Engine: Motor Plants and Auxiliary Boilers

1. A permit accurate stretch gauge measurement of bolt elongation during installation
2. B maintain the same hold-down force on the injector regardless of varying engine operating temperatures
3. C prevent bolt failure by allowing limited movement of the injector when excessively high cylinder pressures are developed
4. D absorb the high-pressure pulses developed during the fuel injection process

Tip: press A-D to answer