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220 temp gauge
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amac View Drop Down
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Joined: 11 Nov 2010
Location: Kalona, IA
Points: 251 		Post Options Post Options   Thanks (0) Thanks(0)   Quote amac Quote  Post ReplyReply Direct Link To This Post Topic: 220 temp gauge
    Posted: 07 Apr 2020 at 8:14pm
Bought a new temp gauge for my 220. When I turn the ignition switch on the hand goes up to the middle of the white range. Running the tractor for ten minutes the gauge is in the red (hot) when my infrared thermometer says 150 degrees at the thermostat housing. My question is. Are there sending units with different ohm/resistance ratings? I know fuel gauges can be that way. If so I don’t know how to match a water temp sender with a gauge. Thanks for reading.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21841 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 07 Apr 2020 at 9:22pm
If you buy the gauge and the sender from AGCO, they are meant for each other.
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Acdiesel View Drop Down
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Joined: 15 Jun 2012
Location: Rochester Ohio
Points: 2576 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Acdiesel Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2020 at 10:53am
yes different ohms. on sending units. (buddy had same issue with his case 1370)
DJ's tractor parts has them # 70241249   sending unit  $39.50
D19 Diesel,D17 Diesel SER.3
2-D14, 2-D15 SER.II WF/NF
D15 SER.2 DIESEL
D12 SER.I, D10 Ser.II
2-720'S D21 Ser. II

Gmc,caterpillar
I'm a pharmacist (farm assist) with a PHD (post hole digger)
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Brian Jasper co. Ia View Drop Down
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Joined: 11 Sep 2009
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Points: 10508 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian Jasper co. Ia Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2020 at 10:07pm
There were several different ranges for gauges over the years in the automotive world. The ones I know are 9-73 ohms for Ford from the 60's to the 90's. 240-33 Stewart Warner, and 0-90 for GM. None of these are currently in use except for maybe Stewart Warner. I'm sure there are other ranges for other brands. Like Dr says, you need a gauge and sender intended to work together for it to read accurately.
"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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