Block And Piston Inspection; Cylinder Bore Honing - Honda ACCORD HYBRID 2005 Service Manual

Engine Block
Block and Piston Inspection (cont'd)
7. Calculate the difference between cylinder bore
diameter and piston diameter. If the clearance is
pear or exceeds the service limit, inspect the piston
and cylinder bore for excessive wear.
Piston-to-Cylinder Bore Clearance
Standard (New): 0.015—0.040 mm
(0.0006-0.0016 in.)
Service Limit: 0.08 mm (0.003 in.)
S E R V I C E LIMIT
0.08 mm (0.003 in.)
Cylinder Bore Honing
1. Measure the cylinder bores (see step 4 on page
7-17). If the engine block is to be reused, hone the
cylinders and remeasure the bores. Only scored or
scratched cylinder bores must be honed.
2. Remove and discard the oil jets (see page 8-9).
3. Hone the cylinder bores w i t h honing oil and a fine
(400 grit) stone in a 60 degree Crosshatch pattern.
NOTE:
• Use only a rigid hone w i t h 400 grit or finer stone,
such as Sunnen, A m m c o , or equivalent.
• Do not use stones that are w o r n or broken.
4. W h e n honing is complete, t h o r o u g h l y clean the
engine block of all metal particles. Wash the
cylinder bores w i t h hot soapy water, then dry and
oil t h e m i m m e d i a t e l y to prevent rusting. Never use
solvent, it w i l l only redistribute the grit on the
cylinder walls.
5. If scoring or scratches are still present in the
cylinder bores after honing t o the service limit,
rebore the engine block. S o m e light vertical scoring
and scratching is acceptable if it is not deep enough
to catch your fingernail and does not run the full
length of the bore.
6. Install the oil jets (see page 8-9).
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