28/10/2026
▶Piston ring joint clearance too great◀
An excessive joint clearance on the piston rings appears after a long service life and high wear on the cylinders and piston rings. The joint clearance is too great if it has doubled its size compared to its new condition. Increases in clearance of up to 0.3 mm are negligible. They contribute neither to a notable loss of engine power nor to high oil consumption. The significance of a slightly enlarged piston ring joint clearance is often over-estimated.
👉Remedy: Replace worn pistons and cylinders