11 21 500 Replacing crankshaft (S62)

(engine removed)

Remove both cylinder heads, refer to 11 12 517 REMOVING AND INSTALLING BOTH CYLINDER HEADS (S62) .

Remove lower timing case cover.

Remove piston, refer to 11 25 530 REMOVING AND INSTALLING/REPLACING ALL PISTONS (S62) .

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

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.

Fig 1: Unfastening Taper Screw Mount

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.

Fig 3: Removing Main Bearing Caps

Courtesy of BMW OF NORTH AMERICA, INC.

Lever out crankshaft.

If necessary, remove sprocket wheel:

Release screw in bore (1).

Detach sprocket wheel from crankshaft.

Fig 4: Removing Sprocket Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Check adapter sleeve for damage and correct installation position.

Fig 5: Checking Adapter Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Align adapter sleeve of sprocket wheel to locating bore of crankshaft and attach sprocket wheel.

Apply a thin coat of screw retaining compound to screw thread (1).

Fig 6: Installing Sprocket Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

Insert screw.

Tighten down crankshaft sprocket wheel to 10 Nm.

Replace main crankshaft bearing shells, refer to 11 21 531 REPLACING ALL CRANKSHAFT MAIN BEARING SHELLS (S62) .

Replace conrod bearing shells, refer to 11 24 571 REPLACING ALL CONROD BEARINGS (S62) .

Replace deep-groove ball bearings in crankshaft, refer to 11 21 571 REPLACING GROOVED BALL BEARING IN CRANKSHAFT (M62 / S62) .