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maxfly

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    246BB
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    M20

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  1. I have a problem with the oil temp and CHT gauges. Oil temp sometimes works, sometimes doesn't. When I turn power on, both gauge needles dive to the left. When I disconnect the senders from the gauges, they do the same thing. When I ground the sending units lead (off of the sending unit), they deflect all the way to the right. Yesterday I disconnected the sensor leads from the back of the gauges with the same results. I removed the temp bulbs and tested resistance change with a heat gun and they change resistance so I believe they are working. What shop do you recommend I send the gauges to for repair?
  2. I have a problem with the oil temp and CHT gauges. Oil temp sometimes works, sometimes doesn't. When I turn power on, both gauge needles dive to the left. When I disconnect the sender for the oil temp, it does the same thing. When I ground the sending units lead (off of the sending unit), it deflects all the way to the right. Cyl. head gauge does the same thing but when hooked up, it's dead all the time. Both the sending units show resistance. Whats up and what to check next?
  3. maxfly

    Oil & Cht gauges

    I have a problem with the oil temp and CHT gauges. Oil temp sometimes works, sometimes doesn't. When I turn power on, both gauge needles dive to the left. When I disconnect the sender for the oil temp, it does the same thing. When I ground the sending units lead (off of the sending unit), it deflects all the way to the right. Cyl. head gauge does the same thing but when hooked up, it's dead all the time. Both the sending units show resistance. Whats up and what to check next?
  4. I have a problem with the oil temp and CHT gauges. Oil temp sometimes works, sometimes doesn't. When I turn power on, both gauge needles dive to the left. When I disconnect the sender for the oil temp, it does the same thing. When I ground the sending units lead (off of the sending unit), it deflects all the way to the right. Cyl. head gauge does the same thing but when hooked up, it's dead all the time. Both the sending units show resistance. Whats up and what to check next?
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