
VELVET
DRIVE
TRANSMISSION
Lay-up/Winterize
Storage
requires
special
care.
Follow
these procedures:
0
Drain
the
water
from
the
transmission cooler and replace
it
with
a
proper
mixture
of antifreeze coolant.
NOTE:
This
operation will usually occur when the engine
raw
water cooling system is properly winterized.
0
Clean
up
the
transmission
and
touch-liP
unpainted-
areas
(use
heat
resistant
paint).
0
Fill
the
transmission
with
Dextron
Ill
ATF
fluid
to pre-
vent
internal
corrosion.
·
0
Loosen
attaching
hardware
from
the transmission
output
flange
and
propeller shaft coupling
flange
before
removing
the
boat
from
the
water.
Separate the
flanges
and
spray
with
lubricant.
·
0
Inspect
the
gear shift
cable,
linkage, and attachments.
Look
for
corrosion
of
the
end
fittings,
cracks or cuts in
the
conduit,
and
bending
of
the
actuator
rods.
Lubricate
all
moving
parts.
NOTE:
If
the
transmission is
to
be
stored for a long time
(twelve
months or
more),
it should be topped
off
with
fluid
to
prevent internal
corrosion.
Reduce the fluid level
before
putting
the
engine back into service.
VELVET
DRIVE
TROUBLESHOOTING
Fluid
Leaking
on
Transmission
Housing
Water
Mixing
with
Transmission
Fluid
High
Temperature
Reading
(gauge)
Shifts
Hard
or
Difficult
Engagement
Boat
will
not
move
1. Tighten bolts and
fittings.
2.
Tighten
drain
plug.
3.
Tighten
dipstick,
replace.
Check hose connections,
inspect air
vent.
1.
Replace oil
cooler.
2.
Inspect hoses.
1. Fluid level low-add
fluid.
2.
Inspect cooler/hoses for
leaks.
Tighten dipstick.
3. Dirty cooler
- replace.
1.
Low
fluid level-add
fluid.
2.
Clean/lubricate detent ball.
3. Adjust and lubricant
linkage.
1.
Transmission malfunction-
service.
2.
Propeller
missing.
3. Broken shaft/damper
plate.
4.
Low
fluid
level - add
fluid.
5. Inspect selector position.
6.
Inspect shifting linkage.
OIL
COOLERS
The
continued
flow
of
raw
water through the cooler
will,
it,
time,
erode
the
inside of the cooler causing
cross
leaks
to
occur.
These internal cooler leaks will cause
one
of
the
following
tWo
problems:
1.
Transmission
fluid
will leak into the
flow
of
raw
water
and
be
discharged overboard through the
engine
exhaust.
A loss
of
transmission fluid will cause the transmission
to
fail.
2.
·The
raw
water will leak into the transmission
fluid
· causing
an
increase in transmission
fluid.
This
contaminated
fluid
will appear
as
strawberry
cream.
The
transmission will eventually fail.
Either case requires im immediate response:
1.
Install a
new
cooler.
2.
Refill
the transmission with DEXTRON III
ATF.
If
water
has
contaminated the
fluid,
the transmission
fluid
needs
to
be cleaned out and replaced with
fresh
fluid.
It
will
take
several
fluid
changes to getrid of the
contamination.
Check
your dipstick each time until it
appears
as
pure
transmission
fluid.
Change the transmission
filter
and
clean
out the
fluid
lines that connect
to
the
cooler.
If
the transmission fails
to
shift
properly,
it will most
likely
need
the attention
of
a qualified transmission service
facility.
A transmission cooler may last ten years or
more
but,
in
'some circumstances. depending on operating hours,
tropical
waters,.
maintenance. etc. it might only last half that
time.
WESTERBEKE
recommends having a spare cooler
aboard.
WARRANTY
NOTES
Service
manuals
are available from your BORG
WARNER
dealer.
For assistance, contact:
Velvet
Drive
Transmissions
1208
Old Norris Road
Liberty,
SC 29657
Tel.:
(800)
583-4327
www.
VelvetDrive.com
Velvet
Drive
is
aware of the shock loads that
can
be
placed
on
its
gears
as
the result of mechanical propeller
operation
or
fully
reversing
of the propeller blades while shifting.
Therefore torque loads and directional changes should
be
made
at low engine speeds.
If
it
is
found that a failure
was
caused
by
a shock load,
any
warranty claim will be
denied.
A
CAUTION:
System~retatedilofses
or
vibrations
can
occuratliNlenjine
speeds,whlch
can
cause
gear
rattle
resultiiigin•dainage~tll•the
englne
..
ilnd/ortransinlsslon.
VELVET
DRiVE
IS
not
responsible
for
total
system•related
torsionatVibf:;itloil
of
this
type.
Engines & Generators
48
.
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