Timing belt for gas distribution mechanism drive (Renault Espace III)

Removal

When removing the timing belt, you must use the following special tools:

• belt tension tester Mot 1273;
• centering fork of pendulum suspension travel limiter Mot. 1289-02;
• top Dead Center (TDC) Locking Meter Mot. 1318;
• tension roller deflection lever Mot. 1370;
• key for tightening the adjusting roller Mot. 1368;
• lever for deflecting the eccentric adjusting roller Mot. 1369;
• tension roller lock Mot. 1376;
• ball joint puller T. Av. 476.

Disconnect the cable from the negative battery terminal.

Use the charging station to discharge the refrigerant from the air conditioning system circuit.













Remove:

• right front wheel;
• protective shields under the engine;
• protective liner of the front right wheel arch;
• jet thrust;
• the intake pipe of the exhaust gas system.

On the left side of the car

• Remove the drive shaft by first removing:

- the front right floating bracket of the brake caliper and to protect the brake hose from damage, secure it to the suspension spring;



- unscrew the two bolts securing the intermediate support of the drive shaft in the support bearing;

- using the T.Av. 476 puller, the steering rod end;

- unscrew the lower shock absorber strut mounting bolts;

- wheel speed sensor

• Loosen the lower ball joint end mounting nut as much as possible and use a ball joint impact puller to (for example, FACOM D98) press the tip out of the steering knuckle.
• Remove the drive shaft - steering knuckle - brake disc assembly. Do not damage the drive shaft corrugated boots.
• Support the engine oil pan with a wooden support.
• Remove 4 bolts and remove the right swingarm bracket and its support.
• Carefully remove the pendulum suspension.
• Using NAUDER tool #7240 and 7242, disconnect the quick-release connections of the air conditioning system hoses on the mudguard.
• Remove the fine fuel filter bracket with the booster pump.
• Remove the accessory drive belt.
• Remove the accessory drive belt pulley from the crankshaft.
• Remove the timing belt covers.

Note: When performing operations on the timing drive, it is recommended to raise or lower the engine relative to the vehicle, taking the following as travel limits:

• - upwards: touching the oil filler cap to the front shield;
• down: maximum 70 mm stroke.

• Turn the crankshaft until the mark on the crankshaft pulley (C, Fig. 3.31) will not be pointing downwards and the mark (D) on the camshaft pulley will be on the left at an angle of approximately 45° (the internal mark A on the camshaft pulley must be opposite the mark on the cylinder head cover) and the mark (I) of the fuel injection pump pulley is opposite the mark on the fuel injection pump casing.

• Using tool Mot. 1318 or a 7 mm diameter rod, lock the crankshaft by inserting the tool into the hole closed with a plug and located on the cylinder block between the flywheel and the oil filter.
• Remove the nut (B) and screw (E) and loosen the timing belt.
• Remove the timing belt.

Installing the timing belt and valve timing

• Visually inspect the condition of the timing belt and replace it if there are traces of oil or coolant, cracks, missing or worn teeth.
• Make sure that the tensioner pulley rotates easily and smoothly, without jamming, otherwise, replace it. To replace the pulley, lift the engine with a lifting mechanism and completely unscrew the center nut securing the pulley.
• Make sure the TDC locking tool Mot 1318 is in place. Align all timing marks.
• Install the timing belt, aligning the marks on the pulleys and belt.

Note.

• The following belt tension adjustment procedure must be strictly followed.
• Do not turn the engine crankshaft in the direction opposite to the operating direction.

• The belt tension is adjusted using the adjusting bolt (E, Fig. 3.31).
• Rotating the bolt (E. Fig. 3.31) tighten the timing belt, while the bracket-mark (H, Fig. 3.33) tension roller should be aligned with the stop (F) and, without applying much force, tighten the lock nut of the adjusting screw.

• Remove the TDC locking tool and rotate the crankshaft 3 full turns clockwise until the piston of the 1st cylinder is set to the TDC position. Re-insert the TDC locking tool
• Loosen the lock nut of the adjusting bolt, then gradually bring the tension roller to the nominal position when the dash mark (G. Fig. 3.33) passes through the center of the bracket-mark (H).
• Tighten the tensioner roller mounting nut to the specified torque.
• Holding the adjusting bolt (E, Fig. 3.31) from turning, tighten the lock nut (B).
• Remove the crankshaft locking device and close the opening in the cylinder block with a plug.
• Install the timing belt cover.
• Clean the bearing surface of the crankshaft pulley.
• Apply 2 drops of LOCTITE AUTOFORM locking agent to the bearing surface of the crankshaft pulley and install the accessory belt pulley onto the crankshaft.
• Be sure to replace the crankshaft pulley bolt with a new one and tighten it to a torque of 25 N·m, then turn it further by an angle of 64±6°.
• Install the accessory drive belt.
• On vehicles with air conditioning, install the upper accessory drive belt cover.
• Install the fuel filter and booster pump bracket. At the same time, replace the copper seals of the pipe connections
• On vehicles with air conditioning, use Nauder 7240 and 7242 to connect the quick-release pipe fittings.
• Fit the engine pendulum mount bracket and use tool Mot. 1289-02 to centre the suspension travel limiter.
• Remove the jack that was supporting the engine.
• Install the exhaust pipe.
• Install the jet thrust;
• Install the plastic mudguard over the engine and right front wheel.
• Install the right front wheel
• Connect the cable to the negative terminal of the battery
• Lower the car.