AR03.10-B-0001TA | Check piston and connecting rod for wear and damage | 12.02.16 |
Cumbustion engine 457.9 with Vehicle 958.4
Cumbustion engine 460.984 with Vehicle 934.### #R, 934.### #S
| Test | ||
1 | Remove head | ||
2 | Visually check bottom of piston as to damages | ||
| Indications to evaluate pistons and piston rings | ||
3 | Verify worn out or damaged cylinder liner parts | ||
4 | Remove piston | Only if it is profoundly worn out or damaged at the bottom or surface. | |
5 | Visually inspect for worn out or damaged piston rod and rings | ||
| Indications to evaluate pistons and piston rings | ||
6 | Remove connecting rod and the connecting rod bushing washer (connecting rod eye) and visually check for damages or twisted oil openings | In case there are grooves or notches, the connecting rod must be replaced. In case the damages cannot be unequivocally assessed: | |
Check connecting rod. | |||
7 | Visually check for damaged or worn out connecting rod bushings and bushings pins | If damage or wear out is identified, the engine must be removed and repaired. Do not proceed to any other steps. | |
| Reference for connecting rod bushings and connecting rod bushings pins wear out evaluation | ||
8 | Assemble piston | ||
9 | Install head |
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