Measuring all pistons

NOTE: The description is for one component only. The procedure is identical for all further components.

Measuring piston

Check

Position micrometer in area (A) and measure piston installation clearance transversely to piston pin.

TECHNICAL DATA - PISTON DIAMETER SPECIFICATION

Piston diameter
Measure the piston diameter at distance (A) from the lower end of the piston skirt.	Distance (A) to the lower end of the piston skirt	14 mm
Courtesy of BMW OF NORTH AMERICA, INC.	Nominal dimension of piston diameter	81.953 mm... 81.971 mm

Courtesy of BMW OF NORTH AMERICA, INC.

Result

» Piston does not correspond to the specifications.

Measure