11 21 500 Replacing crankshaft (M62)

Engine Removed

Unscrew oil sump. See OIL SUMP .

Remove oil pump. See OIL PUMP WITH FILTER .

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)  or 11 22 510 REMOVING AND INSTALLING/REPLACING FLYWHEEL (M62) .

Remove rear end cover. This task is described in the section Replacing crankshaft radial seal,

refer to 11 14 151 REPLACING CRANKSHAFT RADIAL SEAL (M62/S62) .

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

Fig 1: Removing Taper Screw Mount

Courtesy of BMW OF NORTH AMERICA, INC.

Remove screws securing main bearing caps.

Fig 2: Removing Main Bearing Caps Securing Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Remove main bearing caps 1 to 5.

Lever out crankshaft.

Fig 3: Removing Main Bearing Caps

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Identifying Grinding Stage Mark On 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: Removing Sprocket Wheel From 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) .