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Coolant Temp gauge scale
I need to order a new engine water temp gauge. The one that is in there was replaced at some point and doesn’t match. I have the standard Datcon (Thanks Don) gauges with the orange lines on the face. Can someone with this type tell me if it is suppose to be a 100-240 degree or 100-280 degree gauge? Appreciate the help. Jeff
Jeff and Lindsay
91 Marathon XL -
7 Replies
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Mine is 140-320
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Thank you Don. I will try to get that one and change the sender if needed.
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Mine is 100-280. Since red line is 220 I doubt it makes any difference what the range is as long as it exceeds 220.
Jeff and Lindsay
91 Marathon XL -
Thanks Bill. I ordered the 100-280 gauge. The range that Don has is special order. I have gathered that the closer to the center of the sweep you can get normal operating range the more accurate it will be. 185 should be close to dead center. Thanks again.
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One thing XL and likely early H3 model gauges did not have is a gauge marking to either indicate safe upper limit (red line) or a safe range marking.
On my 87 and 97 there were no indications and unless an owner actually knew what they should be be studying various sources of information the only way anyone would know something was going wrong would be via a dash panel light.
One good project would be to put a dot of paint or maybe a small version of the dot of paper like from a three ring punch. The best protection however is for normal, correct indications to become locked in memory and then any deviations, no matter how small become something to monitor.
My XLII does have gauge markings so at least Prevost realized the benefit of them.
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Jon wrote: “The best protection however is for normal, correct indications to become locked in memory”
Has Jon forgotten that’s much easier said than done?
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Shame on you, Dick. Unless you only few all glass cockpits steam gauge planes used needles and dials. When monitoring the engine gauges it did not take long to know where to see oil pressure CHT, EGT, MP, voltage, oil temp, etc.
I am sure you watched your vacuum gauge, fuel gauges (and mentally compared that to your time airborne) and then not only knew what was normal on the gauges, your ears would instanty alert you of a change in sound or a noise.
Our buses talk to us in the same way, and if we spend more time paying attention to the bus, and less to the smart phone we almost always know when something has changed and might need attention.
BTW, the guys that installed the digital readouts for everything either spent most flight time watching readouts bounce around digitally, or went blind watching way too much info and quit watching after a while.
Call me analog man.
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