Z Series E85 Z4 3.0Si (N52) ROADST
Warning!
Protective goggles must be worn.
Guide lug and cutout on special tool 11 9 493 must point to the
piston crown; only then can special tool 11 9 494 be correctly
fitted.
When special tools 11 9 493 and 11 9 494 are correctly
positioned, the piston pin circlip must be driven in with a plastic
hammer in the direction of the arrow.
Note:
See illustration.
Note:
B 30.
Install all piston rings.
Install all bearing shells.
Coat piston and piston rings with oil.
Pre-install piston (2) in special tool 11 6 261 .
Attach special tool 11 8 330 in conrod (2).
Installation:
Check protective lugs (1) on special tool 11 8 330 for correct
position and damage.
Note:
B 25 .
Install all piston rings.
Install all bearing shells.
Coat piston and piston rings with oil.
Pre-install piston (2) in special tool 11 6 241 .
Attach special tool 11 8 330 in conrod (2).
Installation:
Check protective lugs (1) on special tool 11 8 330 for correct
position and damage.
Insert piston with conrod in cylinder.
Important!
Risk of damage to oil spray nozzle.
Danger of piston ring failure.
Press in piston with finger pressure only, do not drive in (see
arrows).
Insert piston (1) so that arrow (2) on piston crown points to
camshaft drive.
Press in piston (1) with special tools 11 6 261 / 11 6 241 .
RA Removing and installing/replacing all pistons (N52)
BMW AG - TIS
16.02.2013 22:01
Issue status (12/2007) Valid only until next DVD is issued
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