Solutions It operates the valves of an internal-combustion engine has 7 entries with similar clues
- 5-letter words
- sumpsCasings holding oil in internal combustion engine
- xenonGas used in thermionic valves
- motorInternal combustion engine
- 6-letter words
- petrolFuel for the internal combustion engine
- 7-letter words
- big-endImportant part of the connecting rod in an internal combustion engine
- 10-letter words
- air-filterCar's feature that keeps particles out of an internal combustion engine
- spark-plugElectrical device in an internal combustion engine