Chery A21 2005, Service Manual, Page: 421 / 475

CHERY A21 SERVICE MANUAL MECHANISM OF 2.0NALC ENGINE
32
2) Examine the clearance between piston
ring and ring groove.
a. Clean up the accumulated carbon in the
ring groove with piston ring.
b. Examine the clearance between piston
ring and ring groove with feeler gauge.
Reference Value
（
mm
）
1
st
Ring 0.04--0.08
2
nd
Ring 0.01--0.025
Replace with the new one if the examined
clearance cannot be worn and torn any
longer.
3) Inspect the end clearance of piston ring.
a. Put the piston ring at the position 45mm
below the top surface of cylinder
aperture and push the piston ring into
cylinder with piston.
b. Measure the opening with feeler gauge.
Replace with the new piston if the examined
clearance exceeds the limit.
PDF created with pdfFactory Pro trial version www.pdffactory.com