I had some questions on the operating temperatures reached (about
213 - 220 deg.F) in hot weather with the MGA. Since raising these
questions I have ordered some Water Wetter as recommended by
someinterested souls. While checking the cooling system once again,
I noticed that when I place my hand in front of the radiator while
the engine is running, I can feel a considerable draught of air
in the center of the radiator and relatively less at the outer
areas. This is, of course because the fan blades are located
at the center on the other side of the radiator. It seems to me
although without hard data to support the idea, that the peripheral
areas of the radiator do not get the cooling benefits of the fan
thus reducing the system's effectiveness. Also, on the fan side of
the radiator it appears that the fan may be drawing air from adjacent
areas other than through the radiator. Does anyone support the idea
that a simple shroud made to surround the fan and perhaps attached
in place utilizing the radiator mounting bolts might serve to channel
most of the air through the radiator and provide increased air flow to
the outer edges of the radiator core? Has anyone done this before?
Would it make a considerable difference?
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