11 24 571 Replacing all conrod bearings (N62)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

(piston removed)

CAUTION: Note grinding stages on crankshaft.

The letter (1) denotes the crankshaft construction stage.

The numbers (2) denote the bearing shell classification for the relevant bearing position from 1 to 5 (main bearing cap).

Fig 1: Identifying Letter Denotes Crankshaft Construction Stage And Numbers Denote Bearing Shell Classification For The Relevant Bearing Position

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Install new conrod bearing shells.

Insert one red and one blue bearing shell for each conrod.

Install piston.

Fig 2: Installing New Conrod Bearing Shells

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Check connecting-rod bearing clearance:

Piston in BDC position.

Fit special tool 00 2 590 (Plastigage Type PG 1) to the oil-free crankshaft.

Position bearing caps so that pair numbers match up.

Fig 3: Positioning Bearing Caps

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CAUTION: Do not distort conrods or crankshaft.

Use the old connecting rod bolts to check connecting-rod clearance.

Tighten down conrod bolts with special tool 00 9 120 or special tool 11 2 110.

Fig 4: Tightening Conrod Bolts With Special Tool 00 9 120

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Remove bearing cap and read off bearing play at width of flattened plastic thread with assistance of measurement scale.

Conrod bearing clearance.

Fig 5: Reading Off Bearing Play At Width Of Flattened Plastic Thread With Assistance Of Measurement Scale

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Tighten down conrod bolts with special tool 00 9 120 or special tool 11 2 110.

Fig 6: Tightening Conrod Bolts With Special Tool 00 9 120

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