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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 974 (Engine - Repair (N62)) >> Valves With Springs >> 11 34 715 Replacing all valve springs (N62) >> Special tools required:

Special tools required:

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(cylinder head removed)

Preliminary tasks are described in Disassembling and assembling cylinder head. Refer to 11 12 503 Disassembling and assembling cylinder head (N62) .

Remove bearing bracket (1) with inlet camshaft and stow in special tool 11 9 470. The procedure is described in the section Removing and installing inlet camshaft. Refer to 11 31 032 Removing and installing/replacing left inlet camshaft (N62 from 9/03) , 11 31 032 Removing and installing/replacing left inlet camshaft (N62 to 9/03) , 11 31 034 Removing and installing/replacing right inlet camshaft (N62 from 9/03)  or 11 31 034 Removing and installing/replacing right inlet camshaft (N62 to 9/03) .

Fig 1: Removing Bearing Bracket
G03289409Courtesy of BMW OF NORTH AMERICA, INC.

Remove exhaust camshaft.

Align special tool 11 0 346 in direction of valve shaft.

Fig 2: Aligning Special Tool
G03289410Courtesy of BMW OF NORTH AMERICA, INC.

Press down valve spring on spring cap, top, and remove valve keys.

Fig 3: Removing Valve Keys
G03289411Courtesy of BMW OF NORTH AMERICA, INC.
CAUTION: Incorrect installation possible.
Valve springs of exhaust and inlet camshafts are different. Incorrect installation will result in engine damage.
Fig 4: Identifying Valve Spring
G03289412Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Valve springs for exhaust valves are approx. 4 mm longer.
CAUTION: Incorrect installation possible.
Incorrect installation will result in valve spring breakage.
The color coding (1) is normally located on the lower end of the valve spring.
Only the diameter is decisive for the correct installation of the valve springs.
Install valve spring so that larger diameter points to spring plate at bottom.
Fig 5: Identifying Color Coding On Valve Spring
G03289413Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement:

Fig 6: Identifying Valve Arrangement
G03289414Courtesy of BMW OF NORTH AMERICA, INC.
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