Top Ring Clearance; Second Ring Clearance; Piston Ring Dimensions - Honda Civic 2002-2003 Service Manual

Engine Block
Piston Ring Replacement (cont'd)
6. Install the top ring and second ring as shown.The
top ring (A) has a 1 R mark or no mark and the
second ring (8) has a 2R mark or 2ND mark. The
marks must be facing upward.
Piston Ring Dimensions:
A
A
Top Ring (Standard):
A:3.1 mm (0.12 in.)
B: 1.2
mm
(0.05
in.)
Second Ring (Standardl:
A: 3.4 mm (0.13 in.)
B: 1.2 mm (0.05 in.)
7, Rotate the rings in their grooves to make sure they
do not bind.
7-22
8. Position the ring end gaps as shown:
OIL RING GAP
TOP RING GAP
and SPACER
RING GAP
About 90 0
PISTON PIN
SECOND RING GAP
OIL RING GAP
9. After installing a new set of rings, measure the
ring-ta-groove clearances:
Top Ring Clearance
Standard (New):
0.035-0.060 mm (0.0014-0.0024 in.)
Service Limit: 0.13 mm (0.005 in.)
Second Ring Clearance
Standard (New):
REKEN manufactured ring
0.030-0.055 mm (0.0012-0.0022 in.)
FEDERAL MOGUL manufactured ring
0.025-0.060 mm (0.0010-0.0024 in.)
Service Limit: 0.13 mm (0.005 in.)
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