Technical data

26
Repair instructions
2
Check that all water really runs out. There may be
blockages behind the tap/plug which must be cleared
out. There is otherwise a risk that the water could
remain and cause severe damage.
Check whether the installation has further taps or
plugs at the lowest points of the cooling water and
exhaust pipes.
3
Remove the lid of the sea water pump plus the lid of
any other pumps.
On the TAMD63, the hose between the heat
exchanger and the reverse gear oil cooler must also
be removed.
4
Shut the taps, install the plugs and the sea water
pump lid, plus any extra pumps.
5
Pump the bilges if necessary. Check that no leakage
occurs before you leave the boat.
Cleaning the cooling system
NOTE! Shut the sea cocks before doing any
work on the cooling system.
The coolant should be changed and the cooling
system should be flushed through at least once per
year to avoid loss of cooling performance because of
sludge in the cooling system.
A further reason for changing is to avoid the risk of
corrosion damage to the fresh water system because
the rust-prevention additives become used up in time.
When the coolant is changed, flush the system
carefully with fresh water. Flush until the water which
flows out of the drain openings is clean.
Filling coolant
Note! DO NOT open the pressure cap or ven-
tilation tap when the engine is hot. Steam or
hot coolant will spray out at the same time
as the built-up pressure will be lost.
Filling must be done with the engine stationary.
Filling must not be done so quickly that air pockets
are formed in the system. The air must be able to flow
out through the filling openings and ventilation taps.
When an empty system is filled or if the coolant level
has fallen so low for any reason that it is not visible in
the filling opening, the ventilation tap on the
turbocharger must be opened and the system
ventilated during filling.
The engine must not be started until the system is
vented and entirely filled.
If a heater unit is connected to the engine cooling
system, the heater control must be opened and the
system vented during filling.
1
Fill with coolant* until the level is about 50 mm below
the sealing plane of the filling cap, or to between the
MIN and MAX markings on the plastic expansion tap
(optional equipment).
Please refer to the “Coolant” heading on page 24 for
coolants.
The system should be topped up with the same
mixture as it already is filled with.
2
Alow the engine to stand for about 1 hour after filling.
Then top up with coolant as necessary, start and
warm the engine up. Check the coolant level.
* Note. Coolant volume for:
TAMD61, -62 30 litres
TAMD63 27 litres
TAMD71, -72 35 litres