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Vauxhall Workshop Service and Repair Manuals

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Crankshaft Bearing Play, Check (Determine Crankshaft Beating Play with Plastigage) > < Crankshaft Bearing Clearance, Check (Determine Crankshaft Bearing Clearance Using External Micrometer and Inside Micrometer)

Omega B

Crankshaft Bearing, Remove and Install

  Remove

Remove crankshaft – see operation "Crankshaft, Remove and Install".

Remove crankshaft bearing shell.

  Inspect

Check coloured markings (1) on the main bearing. The crankshaft (2) has a yellow, green or white marking depending on the bearing tolerance and the grinding stages – see "Technical Data".

 Object Number: 2399725 Size: DEFAULT

  Inspect

Pay attention to crankshaft (1) grinding stage. Measure crankshaft grinding stage using micrometer gauge. Grinding stages – see "Technical Data".

Original

Stage 1 (0.25 mm)

Stage 2 (0.50 mm)

The bearing shells are arranged in three colour groups within the grinding stages – see "Technical Data", they are indicated by coloured markings on the bearing shells.

Coloured marking (arrow) bearing shell (2),

Coloured marking (arrow) main bearing shell (3).

Coloured markings, yellow, green or white – see "Technical Data".

 Object Number: 2399726 Size: DEFAULT

  Install

Insert bearing shells with same colour mark.

  Inspect

Check crankshaft bearing play – see operation "Crankshaft Bearing Play, Check".

  Install

Install crankshaft – see operation "Crankshaft, Remove and Install".
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Crankshaft Bearing Play, Check (Determine Crankshaft Beating Play with Plastigage) > < Crankshaft Bearing Clearance, Check (Determine Crankshaft Bearing Clearance Using External Micrometer and Inside Micrometer)