Accord SE Coupe L4-2156cc 2.2L SOHC MFI (1997)
Piston: Testing and Inspection
INSPECTION
1. Check the piston for distortion or cracks.
NOTE: If the cylinder is bored, an oversized piston must be used.
2. Measure the piston diameter at a point 21 mm from the bottom of the skirt.
NOTE: There are two standard-size pistons (No Letter (A) or B). The letter is stamped on the top of the piston. Letters are also stamped on the
block as cylinder bore sizes.
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Piston Diameter:
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Standard (New):
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No Letter (A): 84.980-84.990 mm (3.3457-3.3461 inch)
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B: 84.970-84.980 mm (3.3453-3.3457 inch)
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Service Limit:
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No Letter (A): 84.970 mm (3.3453 inch)
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B: 84.960 mm (3.3449 inch)
3. Calculate the difference between cylinder bore diameter and piston diameter.
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Piston-to-Cylinder Clearance:
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Standard (New): 0.020-0.040 mm (0.0008-0.0016 inch)
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Service Limit: 0.05 mm (0.002 inch)
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If the clearance is near or exceeds the service limit, inspect the piston and cylinder block for excessive wear.
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Oversize Piston Diameter:
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0.25: 85.230-85.240 mm (3.3555-3.3559 inch)
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0.50: 85.480-85.490 mm (3.3653-3.3657 inch)
