Block and Piston Inspection (1.5L Engine): Inspection

Crankshaft - Remove
Piston - Remove

Engine Block - Inspect

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1. Check the top of the engine block for warpage. Measure along the edges and across the center as shown.

Engine Block Warpage
Standard (New):	0.07 mm (0.002 in) max.

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2. Measure the wear and taper in direction Y and X at three levels inside each cylinder as shown. If measurements in any cylinder are beyond the oversize bore service limit, replace the engine block. If the engine block is being rebored, check the piston-to-cylinder bore clearance.

3. Hone any cored or scratched cylinder bores if needed.

Bore Taper
Limit:	(Difference between first and third measurement) 0.050 mm (0.00197 in)

Reboring Limit:

0.25 mm (0.0098 in) max.

Oversize Bore
0.25:	73.250-73.265 mm (2.88385-2.88444 in)

Cylinder Bore Size
Standard (New):
Direction X:	73.000-73.020 mm (2.87401-2.87480 in)
Direction Y:	73.000-73.015 mm (2.87401-2.87460 in)
Service Limit:	73.065 mm (2.87657 in)

Piston - Inspect

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1. Make sure of the mark (A) on the piston.

Mark:

59B or 5PA

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2. Check the pistons for distortion or cracks.

3. Measure the piston skirt diameter at a point 10 mm (0.39 in) (59B) or 11 mm (0.43 in) (5PA) from the bottom of the skirt.

Piston Skirt Diameter
Standard (New):	72.972-72.979 mm (2.87291-2.87318 in)
Service Limit:	72.962 mm (2.87251 in)

Courtesy of HONDA, U.S.A., INC.

4. Calculate the difference between the cylinder bore diameter and the piston diameter. If the clearance is near, or exceeds the service limit, inspect the piston and the cylinder bore for excessive wear.

Piston-to-Cylinder Bore Clearance
Standard (New):	0.021-0.043 mm (0.00083-0.00169 in)
Service Limit:	0.050 mm (0.00197 in)

All Removed Parts - Install

1. Install the parts in the reverse order of removal.