Renault Laguna III, Manual

Page: 1584 / 3699

19B
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18
EXHAUST
Exhaust: Precautions for the repair
19B
I - PARTS AND CONSUMABLES FOR THE REPAIR
1 - Parts always to be replaced:
- the exhaust sleeve (if fitted)
- the seal or sealing ring on the connection between the
catalytic converter or catalytic pre-converter and the
rest of the exhaust system
- the exhaust clip(s) (if fitted)
2 - Consumables (see Part number in Technical
Note 5068, 04B, Consumables - Products):
- exhaust mastic
- surface cleaner
- abrasive pads
II - ADVICE TO OBSERVE
1 - During removal and refitting, the catalytic converter
or catalytic pre-converter must not receive any knocks
or impacts as this could damage it.
2 - The whole exhaust pipe is made of stainless steel.
3 - After working on the bracket between the catalytic
converter or catalytic pre-converter and the rest of the
exhaust system, ensure that the connection is perfectly
sealed.
To do this:
- clean the pressure faces of the connection using the
ABRASIVE PADS ,
- degrease the pressure faces of the connection using
SURFACE CLEANER and clean cloths,
- always replace the seal or sealing ring on the connec-
tion.
III - SPECIAL NOTES ON THE SINGLE UNIT
EXHAUST PIPE
1 - Cutting the single unit exhaust pipe
The exhaust pipe is a « single unit type » .
To replace different parts of the exhaust system it must
be cut.
To do this be sure to carry out these precautions in the
following order:
- correctly identify the area to be cut, as explained be-
low,
- use the cutting tool correctly,
- position the exhaust sleeve correctly.
2 - Identifying the area of the exhaust system to be
cut
Two marks made on the exhaust system define the
area to be cut (see
Exhaust: Parts and consumables
for the repair ) (see MR for vehicle concerned, 19B,
Exhaust).
Example of cutting area
IMPORTANT
Do not park and run the engine in a place where
combustible substances and materials such as
grass or leaves can come into contact with the hot
exhaust system.
IMPORTANT
Catalytic converters contain ceramic fibres, these
are contained within a closed unit, and cannot dis-
perse. Drilling or cutting catalytic converters is pro-
hibited.
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