Two technicians are discussing the installation of segmented [three piece] oil control rings. Technician A says the ends of the expander/spacer [middle piece] must overlap. Technician B says that the end gaps of all three pieces must be evenly spaced apart. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because the end gaps of all three pieces of a segmented oil control ring should be evenly spaced apart to ensure proper sealing and function. Technician A is incorrect because the expander/spacer should not overlap; it should be butted end-to-end.

Two Technicians Are Discussing the Installation of Segmented [Three Piece]