Ask The Editors: The Mud & Clutch Connection
Can overusing your clutch cause engine overheating?
Surprisingly, yes. While you are correct in assuming mud gathered on the radiator fins prevented adequate airflow needed to cool the water before entering the block, your friend’s theory isn’t wrong either. Why? Well, the very nature of how a clutch works is friction.
Friction plates rubbing against one another is how clutch engagement functions. Even in normal operating conditions, the clutch is a major contributor to the overall temperature of your engine. However, ordinarily you have air flowing through your radiator fins and air dissipating heat from the engine surfaces themselves as your machine is in motion. A layer of mud on these surfaces not only prevents air from reaching them, it actually insulates what heat is being produced internally.
While it’s tough to say whether or not overuse of the clutch is the primary culprit for your situation, we can state with certainty that clutch plate friction is a definite contributor to the overall temperature of your engine. A good tip whenever muddy track conditions present themself is to try and rely upon the clutch (especially slipping it in corners) as little as possible.
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