Technical data

30
Repair instructions
Heat exchanger/aftercooler,
cleaning or replacement
TAMD63
Note: On engines with hull cooling, there is no heat
exchanger.
Heat exchanger/aftercooler, removal
NOTE! Shut the sea cocks and drain the water in the
sea water and fresh water systems before doing any
work on the cooling system.
1
Remove both battery cables.
2
Undo the belt tensioner on the alternator and remove
the vee-belt.
Undo the alternator bracket and lift the alternator away
together with the bracket for the oil pressure sensor
and oil pressure monitor.
3
Remove the cable harness clamps beneath the heat
exchanger and aftercooler.
4
Remove the coolant hoses to and from the heat
exchanger and aftercooler.
5
Remove the ventilation pipe at the front of the heat
exchanger and the pressure hose for the smoke
limiter from the front edge of the inlet pipe on the
aftercooler.
Note. Mark up the hoses to ensure that they are
fitted in the correct places on re-assembly.
6
Remove the screw behind the heat exchanger.
7
Remove the 5 remaining screws which hold the heat
exchanger and lift it away from the engine.
8
Remove the air filter housing and the air supply pipe
to the turbocharger.
9
Remove the hose between the turbocharger and the
aftercooler.
10
Remove the pipe for the boost pressure sensor from
the inlet pipe on the aftercooler (optional equipment).
11
Remove all screws from the inlet pipe on the
aftercooler.
12
Loosen both the screws behind the aftercooler a few
turns and lift off the aftercooler with inlet pipe.
6