914 Engine Tin Fan Duct Caps

914 Engine Tin Fan Duct Caps

People often remove the interior fan ducts to make it easier to work on the engine. If these holes are left open, a lot of the engine fan's airflow will escape through these holes instead of cooling the cylinders. I have observed without the caps, idling head temperatures of 380F. With the caps idle head temperatures of 280-320F with a smooth idle.

Comes as a pair of 2 caps, designed with a recess to fit a standard width hose clamp.

Hose clamps not included.

Made in Canada.

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