Question

In air-cooled engine, high mean cylinder temperatures mean reduced carbon deposits on the combustion chamber wall.

(a) True

(b) False

I have been asked this question during an internship interview.

Asked question is from Air Cooled Systems in division Heat Rejection and Cooling of IC Engine

Answer 1

The correct answer is:

(b) False

In air-cooled engines, higher mean cylinder temperatures can actually increase carbon deposits on the combustion chamber walls. This is because excessive heat may cause incomplete combustion or lead to higher temperatures in the combustion chamber, which can promote the formation of carbon deposits. The cooling system in air-cooled engines, being less efficient than liquid-cooled systems, can sometimes result in less uniform temperature distribution, contributing to such issues.