bmw Workshop Repair Guides

BMW Workshop Service and Repair Manuals

4 TD Pistons With Rings And Pins N52 _ B30 > < 2 TD Pistons With Rings And Pins N52 _ B25
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11 25 Pistons with Rings and Pins N52  B30

Piston and pin are paired to each other - replace together
only.

Measuring point "A" (position)

mm

14

Piston diameter at measuring point "A"

Original (new dimension)

mm

84.990 

±

 0.010

Repair stage (new dimension)

mm

%

Oversize (new dimension)

mm

85.240 

±

 0.010

Piston installation clearance (piston new)

mm

0.000 ... 0.035

Piston installation clearance (piston worn)

mm

0.020 ... 0.047

Permissible total wear tolerance between piston and
cylinder

(engine operated)

mm

0.15

TD  Pistons with Rings and Pins N52 / B30

BMW AG - TIS

05.02.2013  18:43

Issue status (12/2007) Valid only until next DVD is issued

Copyright

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4 TD Pistons With Rings And Pins N52 _ B30 > < 2 TD Pistons With Rings And Pins N52 _ B25