INSTALLING ENGINE AND DRIVE UNIT
ZT350 Installation Manual
4-11
Installing the Transom Assembly
12/05
© 2007 Yanmar Marine International
Alternate Seawater Pickup
Seawater for engine cooling can be supplied
through an alternate (separate) seawater pickup,
not through the drive unit. When using a separate
seawater pickup, it is necessary to cover the drive
unit seawater passage and to cut the water line in
order to circulate seawater through the drive unit for
cooling.
NOTICE: Installation of a water inlet cover plate will
make it necessary to provide an alternate seawater
pickup and related hardware. Depending upon
application and boat configuration a
through-the-hull or through-the-transom seawater
pickup must be used.
CAUTION!
Avoid overheating the drive unit. The
drive unit water inlet holes must be allowed to
flow water without being obstructed, or
overheating damage to drive unit may result.
NEVER dead-end the water hose from the bell
housing. The hose must be cut as
recommended.
1. Use pliers to remove the insert in the gimbal
housing. Discard the insert.
Figure 4-18
Figure 4-18
1 – Pliers
2 – Ring
3 – Insert
4 – Gimbal Housing
2. Install the plate (seawater inlet) with a new
gasket.
3. Install the lock washers and plate bolts.
4. Torque the bolts.
Figure 4-19
Figure 4-19
1 – Bolts
2 – Lock Washer
3 – Plate (Seawater Inlet)
4 – Gasket
(1) (2)
(
3
)
(2) (
3
)
(4)
0006057
Plate (Seawater Inlet) Bolt Torque
N·m
lb-in.
6
53
(
3
)
(4)
(2)
(1)
000605
8
