Replacing crankshaft seal at rear (B48 and B46 engine) (Cooper S and John Cooper Works)

Special tools required:

23 0 490
11 8 815
11 9 182
11 9 184
11 9 181
2 360 215
11 9 183

Preliminary work needed:

Remove FLYWHEEL .

Removal:

IMPORTANT: Magnet wheel (1) is magnetic.
Keep magnet wheel (1) in a plastic bag away from shavings.

Remove magnet wheel (1) from crankshaft.

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IMPORTANT: Drill size maximum 2, 5 mm.
Remove shavings immediately with vacuum cleaner.
Do not remove shavings with compressed air!

Drill a hole in the crankshaft seal using a drill (1) (see arrow).

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IMPORTANT: Risk of damage at the crankcase and on the running surface of the crankshaft.
Immediately carefully remove residual shavings.

Screw in special tool 23 0 490 in the direction of the arrow.

Drive out crankshaft seal with impact weight in arrow direction.

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Installation:

IMPORTANT: Damage to the crankshaft seal.
Taping the sealing lip (inner) and oiling the crankshaft seal will destroy it.

Do not tap the sealing lip (inner) of the crankshaft seal.
Do not oil the crankshaft seal.
Install the crankshaft seal dry.

Pre-assemble special tool 11 8 815 on crankshaft.

Carefully slide the crankshaft seal (1) straight off the special tool 11 8 815 using a rotational movement until the crankshaft seal is positioned parallel on the timing case cover.

Remove special tool 11 8 815.

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

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Prepare special tool 11 9 181 for installation.

Connect special tool 2 360 215 onto special tool 11 9 181.

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Suck into the crankshaft seal with special tools 11 9 181 and 2 360 215 in conjunction with special tool 11 9 183.

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Screw in crankshaft seal with special tool 11 9 183 to stop.

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NOTE: Check the lining sleeve for damage.
Note the installation position of the magnet wheel.

Position magnet wheel (1) on crankshaft.

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Required follow-up work:

Install the FLYWHEEL .