Piston Ring Replacement - Honda Accord 2008 Manual

07/11/02 09:09:58 61TA0000_070_0024
Engine Block

Piston Ring Replacement

1. Remove the piston from the engine block (see page
7-15).
2. Using a ring expander (A), remove the old piston
rings (B).
＊０１
B
3. Clean all ring grooves thoroughly with a squared-
off broken ring or ring groove cleaner with a blade
to fit the piston grooves.
The top and 2nd ring grooves are 1.2 mm (0.05 in.)
wide. The oil ring groove is 2.0 mm (0.08 in.) wide.
File down a blade if necessary.
Do not use a wire brush to clean the ring grooves,
or cut the ring grooves deeper with the cleaning
tools.
NOTE: If the piston is to be separated from the
connecting rod, do not install the new rings yet.
7-24
4. Using a piston that has its rings removed, push a
new ring (A) into the cylinder bore 15 20 mm
(0.6 0.8 in.) from the bottom.
A
5. Measure the piston ring end-gap (B) with a feeler
gauge:
Piston Ring End-Gap
Top Ring:
Standard (New): 0.20 0.35 mm
Service Limit:
Second Ring:
Standard (New): 0.50 0.65 mm
Service Limit:
Oil Ring:
Standard (New): 0.20 0.70 mm
Service Limit:
ＴＡ０８ＡＥ４Ａ１８３６０２４５６１１ＫＢＡＴ００
−
15 20 mm (0.6 0.8 in.) −
B
A
• If the gap is too small, check to see if you have
the proper rings for your engine.
• If the gap is too large, recheck the cylinder bore
diameter against the wear limits (see page 7-18).
If the bore is beyond the service limit, the engine
block must be rebored.
−
−
(0.008 0.014 in.)
0.60 mm (0.024 in.)
−
(0.020 0.026 in.) −
0.70 mm (0.028 in.)
−
(0.008 0.028 in.) −
0.75 mm (0.030 in.)
−
＊０２
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