Replacing Valve Stem Seals on BMW 3 Series E90 330i (N53)
11 34 560
Replacing all valve stem seals (N53)
Special tools required:
•
11 1 480
•
11 6 380
Necessary preliminary tasks:
•
Remove cylinder head.
•
Remove intake camshaft.
•
Remove exhaust camshaft.
•
Remove roller cam follower.
•
Remove all valve springs.
Firmly press special tool 11 1 480 onto existing valve stem
seals.
Detach valve stem seal from valve stem by turning and
simultaneously pulling special tool 11 1 480 .
Installation:
Insert all valves.
Note:
For use on the N54 engine, special tool 11 6 380 must be
remachined according to the sketch with a 10 mm dia. drill bit to a
depth of B = approx. 23 mm.
This modification has already been taken into account for
reordering.
RA Replacing all valve stem seals (N53)
BMW AG - TIS
19.02.2013 19:02
Issue status (12/2007) Valid only until next DVD is issued
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