11 21 500 Replacing crankshaft (S65)

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Unscrew all M9 fit bolts first before releasing the crankshaft lower section.
Altered settling behavior at the crankcase!
If the main bearing channel is opened after engine operation, all main bearing shells must be replaced with special repair bearing shells marked with an (R).
There are two different groups of main bearing shells.

Necessary preliminary tasks:

Remove ENGINE .
Mount engine on assembly stand Mounting engine on assembly stand (S65) .
Remove FLYWHEEL .
Removing OIL SUMP .
Remove ENGINE OIL PUMP .
Remove OIL RETURN PUMP .
Remove cylinder head See LEFT CYLINDER HEAD (S65) or RIGHT CYLINDER HEAD (S65) on left and right.
Remove all PISTONS .
Remove VIBRATION DAMPER .
Remove both TIMING CHAINS .

IMPORTANT: Unscrew all M9 fit bolts (2) first before releasing the crankshaft lower section - risk of damage!

Bearing seat bolts (1) M11.

Fig 1: Identifying Bearing Seat And M9 Fit Bolts

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IMPORTANT: Release all M9 fit bolts and remove.

Release fit bolts (M9) in sequence 1-10 and remove.

Fig 2: Crankshaft Lower Section Bolts (M9) Tightening/Loosening Sequence

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Release bearing seat bolts M11 in sequence 1-10.

Fig 3: Crankshaft Lower Section Bolts (M11) Tightening/Loosening Sequence

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Release screws (3).

Unfasten screws (2).

Bolts (1) from inside outwards.

Lift out bedplate.

Fig 4: Identifying Bedplate Screws

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Lever out crankshaft (1) with aid of a second person in direction of arrow.

NOTE: Weight of crankshaft approx. 22 kg.

Picture shows S85.

Fig 5: Levering Out Crankshaft

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IMPORTANT: If the lower crankcase section (bedplate) is opened and closed again, fit special main bearing shells marked with (R) on the bearing backs.

Replace all bearing shells (2).

Replace guide bearing (3).

Installation:

Clean sealing surface (1) with special tool 11 4 470.

Fig 6: Identifying Sealing Face, Bearing Shells And Guide Bearing

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Remove sealing compound from joint (1).

Carefully clean threads and contact surfaces in upper and lower sections of crankcase.

Installation:

Replace injector nozzles (2).

Clean sealing surface (1) with special tool 11 4 470.

Fig 7: Identifying Sealing Surface And Injector Nozzles

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Installation:

Replace main bearing shells.

Apply a light coating of engine oil to bearing shells.

Lay crankshaft (1) with a second person helping in direction of arrow into crankcase.

NOTE: Weight of crankshaft approx. 22 kg.

Picture shows S85.

Fig 8: Laying Crankshaft

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Insert seal (1).

IMPORTANT: Make sure oil bore is clean.

Fig 9: Identifying Seal

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IMPORTANT: Adhere without fail to the specified sequence of bedplate bolt connections.
Risk of damage to crankshaft.
Leaks at bedplate/crankcase.

IMPORTANT: There are no more fitting sleeves in the crankcase.
Do not use new bolts.
If new bolts are used, observe special tightening/torque specifications.

Fit lower crankcase section (bedplate) on crankcase.

Position lower section diagonally on bearing seats (1 and 5) using two fit bolts (1 and 2).

Fig 10: Identifying Crankshaft Fit Bolts

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Join fit bolts (1 and 2) to 8 Nm.

Insert fit bolts (1-8).

Join fit bolts (1-8) to 8 Nm.

Fig 11: Crankshaft Bolts Tightening/Loosening Sequence

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Insert all M11 bolts (1).

Join bearing seat bolts in sequence (1- -10) to 30 Nm.

Fig 12: Crankshaft Bolts Tightening/Loosening Sequence

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Mark all M11 bearing seat bolts with a colored line (1).

Fig 13: Identifying M11 Bearing Seat Bolts Mark

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Secure bearing seat bolts M11 with special tools 00 9 120 TORQUE ANGLE MEASURING DIAL and 00 9 130 .

Fig 14: Securing M11 Bearing Seat Bolts With Special Tools (00 9 120)

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Tighten M11 bolts to 130° angle of rotation.

IMPORTANT: Observe bolting sequence when using new bolts.

Tightening torque: 11 11 1AZ .

Fig 15: Crankshaft Bolts Tightening/Loosening Sequence

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Join all fitting bolts in sequence 1 to 10 to 15 Nm.

Fig 16: Crankshaft Bolts Tightening/Loosening Sequence

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Mark all fit bolts with a colored line (1).

Fig 17: Identifying Seat Bolt Mark

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Tighten fit bolts with special tools 00 9 120 TORQUE ANGLE MEASURING DIAL and 00 9 130 .

Fig 18: Tightening Fit Bolts With Special Tools (00 9 120)

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Secure all fit bolts (1-10) to 130° angle of rotation.

Fig 19: Crankshaft Bolts Tightening/Loosening Sequence

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Insert bolts (1).

Insert bolts (2).

Insert bolts (3).

Fig 20: Identifying Bolts

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Secure bolts (1) M8x65 (22 x) with special tools 00 9 120 TORQUE ANGLE MEASURING DIAL and 00 9 130 .

Tightening torque, see 11 11 3 AZ in 11 11 ENGINE BLOCK .

Fig 21: Securing M8x65 (22 x) Bolts With Special Tools

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Secure bolts (1) M8x40 (4 x) with special tools 00 9 120 TORQUE ANGLE MEASURING DIAL and 00 9 130 .

Tightening torque, see 11 11 4 AZ in 11 11 ENGINE BLOCK .

Fig 22: Securing M8x40 (4 x) Bolts With Special Tools

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Secure bolts (1) M6x30 (2 x).

Tightening torque, see 11 11 5 AZ in 11 11 ENGINE BLOCK .

Installation:

Insert timing chains.

Fig 23: Identifying M6x30 (2 x) Bolts

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Insert gear (2) for oil pump drive.

Tighten bolt (1).

Fig 24: Identifying Oil Pump Drive Gear And Bolt

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Secure special tool 11 5 331 with bolts (1).

IMPORTANT: Pay attention to dowel pin.

Fig 25: Securing Special Tool (11 5 331) With Bolts

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Push special tool 11 7 231 onto special tool 11 5 331 in direction of arrow.

Fig 26: Pushing Special Tool (11 7 231) Onto Special Tool (11 5 331)

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Installation:

Remove support ring from shaft seal.

Push radial shaft seal (1) uniformly by way of fitting aid 11 7 231 onto special tool 11 5 331.

Position shaft seal approx. 5 mm before crankcase.

Remove special tool 11 7 231.

Fig 27: Pushing Radial Shaft Seal

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Press in radial shaft seal (1) with special tools 11 5 332 and 11 5 333.

Fig 28: Pressing Radial Shaft Seal

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IMPORTANT: Pay attention to fitting sleeve.
Special tool 11 5 311 must rest flat on crankshaft (pay attention to fitting sleeve).

Install special tool 11 5 311 with bolts (1).

Fig 29: Installing Special Tool (11 5 311) With Bolts

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Position support ring (1) with radial shaft seal (2) on special tool 11 5 311.

Push radial shaft seal (2) uniformly in direction of arrow over support ring onto special tool 11 5 311.

Fig 30: Pushing Radial Shaft Seal

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Position shaft seal (1) approx. 5 mm before crankcase.

Remove support ring (2).

NOTE: Support ring (2) is no longer needed.

Fig 31: Identifying Shaft Seal Position

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Press in radial shaft seal (1) with special tools 11 5 312 and 11 5 313.

Fig 32: Pressing Radial Shaft Seal

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Drive both injector nozzles with special tool 11 9 360 on left and right into crankcase.

Installation:

Always replace injector nozzles.

Fig 33: Driving Injector Nozzles With Special Tool (11 9 360)

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Installation:

Use PRIMER 1.5 AND LIQUID SEALING COMPOUND 1.6 .

Prepare liquid sealing compound (2) in special tool 11 4 370.

Screw on nozzle (1) for injecting liquid sealing compound.

Fig 34: Identifying Nozzle And Liquid Sealing Compound

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Press sealing compound nozzle in direction of arrow onto nozzle at 90°.

Slowly and evenly insert liquid sealing compound (1) with special tool 11 4 370 in direction of arrow.

Fig 35: Inserting Liquid Sealing Compound Using Special Tool (11 4 370)

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Stop (seal off) escaping liquid sealing compound with PRIMER (2) 1.5 at outlet bore (1).

The procedure is identical as on the rear radial shaft seal.

Fig 36: Applying Liquid Sealing Compound At Outlet Bore

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Assemble engine.