Volvo Penta Aquamatic 250A, Руководство по ремонту

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3. To obtain a clearance of 0.05 mm (0.002") between
the intermediate housing and the gear housing, the ax-
ial bearing must project 8.0 mm (0.315") above the
gear housing since the bearing seat in the intermedi-
ate housing is 7.95 mm (0.312"). The measurement
obtained in point 2 is the thickness of the shims,
which should lie between the bearings. Example: Di-
mension “A” is measured to 12.37 mm (0.4870") and
the bearing width to 18.25 mm (0.7185"). Thus 18.25 –
12.37= 5.88 mm (0.7185 – 0.4870 = 0.2315"). Since
the bearing is to project 8.00 mm (0.315") above the
housing, the result will be 8.00 – 5.88 = 2.12 mm
(0.315 – 0.2315 = 0.0835"). In this case shims with a
thickness of 2.10 mm (0.827") are fitted under the axi-
al bearing.
4. Remove the nut (22) and release the drive shaft
and drive with press tool 884267 and sleeve 884264.
Fit the measured shims (42), the bearing (18), the
spacer washer (19), the lock washer (20) and the nut
(21) on the vertical drive shaft. Tighten the nut and
1. Fit the rubber bellows (18, 62) for the exhaust out-
let, the universal joint and the cooling water hose (43)
on the connections in the mounting collar.
NOTE: The cooling water hose is marked with the
word “Engine” on the end to be fitted on the mounting
collar.
2. Lift the outboard drive over to the mounting collar
and block it up under the fin so that it comes up to the
right height.
3. Hang the hose clip (64) for the universal joint rub-
ber bellows on the gear housing neck. Smear the uni-
versal joint and shaft splines with VP waterproof
grease part number 828250-1. Move the gear towards
the drive shaft while turning the universal joint at the
same time so that the splines on the drive shaft can
engage with the splines on the universal joint.
NOTE: Be careful when fitting so that there is no burr
on the splines, which would make assembly difficult.
lock with the lock washer. Mount the vertical drive
shaft and its drive together with the nut and lock
washer in the gear housing. In order for the shaft to
obtain correct location, place the drive first in the
housing. Tighten the nut (22) on the vertical drive
shaft to a torque of 160 Nm (115 lb.ft.) and then lock
the nut with the lock washer (23).
5. Place both the O-rings (33) on the propeller shaft
bearing housing and fit the bearing housing with the
shaft in the lower gear housing. Secure the housing
with the two recessed hex screws. Coat the contact
surfaces and screws with VP sealing compound
1141570-0.
6. Press the axial bearing outer race into the interme-
diate housing.
7. Fit the oil drain plug in the gear housing.
NOTE: Do not forget the washer.
8. Fit a new zinc ring. Make sure that there is good
metallic contact between the zinc ring and the propel-
ler bearing housing.
Part VI Assembling the outboard drive unit
1. Fit the oil strainer in the oil channel on the lower
gear housing. Outboard drives not fitted with an oil
strainer can with advantage be provided with one. Fit
the lower gear housing on the intermediate housing.
Use three new O-rings (25, 33, 48) and apply VP seal-
ing compound 1141570-0 to the contact surfaces.
Tighten the bolts all round, in diagonally opposite se-
quence.
2. Measure the distance on the upper gear housing
from the outer bearing race on the lower bearing (9) to
the gear housing surface.
3. Determine the depth of the corresponding recess
for the bearing race in the intermediate housing and
add to the measurement under point 2 so many shims
(9) that the depth measurement in the intermediate
housing is exceeded by 0.1 mm (0.004").
4. Fit the splined sleeve (49) on the vertical drive
shaft and the two O-rings (7, 38) and the shims on the
intermediate housing. Apply VP sealing compound
1141570-0 to the contact surfaces. Fit the upper gear
housing on the intermediate housing. Tighten the bolts
all round, in diagonally opposite sequence.
Part VII Fitting the outboard drive on the transom
Lubricate the shaft pins with waterproof grease
828250-1.
4. Move the outboard drive mounting yoke (10) into the
mounting collar and line it up so that the shaft pins (27)
can be pushed into the holes in the yoke.
NOTE: Do not forget to fit the two plastic bushes (42) in
the yoke holes. Turn the pins so that the locking bolts
can be fitted. Tighten the locking bolts securely.
5. Fit the rubber bellows on the universal joint. Locate the
clip so that its tightening screw is on the underside of the
bellows. Make sure that the bellows are correctly fitted
and that both the clips are tightened to prevent leakage.
6. Hang on the hose clips (19, 44) for the exhaust and
cooling water hoses. Connect up the hoses and tighten
the hose clips. The tightening screws should be placed
on the side of the hose. Concerning the exhaust hose,
the hose clips should be turned as shown in Fig. 28 and
Fig. 29.