POWERHEAD
90-883728 JULY 2001 Page 4A-49
4. Water Marks: When bearing surfaces are subjected to water contamination, a bearing
surface “etching” occurs. This etching resembles the size of the bearing.
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5. Spalling: Spalling is the loss of bearing surface, and it resembles flaking or chipping.
Spalling will be most evident on the thrust portion of the connecting rod in line with the
“I” beam. General bearing surface deterioration could be caused by or accelerated by
improper lubrication.
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a
a-Spalling
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