7 Series E38 740d (M67) SAL
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,
refer to Technical Data.
Piston installation clearance,
refer to Technical Data.
Permissible total wear clearance,
refer to Technical Data.
If necessary, replace conrods.
The BMW Parts Service only supplies connecting rods in
complete sets.
Note:
It should be possible to press piston pin into bush by hand
using only slight pressure. Clearance should then be minimal.
Replace conrod bearing shells,
refer to 11 24 571.
Cylinders 1 - 4:
Mount conrod (1) to piston (4) so that, with pair number (2)
visible, arrow indicating installation direction (3) on piston
head points to left.
Cylinders 5 - 8:
Mount conrod (1) to piston (5) so that, with pair number (2)
visible, arrow indicating installation direction (3) on piston
head points to right.
Caution!
Piston and piston pin are matched to each other.
They must not be mixed up.
Fit the retaining ring with its aperture opposite to recess.
RA Removing and installing / replacing all pistons (M67)
BMW AG - TIS
10.02.2013 02:39
Issue status (12/2007) Valid only until next DVD is issued
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