11 21 531 Replacing all main crankshaft bearing shells (N62): Notes

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Special tools required:

00 2 590
00 9 120
(engine dismantled)

Clean components before installing.

Preparatory tasks are described in the section Replacing crankshaft. Refer to 11 21 500 Replacing crankshaft (N62 / N62TU) .

NOTE: Install main bearing shells (1) with lubrication groove in crankcase.
Install main bearing shells (2) without lubrication groove in the main bearing caps.

Fig 1: Installing Main Bearing Shells

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The letter (1) denotes the crankshaft construction stage.

Fig 2: Identifying Crankshaft Construction Stage

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S= Series

B= Construction stage 1

C= Construction stage 2

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

1 = yellow

2= green

3= violet

The letters (1) denote the bearing shell classification for the relevant bearing position from 1 to 5 in the crankcase and is located on the transmission side in the Vee. The first letter on the left applies to the first bearing position at the front.

Y= yellow

G= green

V= violet

Fig 3: Identifying Bearing Shell Classification

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NOTE: Main bearing caps (1, 2 and 3) are identified with punch numbers.
Main bearing caps (4 and 5) are not identified.

Fig 4: Identifying Main Bearing Caps

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NOTE: Main bearing cap number 5 can be identified by the surfaces (1) for the stop disks of the thrust bearing.

Fig 5: Identifying Main Bearing Cap Number 5

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Unscrew thread support bushings in main bearing caps.

Fig 6: Identifying Thread Support Bushings

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