Replacing all crankshaft main bearing shells (B36 engine) (Cooper base)

Special tools required: 

• 002010

Attention! 

Replace main bearing bolts.

There must be no oil in the blind holes (risk of cracking)  .

Do not  wash off screw coating.

Incorrect assembly of the crankshaft bearing caps will result in damage  to the crankcase.

Installation note: 

Main bearing shells and guide shells are still  classified by colors  or numbers  .

The classification of the main bearing shells and guide shells is being changed  to a classification exclusively  by numbers  .

The classification by colors is dropped.

Preliminary work needed: 

• Remove CRANKSHAFT .

Enter the code letter on the crankcase  in the table.

K = Clutch side

The item numbers (4) to (1) describe the bearing seats 4 to 1. The code number is located on each of the crankshaft bearing caps  .

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Enter the key performance indicators on the crankshaft in the table.

The item numbers (1) to (4) describe the bearing seats 1 to 4. The code number is located on each of the crankshaft bearing caps  .

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Enter the code letters of the crankcase and the code numbers of the crankshaft.

Bearing seat 1	Code letter  on the crankcase	Key performance indicator  on the crankshaft
Bearing seat 2
Bearing seat 3
Bearing seat 4

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Use the table below to determine the colors  or numbers  of the main bearing shells  (1) with lubricating groove  in the crankcase  :

	A	B	C
1	Classification 1 (blue)	Classification 2 (green)	Classification 2 (green)
2	Classification 1 (blue)	Classification 2 (green)	Classification 3 (brown)
3	Classification 2 (green)	Classification 2 (green)	Classification 3 (brown)

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Use the table below to determine the colors  or numbers of the guide bearing shell  (1) with lubricating groove  in the crankcase  :

	A	B	C
1	Classification 1 (blue)	Classification 2 (green)	Classification 2 (green)
2	Classification 1 (blue)	Classification 2 (green)	Classification 3 (brown)
3	Classification 2 (green)	Classification 2 (green)	Classification 3 (brown)

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Use the table below to determine the colors  or numbers  of the main bearing shells  (1) without lubricating groove  in the crankshaft bearing cap  :

	A	B	C
1	Classification 1 (blue)	Classification 1 (blue)	Classification 2 (green)
2	Classification 2 (green)	Classification 2 (green)	Classification 2 (green)
3	Classification 2 (green)	Classification 3 (brown)	Classification 3 (brown)

Use the table below to determine the colors  or numbers  of the guide bearing shells  (1) without lubricating groove  in the crankshaft bearing cap  :

	A	B	C
1	Classification 1 (blue)	Classification 1 (blue)	Classification 2 (green)
2	Classification 2 (green)	Classification 2 (green)	Classification 2 (green)
3	Classification 2 (green)	Classification 3 (brown)	Classification 3 (brown)

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Place main bearing shell (1) with  lubricating groove in crankcase (see arrows).

Observe combination of colors or numbers according to the table.

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Observe combination of colors or numbers according to the table.

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Insert main bearing shell (1) with no  lubricating groove in the crankshaft bearing cap (see arrows).

Observe combination of colors or numbers according to the table.

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Install CRANKSHAFT .

Check SIDE CLEARANCE .

If necessary, check guide bearing shells, crankshaft and crankcase.

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Rotate crankshaft (1) with special tool 00 2 010 in arrow direction.

Check crankshaft COEFFICIENT OF FRICTION .

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Required follow-up work: 

Assemble engine.