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Oil Reservoir

1. A shock-absorber section containing an extra fluid supply to meet operational requirements. 2. The engine-oil pan. 3. A container for oil reserve supply.

Oil Ring

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.

Oil Scraper Ring

A ring used to scrape oil off the cylinder will that may have been left by the oil control ring.

Oil Seal

A seal around a rotating shaft or other moving part to prevent oil leakage.

Oil Seal And Shield

A pair of devices that are used to prevent or control oil leakage past the valve stem and guide into the combustion chamber ports.

Oil Separator

A device used to separate oil from air, or oil from another liquid.

Oil Slinger

A metal disc that is located between the engine pulley and timing gear to force oil away from the timing-gear cover seal.

Oil Sludge

An accumulation of thickened oil, water, carbon, and dust particles inside an engine.

Oil Squirt Hole

A small hole located near the lower end of the connecting rod, providing a lubrication path to the cylinders and camshaft.

Oil Strainer

A wire-mesh screen placed at the inlet of the oil-pump-pick-up tube to prevent dirt and debris from entering the pump.

Oil Sump

A term used for oil pan.

Oil-fouled Plug

A wet, oily deposit on a spark plug that may be caused by oil leaking past worn piston rings.

Oil-injected Cylinder

A special calibrated cylinder that may be used to inject a measured amount of refrigeration oil into the system.

Oil-intake Screen

A strainer located at the lower end of the oil pickup tube in sump to remove large contaminant particles.

Oil-pan Rail

The flat-flanged portion f the oil pan with many bolt holes used to secure it to the engine.

Oil-pressure Gauge

An instrument used to display the oil pressure of the engine lubrication system.

Oil-pressure Indicator

A term used for oil-pressure gauge.

Oil-ring Expander

A thin metal strip used to maintain a constant pressure on the oil-ring rail against the cylinder wall.

Oil-ring Rails

Two thin metal rings used to scrape oil from the cylinder walls.

Oil-ring Separator

A term used for oil-ring expander.