Findings
Measure
Liners with heat discoloration starting in the TDC-ring 1 have to be replaced.
Seizures, Seizure marks Seizure marks are of irregular circumferential length and depth. Can be caused by
either the piston skirt or the piston crown. Material deposits on the liner (smears)
show heavy discoloration and scoring.
Replace liner.
Evaluation of findings and further measures
The findings in the start phase of oxidation discoloration and heat discoloration are similar. Thorough
investigation and compliance with the above evaluation criteria allows a definite evaluation. To avoid
unnecessary disassembly work, it is recommended that another inspection be carried out after further
operation of the engine.
MS150026/02E 2013-11
| Task Description | 67
TIM-ID: 0000003285 - 003
