Quote Originally Posted by sirkosero View Post
The brass thing appears to be a thermoswitch/sensor. Years ago, nagmodify pa ng radiator para makapagmount ng ganyan sa old old car ko when we decided to use an electric fan rather than clutch driven fan.

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Same case with me bro., years ago. But this is with an auxiliary fan to supplement the clutch fan.

So I opted for a manual switch to turn the fan on or off depending on the temp gauge reading...