Technical data

13
Repair instructions
Turbocharger, removal
A vital requirement for satisfactory operation of the
turbocharger unit is that the lubrication system of the
engine is kept in good repair and the correct grade of
oil is used (please refer to the workshop manual,
“Technical data”, page 15).
Please consider changing the engine oil and
lubrication oil filter before the turbocharger is removed,
so that the engine can be run for a few minutes with
the new oil.
1
Clean the area round the turbocharger.
2
Drain some of the coolant from the fresh water
system and remove the coolant pipes to and from the
turbocharger.
3
Undo the exhaust pipe by the outlet from the
turbocharger.
4
Remove the air filter.
5
Only applies to the TAMD61, -62, -71
Remove the connection pipe between the turbocharger
and the by-pass valve. Remove the lubrication oil pipe
to and from the turbocharger.
6
Does not apply to the TAMD61, -62, -71
Remove the connection pipe between the
turbocompressor and the induction manifold.
7
Bend up the lock tab and remove the turbocharger
from the exhaust manifold.
Turbocharger, installation
NOTE! Always find out the reason for turbine
replacement when it is changed. Then attend to the
reasons for the failure before installing the new
turbocharger.
For satisfactory operation of the turbocharger unit, the
lubrication and induction systems of the engine must
be kept in good repair. I.e. engine oil, lubrication oil
filters and air filter must be replaced at the specified
change intervals in the instruction manual, and the
correct grade of oil must be used.
1
Change the engine oil and the engine lubrication oil
filter when the turbocharger is changed.
Use the correct grade of oil, please refer to “Technical
Data” on page 15 of the workshop manual.
Be careful to observe the change intervals for the oil
and the lubrication oil filters.
Replacements must be done as advised in the
instruction manual to guarantee that the engine is kept
clean.
Clean the turbocharger oil supply and oil return pipes.
Bearing failure in turbochargers is almost always
caused by sludge deposits in the engine lubrication
system.
Sludge formation can be found by lifting one of the
valve covers on the engine.
If there are any sludge deposits, the entire lubrication
system must be carefully cleaned before a new or
renovated turbocharger is installed.
2
Clean any loose soot, carbon or metal particles from
the exhaust manifold and install the turbocharger on
the engine.
Note: To facilitate spare part handling, turbochargers
are only stocked in some cases with a single angle
between the compressor outlet and the exhaust flange
of the turbine housing.
This means that the mutual angle may need to be
adjusted to fit the turbocharger to the engine.
Compare it with the turbocharger previously installed
on the engine.