2000 RENAULT ESPACE Technical Note 3426A Workshop Manual

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Timing belt
11
11 - 3
Insert the mounting tool Mot. 1390 under the engine
and transmission assembly, positioning the right-hand
pads only underneath the engine. Lower the two
unused left-hand pads.
Remove the right-hand suspended engine mounting
cover.Remove the timing belt cover and the lower plastic
cover.
Check the position of the camshaft grooves as shown
below.
15394M2
17533M1
15850-6M1
17942R

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Timing belt
11
11 - 4
Fit the camshaft locking tools and tighten them
carefully to the cylinder head.
Release the tension in the timing belt by undoing the
timing tension wheel bolt.Remove:
–the exhaust camshaft sprocket by undoing the three
mounting bolts on the sprocket on the hub),
–the timing belt.
Remove tool Mot. 1537.
Remove the gear tensioner.
17943M1
15850M1
17553-2M

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Timing belt
11
11 - 5
–the pulley; remove the nut and take the pulley out
without removing the stud.
REFITTING
Fit:
–the pulley,
–the automatic tension wheel without tightening it and
position the groove (7) of the tension wheel correctly
in the pin,
–the three bolts at the centre of the inlet camshaft
sprocket holes (this must be free),
–the exhaust camshaft timing tool Mot. 1537.
Check that the crankshaft is at top dead centre.
Fit the timing belt at the same time as the exhaust
camshaft sprocket, and position the sprocket mounting
bolts at the centre of the holes.
Operation of the exhaust camshaft timing/locking tool
repeater: mobile mark (1) on the tension wheel pushes
the repeater (2) to the lower section (3). The upper
section has two edges (4) and (5) which, repeat the
position of the tension wheel index by aligning with the
edge (6) of the fixed section of the tool.Adjust the position of the tension wheel (by pivoting
the tension wheel eccentric anticlockwise) plus
approximately 5˚ by aligning sections (5) and (6).
16026M
17551M

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Timing belt
11
11 - 6
Tighten:
–the tension wheel bolt (8),
–the camshaft timing sprocket bolts (9) to a torque of
1 daN.m.
Remove the camshaft timing tools Mot. 1534 and
Mot. 1537 and the TDC pin Mot. 1536.
Rotate the crankshaft through two revolutions in a
clockwise direction (timing side).
Pin the crankshaft to top dead centre (the top dead
centre mark on the crankshaft accessories pulley must
be in the vertical axis of the engine).
Fit the camshaft timing tools Mot. 1534 and
Mot. 1537.
Check that the tab of Mot. 1537 moves vertically
without constraint.
Undo the camshaft timing sprocket bolts by a
maximum of one turn. Checking the timing and the tension
Undo the tension wheel bolt (8) while holding the
eccentric with a 6 mm Allen key.
Pivot the tension wheel eccentric clockwise, until the
surface (10) of the tab (11) is aligned with the
upper surface (12) of tool 1537.

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Timing belt
11
11 - 7
Tighten:
–bolt (8) of the tension wheel to a torque of 2.5 daN.m,
–the camshaft timing sprocket bolts (9) to a torque of
1 daN.m.Remove the camshaft timing tools Mot. 1534 and
Mot. 1537 and the TDC pin Mot. 1536.
Refit the cap in the TDC pin opening applying
RHODORSEAL 5661 to the thread and by tightening
to a torque of 2.2 daN.m.
Refitting is the reverse of removal.
To refit the right-hand suspended mounting, you must
consult section 19 "Suspended mountings".
17553M4
15854M

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Cylinder head gasket
11
11 - 8
Cylinder head gasket
Consult manual Mot. G9 for the details of this
operation.You must remove the engine and transmission
assembly to remove the cylinder head

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Turbocharger
12
112TURBOCHARGING
Turbocharger
THE TURBOCHARGING PRESSURE ON THE
TURBOCHARGER FITTED ON THE G9T 710
ENGINE IS NOT ADJUSTABLE.
In operation, the pressure should stabilise at
210 ± 3.5 mbar.
REMOVAL
Removal or refitting of the turbocharger requires the
removal of the engine and transmission assembly.TIGHTENING TORQUES (in daN.m)
Turbocharger mounting nuts 2.6
Oil inlet union bolt 2
Oil return union bolt 0.9
Turbo mounting nut on the intermediate
exhaust downpipe 2.6
12-1

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Turbocharger
12
12-2
IMPORTANT: Never attempt to remove the
turbocharger with the engine in place; you will not be
able to follow the recommendations for refitting the oil
supply pipe (1) and the constraints created by blind
tightening the connection (3) will lead to the pipe (1)
rupturing in service.
Fit:
–the pipe (1) to the turbocharger by tightening the
union (3) by hand,
–the turbocharger, by holding the union (4) and
tightening it manually. Tighten the turbocharger
mountings on the manifold to a torque of 2.7 daN.m.
Tighten the unions (4), then (3).
IMPORTANT: It is essential to change the special seal
at the turbocharger oil inlet union (3).
Before running the engine, disconnect the pressure
rail sensor connector (5).
Then run the starter motor until the oil pressure
warning light goes out (persist for a few seconds).
Reconnect the sensor, preheat and start the engine.Run the engine at idling speed and check that there
are no leaks at the oil connections.
Using the fault finding tool, erase the fault as a result
of the sensor being disconnected.
Special precautions
●Ensure that no foreign bodies enter the turbine or
compressor during the refitting operation.
●If there has been a fault in the turbocharger, check
that the air-air exchanger is not full of oil.
If the air-air exchanger is full of oil, it must be
removed, flushed with a cleaning agent and then
left to drain properly.
●Check that the turbocharger oil return pipe is not
partially or completely blocked by scale. Check
also that it is perfectly tight. If not, replace it.