Scalloped radiator fan & the A/C Compressor - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 04-18-2013, 11:42 AM Thread Starter
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Scalloped radiator fan & the A/C Compressor

My car is the long-engine short-nose Fintail (W110). It has no radiator shroud, and the clutch fan is about two inches from the radiator. With the engine running, and me standing by the right front tire leaning into the engine bay, I can feel a strong breeze blowing over the carbs and exhaust manifold. It doesn't happen on the left side of the engine bay. Hmmm, that's strange. The radiator fan looks as though someone cut out a 1/4 circle from the tip of each blade. Is that what directs the air over the hot side of the engine? Is that German engineering or what!!!

Assuming that's an engineering design, doesn't putting the A/C compressor on the right side of the engine (between the radiator and the carbs / exhaust manifold) disrupt that cooling mechanism?

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post #2 of 3 (permalink) Old 04-18-2013, 05:00 PM
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Air conditioning was an American option on most European early model cars. It was essentially just "stuck on" after the cars were made.
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post #3 of 3 (permalink) Old 04-19-2013, 03:34 PM
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While the fan blades are designed to push air over the engine block there is still a variance in air flowing radially out from the fan, because of the tilt of the blades. Think of them like boat oars as you are looking down from the top, in that specific position you get the full blast of the fan blades positioning but if you were to be on the exact opposite side, underneath the car as if it was on a tall enough lift for you to stand under, that area would have the same force of air. This extends all the way around the fan actually so you could feel it if you were to move around following the shape of the fan. I tried to find a diagram but nothing exactly, but I hope my explanation makes sense enough.


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