Engine 2014: Motor Plants and Auxiliary Boilers

1. A The piston is cooled by oil flowing through passages in the connecting rod.
2. B The piston pin is free to rotate in the bushing.
3. C The upper compression ring is protected from overheating by a heat dam.
4. D The lower scraper rings are protected from overheating by a heat dam.

Tip: press A-D to answer