11 34 552 Removing And Installing Or Replacing All Valves (N12)

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

Necessary preliminary tasks:

Remove cylinder head.
Remove intermediate lever.
Remove eccentric shaft.
Remove inlet camshaft.
Remove exhaust camshaft.
Remove roller cam follower.
Remove valve springs.
Remove valve stem seals.

Arrangement:

Valve
Valve stem seal with spring plate, bottom
Valve spring
Top plate spring
Valve tapers

If the valves are to be reused, set then down in special tool 11 4 480 in a tidy and orderly fashion.

Fig 1: Identifying Valves Components Arrangement Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME; if necessary, readjust uniform mixture distribution.