Phil EF Posted January 19, 2020 Report Share Posted January 19, 2020 Know this question is a shot in the dark but.....I’m trying to find an oil temp sensor with the following characteristics that will fit a 1/8” NPT hole. Installed a JPI 900 which required the original 5/8” hole by the oil cooler on the TSIO-360 and would like to maintain the original gauge for redundancy and the alternate hole is the smaller size. Quote Link to comment Share on other sites More sharing options...
carusoam Posted January 20, 2020 Report Share Posted January 20, 2020 Are you using the 900 as primary? It probably needs to use the same hole as the original equipment or risk all the associated ranges and redline not being accurate... The oil temp being read has much to do with the location it is being read from... When you call JPI, what do they tell you about buying This sensor? Sounds like you may be trying to use a primary instrument in a non-primary installation... in that case... the 830(?) is lower cost if you retain all the original gauges... PP thoughts only, not a mechanic... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
Phil EF Posted January 20, 2020 Author Report Share Posted January 20, 2020 JPI uses the hole for the original since it is now primary. They have a sensor for the secondary hole used only with the 830 but resistance values are not compatible with the factory gauge. Quote Link to comment Share on other sites More sharing options...
carusoam Posted January 21, 2020 Report Share Posted January 21, 2020 The secondary hole isn’t compatible with the ships gauge/sensor? choices... 1) Modify hole... 2) get new thermistor... see what aircraft spruce has for shapes and resistance ranges... 3) Toss out the idea of using the ship’s gauges as back-ups... 4) Why use an old technology like a thermistor anyways... inaccurate on its best days, appropriate for old analog gages... barely... they croak after 2k hrs... (mine did) Check with your mechanic... PP thoughts only, I am not a mechanic... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
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