11 21 500 Replacing crankshaft (M62)

(engine removed)

Unscrew oil sump.

Remove oil pump.

Remove timing case cover at bottom,

refer to 11 14 110 REMOVING AND INSTALLING TIMING CASE COVER, BOTTOM (M62 VANOS FROM 9/98) .

Remove piston,

refer to 11 25 530 REMOVING AND INSTALLING / REPLACING ALL PISTONS (M62) .

Remove flywheel,

refer to 11 22 500 REMOVING AND INSTALLING/REPLACING FLYWHEEL (M62 / S62) /11 22 510.

Remove rear end cover. See 11 14 151 REPLACING CRANKSHAFT RADIAL SEAL (M62/S62) .

Unfasten taper screw mount on main bearing. (Collar screws and spacer screws.)

Fig 1: Unfastening Taper Screw Mount On Main Bearing

Courtesy of BMW OF NORTH AMERICA, INC.

Remove screws securing main bearing caps.

Fig 2: Removing Screws Securing Main Bearing Caps

Courtesy of BMW OF NORTH AMERICA, INC.

Remove main bearing caps 1 to 5.

Lever out crankshaft.

Fig 3: Removing Main Bearing Caps 1 To 5

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Marking Grinding Stage Of Crankshaft

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, remove sprocket wheel from crankshaft.

Fit special tool 11 2 383 to crankshaft.

Remove sprocket wheel with special tool 11 2 001 in conjunction with special tool 11 2 005 and special tool 11 2 004.

Fig 5: Fitting Special Tool 11 2 383 To Crankshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

Shrink-fit sprocket wheel to crankshaft.

Check wedge for correct position.

Heat sprocket wheel with a hot-air blower or on a heating plate to max. 150°C.

Replace main crankshaft bearing shells,

refer to 11 21 531 REPLACING MAIN CRANKSHAFT BEARING SHELL (M62) .

Replace conrod bearing shells,

refer to 11 24 571 REPLACING ALL CONROD BEARINGS (M62) .

Replace deep-groove ball bearings in crankshaft,

refer to 11 21 571 REPLACING GROOVED BALL BEARING IN CRANKSHAFT (M62 / S62) .