainshaft)
CLUTCH
INNER
(no
splines
but
receives
power
via
the
one-way
sprag
clutch)
OUTER
PORTION
Design:
The
major difference
between this
system
and a
conventional clutch is
a two-piece
clutch inner.
In addition, the
outer
portion
of
the clutch inner,
that which
controls
the
majority of
the clutch
plates
and discs,
is driven
by a special one-way
sprag
cl
utch.
o
The inner
portion
of
the clutch inner is
splined to the transmission's
mainshaft
as is
normal.
But it
only
controls
about
two-fifthes
of the clutch
plates
and discs.
This
portion
of the clutch
transmits
power
and deceleration
forces in
the
usual
manner.
o
The
outer
portion
of the
clutch inner is not
splined to the transmission's
mainshaft.
lt
controls about
three-f ifthes
of the
clutch
plates
and discs. This
portion
transmits
power
when
the sprag clutch is
locked
up, such
as
during normal
acceleration,
cruising,
and deceleration.
Operation:
When
the
transmission
is downshifted
from
high
RPM,
it
causes
a
backloading
at the
clutch because
of
the forces
generated
by the
engine's compression
braking
effect.
lf
these
forces
approach that
which will
cause
the rear wheel
to lock
up, tne
one-way
clutch will
disengage
the
outer
portion
and allow the
inner
portion
to slip. lt
will
do this to a degree
that
allows the
rear
wheel
to maintain
traction
while
maintaining
the
highest
effect of engine braking.
So rather
than being a harsh
ON or
OFF
mechanism,
the
one-way
clutch
determines
the
correct amount
of
slip for
each situation.
all the while
maintainino
maximum
possible
engine braking
effect.
Date
of lssue: January,
1983
O HONDA MOTOR
CO.. LTD.
o
INNER
22-2