With engine installed, cylinder head removed: Notes
WARNING: This page is about a different variant/trim than selected.
- Using mounting bolt for vibration damper, align crankshaft with mark for TDC cyl. 1 - arrow -.
If cylinder 1 is correctly at TDC position, it will be possible to see a slot - arrow - on intermediate shaft sprockets.
If the slot is not visible:
- Turn crankshaft one turn in direction of rotation of engine.
NOTE:
- If the crankshaft is turned with the cylinder head removed, a second mechanic must guide the camshaft roller chain by hand to prevent blocking.
- Set both camshafts to TDC of cyl. 1.
- Align camshafts with camshaft guide 3268.
- Prepare cylinder head gasket for assembly Preparing cylinder head gasket for installation under Cylinder head, removal and installation overview .
- Install cylinder head, refer to Cylinder head, removing and installing .
- Push sliding rail onto bearing bolt. Insert short mounting bolt with locking compound D 000 600 and tighten both bolts to 20 Nm.
- Mount camshaft sprocket with camshaft roller chain to camshaft for cylinder bank 1, 3 and 5 (long camshaft) and turn in opposite direction by hand.
- Mount camshaft sprocket (with pickup wheel for Hall generator) and camshaft roller chain to camshaft for cylinder bank 2, 4 and 6 and turn in opposite direction by hand.
NOTE:
- Coat contact surfaces of the bolt heads with oil when installing.
- Remove camshaft guide 3268.
- Tighten mounting bolts for camshaft sprockets to 100 Nm.
NOTE:
- Hold camshaft - arrow - only with open-end wrench SW 24. The camshaft guide 3268 must not be inserted when tightening or loosening the sprockets.
- Coat sealing surface of sealing flange with AMV 188 001 02 .
- Coat O-ring for oil passage seal and insert in cover piece.
- Install cover piece, insert all mounting bolts and turn in opposite direction slightly.
- Initially tighten 8 mm mounting bolts to 25 Nm, then tighten 6 mm mounting bolts to 10 Nm.
- Install chain tensioner for camshaft roller chain and tighten to 40 Nm.
NOTE:
- Rotate engine only with chain tensioner installed. Otherwise, the camshaft roller chain will skip.
- Rotate crankshaft twice in engine travel direction and check timing, refer to Valve timing, checking .