11 12 106 Removing and installing right cylinder head (N62 to 9/03): Installation

WARNING: This page is about a different variant/trim than selected.

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: Installing Chain Tensioning Piston

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Coat joint between engine block and timing case cover with Drei Bond 1209.

Fig 2: Coating Joint Between Engine Block And Timing Case Cover With Drei Bond 1209

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

Fit new cylinder-head seal.

Fig 3: Checking Dowel Sleeves For Damage

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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: Inserting New Cylinder Head Bolts

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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: Inserting New 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 At Dihedral Head

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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.

Tightening torque, see ENGINE - TIGHTENING TORQUES .

Fig 7: Tightening Cylinder-Head Bolts

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

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

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Insert and tighten down guide rail screw.

Fig 9: Tightening Guide Rail Screw

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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 10: Attaching Spring To 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 11: Installing Pretension Torsion Spring With Cable Strap On Roller

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

Fig 12: Rotating Eccentric Shaft At Dihedral Head

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NOTE: Illustration with engine removed.

Install eccentric shaft sensor (2).

Fig 13: Installing Eccentric Shaft Sensor

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Tighten down chain tensioning piston (1).

Tightening torque, see ENGINE - TIGHTENING TORQUES .

Fig 14: Tightening Chain Tensioning Piston

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Install inlet and exhaust adjustment units on right side.

Assemble engine.