Installing The Sterndrive; Models 280 And 285 - Volvo Penta AQUAMATIC 280 Workshop Manual

There are 2 types of exhaust bellows. One type with
an exhaust valve and one without. The exhaust bel-
lows with an exhaust valve installed should be used
on sterndrives not having a rubber exhaust flap in-
stalled on the exhaust outlet in the cavitation plate.
Otherwise exhaust bellows without exhaust valve
should be installed.
IMPORTANT! When using an exhaust bellows
with built-in flaps, make sure that the flaps are
opening/closing horizontally. Furthermore
check that the bellows is installed with the
drainage hole pointing downwards.
1. Install new rubber bellows for the through-hull ex-
haust (1) and the universal joint (2). Use special tool
884936. Connect the cooling water hose (3) between
the transom shield and the sterndrive.
NOTE! The cooling water hose is marked 'engine' at
the end to be connected to the transom shield.
Check to make sure that the hose clamps are well
tightened to avoid water leaking into the boat. Use
the flexible screwdriver 884573 to tighten the clamps.

Installing the sterndrive

Models 280 and 285

2. Check to make sure that the hole in the suspension
yoke for the push rod is chamfered. The chamfer
should be 1 mm × 45° (0.004" × 45°) to prevent the
thrust washer of the lifting device to deform the edg-
es of the hole when tilting the sterndrive. In case the
thrust rod is jamming in the hole, the sterndrive will
kick up when put in reverse. Should this happen,
push down the push rod and adjust the chamfer.
3. Put the sterndrive in front of the transom shield.
Block it from underneath to align it heightwise with the
transom shield. As an alternative the special tool
884521 can be used. Insert the shift cable (1) in the
sterndrive.
Repair instructions
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