Podcast
Questions and Answers
What is the path of oil flow after it passes through the pressure oil screen?
What is the path of oil flow after it passes through the pressure oil screen?
What is the purpose of the suction screen in the sump pickup tube?
What is the purpose of the suction screen in the sump pickup tube?
Where does the oil flow after passing through the left oil gallery?
Where does the oil flow after passing through the left oil gallery?
What component closes the rear end of the right oil gallery?
What component closes the rear end of the right oil gallery?
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What is the purpose of the galleries in the oil system?
What is the purpose of the galleries in the oil system?
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What is the primary purpose of the oil cooler bypass valve?
What is the primary purpose of the oil cooler bypass valve?
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Which component is responsible for creating pressure in the oil system?
Which component is responsible for creating pressure in the oil system?
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What is the function of the passage connected by the camshaft front journal groove?
What is the function of the passage connected by the camshaft front journal groove?
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What is the purpose of the flexible hose connections outside the crankcase?
What is the purpose of the flexible hose connections outside the crankcase?
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What is the function of the oil pressure relief valve?
What is the function of the oil pressure relief valve?
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Study Notes
Oil System Overview
- The O-200-A series engines use a wet-sump, pressure-lubricating oil system.
Oil Flow Path
- Oil in the sump passes through the sump pickup tube and suction screen to the oil pump's suction side.
- From the oil pump's pressure side, oil is fed through the pressure oil screen or external full-flow oil filter into the left oil gallery.
- If an oil cooler is installed, oil flows through the oil cooler bypass valve, then to the cooler via a flexible hose connection, and back to the engine via a second flexible hose connection.
Oil Distribution
- Oil flows forward through the left gallery, across the crankcase, and into the right gallery through passages connected by the camshaft front journal groove.
- The right gallery is closed by the oil pressure relief valve at its rear end.
- The galleries pressure-feed the main bearings, camshaft bearings, and hydraulic tappets.
Oil System Overview
- The O-200-A series engines use a wet-sump, pressure-lubricating oil system.
Oil Flow Path
- Oil in the sump passes through the sump pickup tube and suction screen to the oil pump's suction side.
- From the oil pump's pressure side, oil is fed through the pressure oil screen or external full-flow oil filter into the left oil gallery.
- If an oil cooler is installed, oil flows through the oil cooler bypass valve, then to the cooler via a flexible hose connection, and back to the engine via a second flexible hose connection.
Oil Distribution
- Oil flows forward through the left gallery, across the crankcase, and into the right gallery through passages connected by the camshaft front journal groove.
- The right gallery is closed by the oil pressure relief valve at its rear end.
- The galleries pressure-feed the main bearings, camshaft bearings, and hydraulic tappets.
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Description
This quiz covers the wet-sump, pressure-lubricating oil system used in the O-200-A series engines, including the oil flow path and components. Test your knowledge of the oil system's components and operation.
