X Series E53 X5 4.8is (N62-S) OFFRD
If necessary, replace connecting rods.
Note:
The conrods can also be replaced individually.
The piston pin must be able to be pressed through the liner by
hand with little force and must not display any significant play.
Prior to installation, measure piston installation clearance:
Measure piston diameter with micrometer at measuring point A
from lower edge of piston and offset by 90
°
to piston pin axis.
Measuring point A .
Adjust micrometer to cylinder bore of engine block. Set internal
caliper on micrometer to zero. Measure bottom, center 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.
Note:
The pistons and conrods of cylinders 1 to 8 are identical.
Important!
The conrods of cylinder banks 1 to 4 and 5 to 8 are
mounted to the pistons differently.
Cylinder bank 1 to 4
Mount conrod on piston in such a way that arrow on piston points
upwards and marking on conrod points upwards.
RA Removing and installing/replacing all pistons (N62TU)
BMW AG - TIS
12.02.2013 04:04
Issue status (12/2007) Valid only until next DVD is issued
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