11 14 151 Replacing radial crankshaft seal on transmission side (N52T) by 31.12.08

Special tools required:

Necessary preliminary tasks:

Remove GEARBOX
Remove FLYWHEEL

IMPORTANT: Drill size maximum 2, 5 mm.
Remove swarf immediately.

Drill a hole with a drill (1) in the radial shaft seal (see arrow).

Fig 1: Drilling Hole On Radial Shaft Seal

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Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Immediately carefully remove swarf on the radial shaft seal (1).

Fig 2: Identifying Swarf On Radial Shaft Seal

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Courtesy of BMW OF NORTH AMERICA, INC.

Screw in special tool 23 0 490 (puller) in direction of arrow.

Drive out radial shaft seal with impact weight in direction of arrow.

IMPORTANT: Immediately carefully remove residual swarf.

Fig 3: Driving Out Radial Shaft Seal With Impact Weight

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Courtesy of BMW OF NORTH AMERICA, INC.

Prepare radial shaft seal (1) on special tool 11 8 220 .

Fig 4: Identifying Radial Shaft Seal On Special Tool 11 8 220

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Courtesy of BMW OF NORTH AMERICA, INC.

Position the radial shaft seal (1) with special tool 11 8 220 on the crankshaft.

Fig 5: Positioning Radial Shaft Seal With Special Tool 11 8 220 On Crankshaft

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Courtesy of BMW OF NORTH AMERICA, INC.

Brush radial shaft seal (1) over the special tool 11 8 220 .

Move radial shaft seal (1) parallel up against the crankcase.

Fig 6: Moving Radial Shaft Seal Parallel Up Against Crankcase

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Courtesy of BMW OF NORTH AMERICA, INC.

Fasten special tool 11 9 182 with special tool 11 9 184 on the crankshaft.

Fig 7: Identifying Special Tool 11 9 182 With 11 9 184 On Crankshaft

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Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Prepare special tool 11 9 181 for installation.

Connect special tool 11 9 185 onto special tool 11 9 181 .

Fig 8: Connecting Special Tool 11 9 185 Onto Special Tool 11 9 181

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Pull on radial shaft seal with special tool 11 9 181 and 11 9 185 in combination with special tool 11 9 183 .

Fig 9: Pulling On Radial Shaft Seal With Special Tools 11 9 181 And 11 9 185

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Screw on radial shaft seal with special tool 11 9 183 to limit position.

Fig 10: Screwing On Radial Shaft Seal With Special Tool 11 9 183 To Limit Position

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Courtesy of BMW OF NORTH AMERICA, INC.

Remove all special tools.

Assemble engine.