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  1. K

    Adding temperature sender to '97 Merc 40

    I agree, there is no substitute for good maintenance however, I'd like to have some warning of impending doom if something does go wrong (clogged intake, impeller failure, etc.). If I can't get the original overheat warning working, a pressure gauge seems like a good option, as long as I keep an...
  2. K

    Adding temperature sender to '97 Merc 40

    I like the idea of a buzzer. I had been looking for a pressure gauge with a configurable alarm setpoint but did not find anything at a reasonable price. Is there a particular sensor/buzzer combo you can recommend or suggest?
  3. K

    Adding temperature sender to '97 Merc 40

    Hello, I have a '97 Mercury 40hp (s/n 0D128799) and the warning module has decided to act up. I'd like to switch to pre-mix (another topic) and add a temperature sender/gauge. There is a brass plug on the head where I can add the sender but am wondering about the wiring. The remote wiring...
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