3 Series E90 M3 (S65) SAL
Warning!
Protective goggles must be worn.
Lever out piston circlip with special tool 11 4 492 in direction of
arrow.
If necessary, replace connecting rods.
Installation:
The gudgeon pin must be able to be pressed through the liner by
hand with little force and must not display any significant play.
Measure piston installation clearance:
Measure piston diameter with micrometer at measuring point A
from bottom edge of piston and offset at 90
°
to the axis of the
gudgeon pin.
Piston diameter at measuring point A.
Adjust micrometer to cylinder bore of engine block. Set internal
calliper on micrometer to zero. Measure bottom, centre and top of
cylinder bore in direction of travel and direction of engine rotation.
Diameter of cylinder bore.
Piston installation clearance.
Total permissible wear tolerance.
If necessary, replace piston.
RA Removing and installing/replacing all pistons (S65)
BMW AG - TIS
22.02.2013 10:19
Issue status (12/2007) Valid only until next DVD is issued
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