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.

Courtesy of BMW OF NORTH AMERICA, INC.

TECHNICAL DATA SPECIFICATION

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

Result

» Piston does not correspond to the specifications.

Measure