Installation manual

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.: [phone]
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 .