Hweiteh.Com — Repair Procedure

A Hweiteh.Com service procedure — check it applies to your exact model before use.

Procedure

0.79").
d=16.5 mm (0.65") above boat bottom
Transom Aquamatic
25
Twin engine installation
Centerline spacing
NOTE! The minimum engine centerline distance
for twin engine installation determines the transom
shield centerline and engine spacing. The centerline
distances for D4 and D6 engines are min. 950 mm
(38").
10. Use a carpenter’s square to mark the transom.
Place a mark at (A), the selected engine centerline
distance to port of the transom centerline. Place a
second mark (B) at the selected engine centerline
distance to starboard of the transom centerline.
11. Make similar measurements from the transom
centerline near the bottom of the boat to locate the
bottom points.
12. Use a carpenter’s square or straight edge to
connect both port and starboard transom shield cen-
terline marks. Check the distance at both top and
bottom to ensure the transom shield centerlines are
equidistant from the transom centerline used as a
reference.
X-measurement
13. Determine the X measurement from the table
on the following page and mark the heights from the
boat bottom to the crankshafts center, the X mea-
surement.
A
B
Aquamatic Transom
26
Transom angle, α°
15
14
13*
12
11
10
Twin installation,
354
351
348
345
342
339
drive DPH/DPR X (13.94)
(13.82)
(13.70)
(13.58)
(13.46)
(13.35)
*) A 13° angle of the transom is recommended.
Recommended X-dimensions. Measurements in mm (inches)
D/d-measurement, cavitation plate–boat bottom
When using the recommended X-dimension the D/d-measurement can be used
as a reference measurement.
Reference measurement (Y) mm (inches). Lowest edge of shield–boat bot-
tom
D
D
DPH
d
d
DPR
Twin installation
DPH (D)
24.0 mm (0.94") below boat bottom
DPR (d)
24.5 mm (0.96") above boat bottom
DPR only:
Twin installations with a stepped hull:
Start by reducing X-measurement with 10 mm (3/8"). Check and test position of drive.
d=14.5 mm (0.57") above boat bottom
Minimum engine center distance
950 mm (38")
Measure X along
slant of transom
Crankshaft
centerline CL
X
X
Keel line
Y
Transom angle, α°
15
14
13
12
11
10
Twin installation,
55
52
49
46
43
40
drive DPH/DPR Y
(2.17)
(2.05)
(1.93)
(1.81)
(1.70)
(1.57)
α°
Transom Aquamatic
27
6. Paint or coat all cutout surfaces with topcoat or
sealer.
5. Chamfer the inside of the transom as in the figure,
for water to drain out.
40 mm
1½"
20 mm
3/4"
1. Align fixture 3863258 against the transom. The "V"
notches must coincide with the centerline and the
horizontal line at four points.
NOTE! The "UP" marking on the drill fixture.
Using the drill fixture,
special tool 3863258
2. Temporarily attach the drill fixture with two self tap-
ping screws Ø 6 mm (1/4") (A).
Drill all six holes Ø 14 mm (9/16").
NOTE! Drill perpendicularly to the transom.
3. Mark off the transom shield hole on the transom
with a pencil.
NOTE! No marking around the attaching screws.
4. Cut out the hole using a jig saw. Make sure you
hold the saw at an angle of 90° against the transom.
UP
A
A
Aquamatic Transom
28
Using the paper template
1. Attach the template to the transom so that the ver-
tical and horizontal lines through crankshaft center
(CL) on the template and the transom coincide.
2. Use a 6 mm (1/4") drill and mark up the six holes
by drilling to a depth of approx. 5 mm (0.2").
∅6 mm
(1/4")
3. Drill the six holes 14 mm (9/16") for the transom
shield bolts.
NOTE! Make sure you drill at absolutely right angles
to the transom. Also make sure you locate the holes
in their exact positions. Failure to do so will make it
extremely difficult to fit the transom shield. Use of
a portalign drill giude to ensure that the holes are
drilled at right angels to the transom through the tran-
som.
CL
4. Cut out the transom shield hole in the paper tem-
plate. Use a pencil and mark off the transom shield
hole on the transom. Drill a hole in any of the corners,
big enough to allow a jig saw to enter.
Remove the template.
5. Use a jig saw and cut out the hole. Make sure that
you hold the saw at right angles to the transom.
Transom Aquamatic
29
Installing the transom shield
1. Pass the trim pump, the hydraulic steering hoses,
the shift cable protection hose and the water inlet
hose through the transom cutout.
NOTE! The hoses shall always be placed on the
starboard side.
2. Align the transom studs with the holes in the tran-
som and press the transom shield flush against the
transom.
40 mm
1½"
20 mm
3/4"
6. Chamfer the inside of the transom as per figure, for
water to drain out.
7. Paint or coat all cut surfaces with top coat paint.
Note! In a DPH twin installation, the starboard TSK
have the steering cylinder on the starboard side and
the port TSK have the steering cylinder on the port
side, see figure below.
In a DPR twin installation, the starboard TSK and
port TSK have steering cylinders on both sides.
1. Steering cylinders
2. Shields
3. Valve block
Aquamatic Transom
30
4. Install the trim pump on the transom or on a bulk-
head. Make sure it is easily accessible for oil filling
and service, and well clear of any possible bilge wa-
ter.
IMPORTANT! The trim pump must be installed
vertically. Please refer to the picture above.
5. Insert the shift cable through the protective hose
and out through the transom shield. Apply some oil
on the cable for easier installation.
6. Clamp the hoses to the shifting cable and the ac-
cessory hose (autopilot/rudder indicator).
Clamp the hydraulic hoses to the trim pump.
IMPORTANT! The ends of the hoses must al-
ways be clamped and must be well above the
maximum waterline, to prevent water from en-
tering into the boat.
7. Bend up the shift cable and clamp it to the inside of
the transom.
NOTE! Minimum bending radius for the cable:
200 mm (8").
If the radius is smaller, the control will be stiff to oper-
ate and there is a risk that it will lock up.
3. With the transom shield in place, install the six
rectangular washers on the studs and then the nuts.
Tighten the nuts evenly.
Tightening torque: 80 Nm (57.8 lbf.ft).
80 Nm (57.8 lbf.ft)
Transom Aquamatic
31
3. Install the washer (1) and the shift cable with clamp
(2) and screws along the underside of the gear shift
actuator.
NOTE! It is possible to install the control cable on ei-
ther side of the gear shift actuator. This is to facilitate
installation of the gear shift actuator in the boat. Pin
must however always be installed downwards.
Installing gear shift actuator
and gear shift cable
1. Install the actuator in a position such that the gear
shift cable (push-pull cable) can be installed and
clamped correctly.
NOTE! Minimum bending radius for the cable: 200
mm (8").
2. Install the actuator using four suitable screws.
NOTE! The shift cable pin (1) must always point
downwards. Adjust its position and cover the upper
slot with the self adhesive protective sticker (2).
1
2
4. Screw the threaded section of s

Source: manual:7746265 Installation Manual D4D6 IPS Aqua Inboard.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.