an internal-combustion engine in which power is transmitted directly to rotating components
The rotary engine was an early type of internal-combustion engine, usually designed with an odd number of cylinders per row in a radial configuration, in which the crankshaft remained stationary and the entire cylinder block rotated around it.
An engine that produces rotary motion or that has a rotating part or parts, in particular
An aircraft engine with a fixed crankshaft around which cylinders and propeller rotate
radial engine: an internal-combustion engine having cylinders arranged radially around a central crankcase
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow
(valve) a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
(valve) device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
(valve) control consisting of a mechanical device for controlling the flow of a fluid
A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
Valve Cover Polish (before / after)
You can really see the difference a little elbow grease makes. Here's stages of polishing listed:
Bottom Left: Untouched Top Left: Scrubbed with steel wool and engine degreaser Top Right: 1st round of polish Bottom Right: 2 round of polish.
I start of scrubbing each valve with steel wool and engine degreaser, followed by a round of polishing by hand with Mothers Mag & Aluminum polish. I then follow through once more polishing & buffing with a variable speed rotary tool.
You can really tell which valve covers were facing forwards, taking 47 years of road abuse consisting of every little thing imaginable being shot at it.