11 12 106 Removing And Installing Right Cylinder Head (N62 To 9/03): Installation

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Installation of cylinder head is described separately from removal.

Clean sealing faces of cylinder head and crankcase; if necessary, remove gasket debris with wooden scraper. Make sure no gasket debris drops into the oil and coolant ducts.

Threaded bores in engine block must be free of dirt and oil (risk of cracking).

Replace sealing ring.

Install chain tensioning piston (1) and initially tighten screw connection without play.

Fig 1: Identifying Chain Tensioning Piston

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Coat joint between engine block and timing case cover with Drei Bond 1209 (refer to BMW Parts Service).

Fig 2: Identifying Joint Between Engine Block And Timing Case Cover

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Check dowel sleeves (1) for damage and correct installation position.

Fit new cylinder-head seal.

Fig 3: Identifying Dowel Sleeves

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Put the cylinder head on.

NOTE: Cylinder head bolt (7) cannot be inserted yet.

Do not wash off bolt coating. Insert new cylinder head bolts and initially tighten so that they are free of play.

Fig 4: Right Cylinder Head Bolts Tightening/Loosening Sequence

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Rotate eccentric shaft at dihedral head as shown in illustration and hold in this position.

Insert cylinder head bolt (7).

Fig 5: Identifying Cylinder Head Bolt

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Rotate eccentric shaft at dihedral head as shown in illustration back to minimum stroke position.

Fig 6: Rotating Eccentric Shaft

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NOTE: At narrow points, use a socket with 3/8" drive and a short extension.

Tighten down the cylinder-head bolts in order 1... 10. See Fig 7.

Tightening torque. See ENGINE - TIGHTENING TORQUES -- ALPINA .

Fig 7: Right Cylinder Head Bolts Tightening/Loosening Sequence

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Insert and tighten down screws between cylinder head and timing case cover.

Fig 8: Identifying Screws Between Cylinder Head And Timing Case Cover

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Insert and tighten down guide rail screw.

Fig 9: Identifying Guide Rail Screw

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Replacement:

Open plug (1).

Fig 10: Identifying Screw Plug

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Grip at dihedron and release screw (1).

Convert lever (2) with roller.

IMPORTANT: Levers (2) with rollers of cylinders 1 to 4 and 5 to 8 are different and must not be mixed up.

Fig 11: Identifying Convert Lever With Roller

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NOTE: Spring mount (1) has a locating pin opposite screw.

Attach spring to spring mount (1).

Insert locating pin of spring mount (1) into locating bore in cylinder head.

Install screw and tighten down.

Fig 12: Identifying Spring Mount

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Rotate eccentric shaft at dihedral head as illustrated in order to reduce tension on torsion spring (1).

Pretension torsion spring (1) with a cable strap (2) and carefully fit on roller (3).

Fig 13: Identifying Pretension Torsion Spring With Cable Strap

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Rotate eccentric shaft at dihedral head as shown in illustration back to minimum stroke position.

Fig 14: Rotating Eccentric Shaft

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NOTE: Illustration with engine removed.

Install eccentric shaft sensor (2).

Fig 15: Identifying Eccentric Shaft Sensor

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Tighten down chain tensioning piston (1).

Tightening torque. See ENGINE - TIGHTENING TORQUES -- ALPINA .

Fig 16: Identifying Chain Tensioning Piston

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Install inlet and exhaust adjustment units on right side. See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Assemble engine.