TM 5-2420-231-23-1
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CYLINDER HEAD INSPECTION
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1. Remove cylinder head from engine (WP 0111).
2. Inspect cylinder head (Figure 1, Item 1) for signs of gas or coolant leakage.
3. Use a straight edge and a feeler gauge to check combustion side of the cylinder head (Figure 1, Item 1) for
flatness.
a. Measure from side to side (A). Maximum permissible distortion 0.0012 in. (0.03 mm).
b. Measure from end to end (B). Maximum permissible distortion 0.0020 in. (0.05 mm).
c.
Measure from corner to corner (C). Maximum permissible distortion 0.0020 in. (0.05 mm).
Figure 1. Cylinder Head.
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4. Install cylinder head on engine (WP 0111).
END OF TASK
