Glossary “oil wash” Definition:
When excessive fuel washes oil from the cylinder walls.

Glossary “oil slinger” Definition:
Metal disc that is located between the engine pulley and timing gear to force oil away from the timing-gear cover seal. Can also be found behind the differential pinion seal.

Glossary “oil sludge” Definition:
Accumulation of thickened oil, water, carbon, and dust particles inside an engine.

Glossary “oil squirt hole” Definition:
Small hole located near the lower end of the connecting rod, providing a lubrication path to the cylinders or camshaft.

Glossary “oil strainer” Definition:
Screen placed at the inlet of the oil pump pick-up tube to prevent dirt and debris from entering the pump.

Glossary “oil sump” Definition:
Term used for oil pan.

Glossary “oil seal” Definition:
Seal around a rotating shaft or other moving part to prevent oil leakage.

Glossary “oil seal and shield” Definition:
A pair of devices that are used to prevent or control oil leakage past the valve stem and guide into the combustion chamber ports.

Glossary “oil separator” Definition:
Device used to separate oil from air, or oil from another liquid.

Glossary “oil ring separator” Definition:
Term used for oil-ring expander.

Glossary “oil scraper ring” Definition:
Ring used to scrape oil off the cylinder will that may have been left by the oil control ring.

Glossary “oil ring” Definition:
Piston ring that scrapes oil from the cylinder wall to control cylinder wall lubrication prevent excessive oil loss past the piston and into the combustion chamber.

Glossary “oil ring expander” Definition:
Thin metal strip used to maintain a constant pressure on the oil-ring rail against the cylinder wall.

Glossary “oil ring rails” Definition:
Two thin metal rings used to scrape oil from the cylinder walls.

Glossary “oil pump pick-up” Definition:
Tube with a screen coving the intake, attached to the oil pump. Placed near the bottom of the oil pan which supplies oil to the pump.

Glossary “oil pumping” Definition:
Leakage of oil past the rings and into the combustion chamber.

Glossary “oil reservoir” Definition:
1). A shock absorber section containing an extra fluid supply to meet operational requirements. 2). The engine oil pan. 3). Container for oil reserve supply.

Glossary “oil pressure indicator” Definition:
Term used for oil-pressure gauge.

Glossary “oil pressure sending unit” Definition:
Is threaded into cylinder block oil passage. Sends an electrical signal to the gauge or light in the instrument cluster.

Glossary “oil pump” Definition:
A pump, driven directly or indirectly by the camshaft or crankshaft, that draws oil from the oil pan and forces it, under pressure, through the engine lubrication system.