11 31 025 Removing and installing/replacing inlet camshaft (N14)

WARNING: This page is about a different car, the 2008 MINI Cooper and 2007 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 4 480
11 9 000
11 9 551
11 9 552
11 9 661
11 9 662

IMPORTANT: It is absolutely essential to follow an exact procedure for removing and installing the inlet camshaft.

In order to avoid incorrect timing adjustment, it is essential to check the locking of the adjustment unit and if necessary perform locking by rotating the camshaft.

Necessary preliminary tasks:

Remove Cylinder Head Cover .
Check Timing .
Remove Chain Tensioner .

To release central bolts, always use special tool 11 9 551 of exhaust camshaft.

Position special tool 11 9 551 on twin surface of exhaust camshaft.

Secure special tool 11 9 551 with a screw (1).

Fig 1: Special Tool (11 9 551) And Screw

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IMPORTANT: Check function of adjustment unit locking by rotating camshaft.

Mount special tool 11 9 551 on inlet and exhaust camshafts.

Screw in special tool 11 9 552 on cylinder head with a screw.

To release central bolts, always use special tool 11 9 551 .

Fig 2: Special Tool (11 9 522) And (11 9 551)

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Release screws (2).

Remove clamping rail (1).

Fig 3: Clamping Rail And Screws

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Release screw (1).

For tightening torque refer to 11 11 3AZ in 11 11 ENGINE BLOCK .

Fig 4: Screws

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Release central bolt (3).

For tightening torque refer to 11 36 2AZ in 11 36 VARIABLE CAMSHAFT CONTROL .

Feed out sprocket wheel (2) from timing chain (1) towards front.

Fig 5: Central Bolt, Sprocket Wheel And Timing Chain

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Release central bolt (3).

For tightening torque refer to 11 36 1AZ in 11 36 VARIABLE CAMSHAFT CONTROL .

Set down VANOS adjustment unit on special tool 11 4 480 .

Fig 6: Central Bolt And Timing Chain

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IMPORTANT: Removed cylinder head:

When using special tool 11 9 000 , it will be necessary to remove the aluminium profile insert.

Screw special tool 11 9 661 with special tools 11 9 662 into spark plug holes.

Turn eccentric shaft (1) in direction of ring and lock.

Fig 7: Eccentric Shaft, Removal Direction, Special Tool (11 9 661) And (11 9 662)

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Release all screws on bearing caps (1).

For tightening torque refer to 11 12 6AZ in 11 12 CYLINDER HEAD WITH COVER .

Bearing cap (2) is a thrust bearing and has the number (5).

All bearing caps (1) are identified with numbers from (6 to 9).

Fig 8: Bearing Caps

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Inlet camshaft is identified with designation (IN).

Insert inlet camshaft so that designation (IN) can be read from above.

Fig 9: Inlet And Exhaust Camshaft Designations

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Position inlet camshaft (1) so that cam of inlet camshaft (1) points upward at an angle.

Installation:

Lubricate all bearing points with engine oil.

Fig 10: Inlet Camshaft And Positioning

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Assemble engine.

Installation:

Adjust Valve Timing .