CYLINDER BLOCK INSPECTION

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1.  Measure the distortion of the following using a straight edge and feeler gauge.

(1)  Measure the distortion in six directions as shown in the figure.

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•  If it exceeds the maximum specification, replace the cylinder block.

Maximum distortion, head gasket side of the cylinder block [Other than between cylinder bores]

0.10 mm {0.0039 in}

(2)  Measure the distortion in three directions (between cylinder bores) as shown in the figure.

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•  If it exceeds the maximum specification, replace the cylinder block.

Maximum distortion, head gasket side of the cylinder block [between cylinder bores]

Distortion on head gasket surface is convex: 0.015 mm {0.00059 in}

Distortion on head gasket surface is concave: 0.045 mm {0.0018 in}

2.  Measure the cylinder bore diameter using the cylinder gauge. The measurement position is in the X and Y directions at a point 46.9 mm {1.85 in} below the top surface of the cylinder as shown in the figure.

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•  If it is not within the specification, replace the cylinder block.