11 31 032 Removing And Installing/Replacing Left Inlet Camshaft (N62 From 9/03): Installation

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Installation of inlet camshaft is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

NOTE: Camshaft has a groove and sensor gear has a lug for fastening purposes.

Fig 1: Identifying Camshaft Groove

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Fit sensor gear (1) and align to groove in camshaft.

Insert screw (2) and tighten down.

Tightening torque of screw (2), refer to 11 31 14AZ in ENGINE - TIGHTENING TORQUES .

Fig 2: Aligning Sensor Gear To Groove In Camshaft

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Installing compression rings (1):

IMPORTANT: Plain compression rings (1) can easily break.

Carefully pull compression ring (1) apart and install from front.

Press compression ring (1) on one side into groove, install catch on other side.

Fig 3: Installing Compression Rings

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Insert inlet camshaft (1) so that cams point upwards at cylinder 5 as shown in illustration.

Fig 4: Inserting Inlet Camshaft

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Make sure bearing shells (1) of eccentric shaft are engaged in bearing bracket.

NOTE: Bearing shell (1) is guided in a groove in bearing cap.

Fig 5: Identifying Bearing Shells Position

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

Fig 6: Locating Dowel Sleeves

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NOTE: Bearing caps are marked as illustrated with R E2 to R E5.

Fit bearing caps R E2 to R E5.

Fig 7: Installing Bearing Caps R E2 To R E5

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NOTE: Initially tighten special tool 11 9 473 without play only.

Secure bearing bracket and bearing cap with nut (special tool 11 9 473).

Fig 8: Installing Knurled Nut

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NOTE: The mounting of the bearing bracket described later can only be performed if the first bearing of the inlet camshaft is aligned with special tool 11 9 472.

Fit special tool 11 9 472 as shown in illustration and align inlet camshaft.

Fig 9: Aligning Inlet Camshaft

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Fit centering sleeves (special tool 11 9 475) and align special tool 11 9 472 to bearing caps 2 and 3.

Fig 10: Identifying Centering Sleeves

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Insert special tool 11 9 474 and initially tighten without play.

NOTE: Special tools 11 9 472 / 11 9 474 and 11 9 475 remain fitted until all torsion springs and intermediate levers have been installed.

Fig 11: Locating Guide Bushes And Retaining Screws

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NOTE: Installation of the intermediate levers and torsion springs is described on the 8th cylinder. The same procedure is applicable to cylinders 5 to 7.

Attach special tool 11 9 490 to ends of torsion spring.

Fig 12: Attaching Special Tool 11 9 490 To Ends Of Torsion Spring

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Install torsion spring (1).

Insert screw (1) and tighten down.

Fig 13: Installing Screw

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IMPORTANT: Intermediate levers (2) are divided into individual tolerance classes. Only intermediate levers of the same tolerance class may be fitted in a single engine. The tolerance classes are designated as illustrated with the numbers from 1 to 5. Used intermediate levers (2) may only be reused in the same position.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Fig 14: Identifying Intermediate Lever Tolerance Class Number

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Raise torsion spring (1) with special tool 11 9 480.

Detach special tool 11 9 490.

Fig 15: Detaching Holder Sleeve

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Hold torsion spring (1) with special tool 11 9 480.

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Fig 16: Holding Torsion Spring With Lever

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Raise second end of torsion spring with special tool 11 9 480.

Detach special tool 11 9 490.

Fig 17: Removing Holder Sleeve

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Hold torsion spring (1) with special tool 11 9 480.

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Fig 18: Installing Intermediate Lever

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Install eccentric shaft sensor (2).

Insert screws and tighten down eccentric shaft sensor (2).

Fig 19: Identifying Eccentric Shaft Sensor And Retaining Screws

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Remove special tool 11 9 474.

Fig 20: Removing Special Tool 11 9 474

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Remove special tool 11 9 472 and special tool 11 9 475.

Fig 21: Removing Special Tool 11 9 472 And Special Tool 11 9 475

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Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Fig 22: Identifying Ends Of Compression Rings

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IMPORTANT: Rocker arms (1) slip slightly when bearing bracket is fitted. Make sure rocker arms (1) are secured as illustrated on hydraulic valve clearance compensating elements and on valves.

Align rocker arms (1) straight.

Fig 23: Identifying Rocker Arms