Renault Clio: Rigid brake pipe: Repair
This procedure applies to copper pipes diameter 4.7
mm.
Note:
This procedure does not apply to:
- hybrid pipes (pipe + hose),
- pipes with diameters 6 mm and 8 mm.
REPAIR
I - PIPE PREPARATION OPERATION
WARNING
To avoid causing a breakdown in hydraulic brake
circuit, do not squash or bend the rigid pipe
when cutting.
- Cut the pipe to the recommended length using a
tube cutter (see Garage equipment catalogue).
- Put the nuts or bolts on the pipe before forming the
rivets.
II - MAKING THE RIVETS
Note:
To make the rivets, fit the rivet press in a vice.
- Fit the pipe in the rivet press (see Garage Equipment
Catalogue).
- Adjust the length of the pipe to be shaped.
- Torque tighten the press end piece(40 N.m).
III - CHECKING THE RIVETS
- Visually inspect:
- the uniformity of the rivets' diameter,
- the rivet centring in relation to the pipe shaft.
- Visually check that the internal diameter of the pipe
is not oval-shaped.
IV - PREPARATION OF THE PIPE BEFORE
BENDING
Note:
Impurities may spread inside the pipe while the
rivets are being made.
- Blow inside the pipe in both directions using a compressed
air nozzle.
- Put plugs on the bolts or nuts at the ends of the pipe.
- Put the original pipe on a flat base plate that is the
length of the pipe.
- Measure the dimensions (X3) (in mm) curve after
curve, between each curve radius " centre " (1) of
the old pipe.
WARNING
To avoid weakening the pipe, either bend once or
bend progressively by increasing the bend (that
is, by continually decreasing the curve radius).
Do not install a rigid pipe on a vehicle that may
have been bended and then unbended alternatively
to reach the correct curve radius.
Note:
During the bending operation, the required angle
should be passed slightly in order to compensate
for material elasticity.
- Shape the pipe using a bender, curve after curve,
while respecting the original shape of the pipe.
V - CHECKING BENDING
- Check the out-of-roundness of the outer diameter at
the centre of the curve radius (2) using a sliding calliper
(the out-of-roundness of the outer diameter is
correct if it is less than 10% flattening):
- nominal diameter of the pipe: 4.75 mm,
- minimum diameter after bending: 4.30 mm.
VI - REFITTING THE PIPE
Note:
When refitting the rigid brake pipe:
- respect the original routing as much as possible,
- adjust the pipe routing by hand when fitting
inside the clips.
WARNING
Contact points between the rigid brake pipe and
the surrounding components could cause damage
to the pipe. In order to avoid these contacts,
adjust the pipe routing by hand.
- Torque tighten the brake pipe bolts (8 N.m).
- Torque tighten the underbody unions (female/
male) (6 N.m).
READ NEXT:
EQUIPMENT LEVEL E3 LEISURE or EQUIPMENT LEVEL EA1 or EQUIPMENT LEVEL EA2
or EQUIPMENT
LEVEL EA3 or EQUIPMENT LEVEL EA4 or EQUIPMENT LEVEL EA5 or EQUIPMENT LEVEL EAG
When replacing brake pads, be sur
IMPORTANT
Consult the safety and cleanliness advice and operation
recommendations before carrying out any repair (see Front axle components:
Precautions for the repair).
WARNING
Prepare for the flo
SEE MORE:
IMPORTANT
To avoid all risk of damage to the systems, apply
the safety and cleanliness instructions and operation
recommendations before carrying out any
repair (see 30A, General information, Brake circuit:
Precautions for the repair, 30A-2).
This procedure must be applied after one of the followin
D4F or F4R or K4J or K4M or K9K or M4R
IMPORTANT
During this operation, be sure to:
be careful of fuel splashes when disconnecting the
union.
IMPORTANT
Wear goggles with side protectors for this operation.
IMPORTANT
Wear latex gloves during the operation.
WARNING
To prevent impurities from ente
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