BMW 7 Series: Replacing All Valve Stem Seals (N63)
Notes
IMPORTANT: Risk of damage to sealing lip on valve stem seal.
Fit new valve stem seals only when all valves have been installed.
Necessary preliminary work
- Remove all VALVE SPRINGS.
Press special tool 11 6 370 onto the valve stem seal.
Withdraw valve stem seal by turning and simultaneously unscrewing special tool 11 6 370.
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Fig. 299: Pressing Special Tool 11 6 370 Onto Valve Stem Seal
Installation note: Lubricate valve stem with oil and insert valve.
Installation sleeve 116380 is included in the delivery specification for the valve stem seals.
Fit special tool 116380.
Coat new valve stem seal (1) with oil and install.
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Fig. 300: Identifying Valve Stem Seal And Special Tool 11 6 380
NOTE: For use on the N63 engine, the special tool 11 6 380 must be remachined according to the sketch with a 6.2 mm drill bit dia. to a depth of A = approx. 45 mm.
This modification has already been taken into account for reordering.
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Fig. 301: Identifying Special Tool (11 6 380)
Manually press on valve stem seal as far as it will go with special tool 11 6 380.
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Fig. 302: Pressing On Valve Stem Seal
Assemble engine.
READ NEXT:
Adjusting Camshaft Timing On Left Side (N63)
Notes
IMPORTANT: Release central bolts on adjuster only with special tool 11 9
890.
Risk of damage to timing drive.
If special tool 11 9 890 can not be fitted, it is necessary when releasing the
ce
Adjusting Camshaft Timing On Right Side (N63)
Notes
IMPORTANT: Release central bolts on adjuster only with special tool 11 9
890.
Risk of damage to timing drive.
If special tool 11 9 890 can not be fitted, it is necessary when releasing the
ce
SEE MORE:
Removing And Installing (Replacing) Smart Opener Bottom Sensor
Line (Non-Contact Rear Lid Opening)
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DISCHARGE (ESD PROTECTION).
Necessary preliminary work:
Remove COVER ON REAR BUMPER PANEL.
Release latch mechanisms (1) and remove control unit (2) in direction of
arrow.
Fig. 287: Identifying Control Unit And Latch Mecha
Removing Overrunning Equipment/Maintaining Or Replacing Guide
Bush/Installing Overrunning Equipment
After installing overrunning equipment, readjust brake system, refer to
ADJUSTING BRAKE SYSTEM
Check the guide bush while installed to ascertain whether it needs to be
replaced. Raise ball end area and
replace guide bush if play is detected in ball end area.
NOTE: After installing, readjust and ch
