Remove
REMOVING CYLINDER HEAD
- Remove ignition coils.
Installation Note: Place paper gasket between valve cover and ignition coil (galvanic decoupling).
- Unscrew cylinder head cover.
NOTE: The cylinder head cover uses rubber mounts and gaskets for vibrational separation from the cylinder head. Check arrangement of rubber liners.
Installation Note: Check gaskets, replacing them if necessary. Place gaskets on cylinder head.
Installation Note: When mounting the cylinder head cover, check for correct seating of gasket on back of the cylinder head.
- Remove sender.
Installation Note: Check seal, replacing if necessary.
- Take off electric wiring channel.
- Unscrew suspension eye and upper timing case cover.
Installation Note: Replace gasket. Check dowel sleeves.
- Pull cover off.
- Crank engine in direction of rotation until cam peaks of intake and exhaust cams in cylinder no. 1 face each other.
- Arrows on sprockets face up.
- Hold crankshaft in TDC position with Special Tool 11 2 300.
CAUTION: Remove special tool before operating the engine.
- Unscrew chain tensioner.
Caution: Spring pressure.
Installation Note: Align groove in piston perpendicular to the tensioning rail. Replace gasket. Torque to 50 Nm (37 ft lb).
Arrangement of Parts:
1 - Sleeve
2 - Spring
3 - Piston
- Press upper chain tensioner down and arrest by inserting Special Tool 11 3 290.
- Unscrew sprockets.
- Lift both sprockets off complete with chain.
- Lift pulse sender off of the intake camshaft.
- Unscrew console for upper chain tensioner.
- Unscrew chain guide.
- Lift sprocket off together with chain.
CAUTION: Prevent chain from slipping down with a piece of wire.
Unscrewing Cylinder Head
- Unscrew timing case cover from cylinder head.
- Unscrew cylinder head bolts in several steps from outside to inside using Special Tool 11 2 250.
- Lift cylinder head off.
NOTE: Some of the washers are locked in the standard cylinder heads to prevent them from being lost.