X Series E83 X3 2.5Si (N52K) OFFRD
Procedure on installed engine:
Turn sprocket wheel (3) with central bolt at crankshaft into
position until special tool 11 0 290 can be secured.
Simultaneously secure special tool 11 0 290 to sprocket
wheel (3) and special tool 11 4 362 .
Release screw (2) for sprocket wheel (3).
Tightening torque 11 66 2AZ
.
Press timing chain with chain tensioner (1) in direction of arrow.
Disconnect timing chain with special tool 11 4 120 .
Feed out sprocket wheel (3) at hexagon head (4) of vacuum
pump.
Installation:
If the chain module is replaced, a mounting bar (2) is already pre-
installed.
Note:
To release bolt (1), insert a 6 mm drill bit between sprocket wheel
and oil pump housing.
Release screw (1) for sprocket wheel.
Tightening torque 11 41 6AZ
.
Release screws (2) for chain module.
Tightening torque 11 41 5AZ
.
Installation:
Replace aluminium screws.
Secure crankshaft and camshaft with special tools 11 0 300
and 11 4 280 (refer to Checking timing).
Important!
Do not remove special tools 11 0 300 and 11 4 280 to
release central bolt (1).
Employ a second person for gripping when releasing central
bolt (1).
Screw special tool 11 9 280 onto hub of vibration damper.
Release central bolt (1).
Tightening torque 11 21 1AZ
.
Installation:
Replace central bolt (1).
RA Removing and installing/replacing chain module for oil pump/vacuum pump (N52K)
BMW AG - TIS
11.02.2013 09:06
Issue status (12/2007) Valid only until next DVD is issued
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