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Chapter 7: Lubrication

Across
Made from different organic substances, such as castor beans. soybeans, etc
A conventional motor oil is one of the refined products that can be created when a barrel of crude oil is distilled or "cracked".
A substance capable of reducing friction, heat, wear when introduced as a film between solid surfaces
pumps on large Yamaha two-stroke outboards are an integral part of the Yamaha Precision Blend System (PBS).
The force that resists relative motion between two bodies in contact
Known to further reduce friction, increase corrosion resistance, change the viscosity of an oil, contain cleaning agents, etc.
Lubricants comprised of chemical compounds that don't naturally occur.
Down
use two viscosity class numbers.
A thick lubricant that does not dissipate heat.
of an oil occurs when a measureable amount of a foreign substance unintentionally enters the oil.
To increase the operating range of a vessel, many large two-stroke outboards utilize a two, ___ _____ system
single viscosity class number
provides lubrication to the many moving parts of an engine.
are quite effective at filtering out the particle contaminants from the outboard's reservoir (sump) of oil
The property of resistance to flow in a fluid or semi-fluid