12B-5
TURBOCHARGING
Turbocharging: Precautions for repair
12B
3 - List of instructions
- Drain the engine oil (see 10A, Engine and cylinder
block assembly, Engine oil: Draining - Refilling,
page 10A-40) .
- Replace the oil filter (see 10A, Engine and cylinder
block assembly, Oil filter: Removal - Refitting,
page 10A-48) .
- Replace the seals and fittings,
- Carry out the following only if the compressor wheel is
broken or rubbing against the turbocharger casing:
• Drain the intercooler,
• Clean the turbocharger air pipes.
IV - AIR CIRCUIT*: INSTRUCTIONS FOLLOWING
MECHANICAL DAMAGE TO THE TURBOCHARGER
Remove the intercooler if fitted to the vehicle (see 12B,
Turbocharging, Intercooler: Removal - Refitting,
page 12B-37) .
Turn the intercooler over and allow the oil inside to
drain out.
Check that there are no metal objects inside the flow-
meter (2) .
Remove:
- the air pipe (A) (between the air filter unit and the tur-
bocharger),
-the air pipe (B) (between the turbocharger and the in-
tercooler).
Note:
When carrying out an operation on the air or lubri-
cation circuit, it is necessary to plug the open
holes to prevent any risk of foreign bodies entering
the system.
Note:
(*) These instructions for the air circuit are only to
be followed in the case of:
- broken compressor wheel,
- or compressor wheel rubbing against the turbo-
charger casing.
110738
Note:
If the compressor wheel (9) is damaged, metal
objects have been projected inside the air pipes.
112772
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