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11 34 715 Replacing all valve springs (N14)

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks: 

Place cylinder head (1) on special tool 11 9 000 .

NOTE: Illustration shows: N12.
Fig 1: Placing Cylinder Head On Special Tool
G04796324Courtesy of BMW OF NORTH AMERICA, INC.

Prepare special tool 11 9 007 on special tool 11 9 006.

Fig 2: Identifying Special Tools (11 9 007 And 11 9 006)
G04796325Courtesy of BMW OF NORTH AMERICA, INC.

Align special tool 11 9 006.

Lock eccentrics (1) on special tool 11 9 000 in direction of arrow.

Fig 3: Locking Eccentrics On Special Tool (11 9 000)
G04796326Courtesy of BMW OF NORTH AMERICA, INC.

Press down valve spring and spring retainer (1) with special tool 11 9 017.

Fig 4: Pressing Valve Spring And Spring Retainer Using With Special Tool (11 9 017)
G04796327Courtesy of BMW OF NORTH AMERICA, INC.

Remove valve tapers with a magnet.

Remove valve spring and spring retainer.

Set down on special tool 11 4 480 in a tidy and orderly fashion.

Fig 5: Removing Valve Tapers Using Magnet
G04207672Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Incorrect installation possible.

Incorrect installation will result in valve spring breakage.

Color marking (1) is normally on lower end of valve spring.

The larger diameter must point downwards to the valve stem seal.

Fig 6: Identifying Color Marking On Lower End Of Valve Spring
G04740095Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement:

  1. Valve
  2. Valve stem seal with spring plate, bottom
  3. Valve spring
  4. Top plate spring
  5. Valve tapers
Fig 7: Exploded View Of Valve Assembly
G04740096Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.