Engine Cooling Systems Flashcards
What is meant by pressure cooling of an air-cooled engine?
Ram air on one side of the engine is forced by a series of baffles to flow through the fins on the cylinders to a low-pressure area on the other side of the engine.
What must be inspected on the cooling system of an air-cooled engine?
All of the baffles and air seals must be in place and in good condition.
Why should an air-cooled engine not be run up to high power without the cowling installed?
The engine depends on the cowling to force air through the cylinder fins to remove the excess heat.
Why do some air-cooled engine installations have cowl flaps?
Cowl flaps produce a low pressure on one side of the engine to pull air through the cooling fins on the cylinders.
Where can you find what is the maximum amount of cylinder fin area that can be removed in order to clean out a damaged area?
In the engine overhaul manual.
What document describes the proper use of cowl flaps on an air-cooled engine?
The Pilot’s Operating Handbook.
