Timing belt-CAM locking tool

Good morning.

There are two tools required for this procedure. I attached them in this post. The procedure is below.

Since this is an interference engine, moving the cams and crank is critical to not move it. If you have to, move the crank gear about 90 degrees then no piston is at top dead center. Then you can move the cams into position.

Roy

Replacing the timing belt

Special tools:
999 5433 COUNTERHOLD See: Vehicle > Electrical / Mechanical Repair > 999 5433 Counterhold
999 5456 COMPRESSION TOOL See: Vehicle > Electrical / Mechanical Repair > 999 5456 Compression Tool

Removing the timing belt

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information in the illustrations is always correct.

Preparation

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Caution! Remove the ignition key.

Remove
- the screw holding the engine stabilizer brace to the bracket on the engine
- the screws holding the engine stabilizer brace to the suspension turrets
- the engine stabilizer brace.

Applies only to B6xx4T engines:
Remove the plastic pipes between the turbocharger (TC) and charge air cooler (CAC) and between the air cleaner (ACL) and turbocharger (TC). Put them to one side.
Remove the clamp from the intake manifold for the turbocharger (TC) for cylinders 1, 2 and 3. Turn the upper section of the pipe towards the firewall.

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Relieve the load from the belt tensioner. Remove the auxiliaries belt.
Remove the upper timing belt cover.
Remove the front timing belt cover.
For cars with chassis numbers 203779-, see Timing cover front, replacing See: Timing Cover > Removal and Replacement > Timing Cover Front, Replacing.
Lift up the servo reservoir and place it on top of the engine.

Note! Ensure that the oil does not leak from the ventilation hole in the filler cap.

Seal the hose between the expansion tank and the radiator. Disconnect the hose at the tank.
Lift up the expansion tank and place it on top of engine.

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Raise the car.

Remove
- the right front wheel
- the plastic nuts on the cover in the fender liner.

Install the upper timing belt cover.
Turn the crankshaft clockwise until the markings on the crankshaft and camshaft pulleys correspond.
Turn the crankshaft a further 1/4 turn clockwise.
Then turn back counter-clockwise until the markings correspond.
Remove the upper timing belt cover.

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Remove the 4 vibration damper screws. Counterhold the crankshaft central nut.

Remove
- the vibration damper
- the auxiliaries belt
- the belt cover behind the crankshaft pulley for the auxiliaries belt.

Spray universal oil or similar around the rubber sleeve on the underside of the oil pump.
Remove the rubber sleeve.

Removing the timing belt

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Slacken off the belt tensioner
Slacken off the center screw for the belt tensioner slightly.
Hold the center screw still. Turn the tensioner eccentric counter-clockwise using a 6 mm Allen key. Turn to 10 o'clock.
Unhook and remove the timing belt.

Caution! Do not turn the camshafts or the crankshaft when the timing belt has been removed.

Checking the tensioner pulley and idler pulley

Check bearing wear:
Spin the idler pulley and listen for noise. If replacing with a new idler pulley, tighten to 24 Nm.
Spin the tension pulley and listen for noise. When replacing, screw the tension pulley into place using the center screw.
Screw in the center screw by hand.
Ensure that the tensioner fork is centered over the cylinder block rib / bracket.
Ensure that the Allen hole on the eccentric is at "10 o'clock".

My answer came from Alldata, not another website.

I understood just fine your question. I responded to 1B already in my answer

As far as turning the cams, yes, as I stated before move the crank off top dead center then move the cams.

Glad to hear it is done.

Roy

No worries. We are all good.

Roy