| fortyford | -- 06-28-2024 @ 8:08 PM |
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The temp gauge on my stock 1952 F-1 reads close to "H" while driving?I have checked temp at heads and top of radiator and getting about 170 degrees?Shop manual states that to check gauge 1.5 volts to gauge it should read mid scale.I used a "D" battery and gauge went to middle.There are adjustment on this gauge on back but have no idea which one does what?These temp gauges do not seem to be very accurate.The truck has never boiled over or had over heating problems it just makes me concerned when gauge reads close to "H" all the time!
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| carcrazy | -- 06-29-2024 @ 12:19 AM |
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Sometimes the stock gauges leave something to be desired as far as accuracy goes. If you are really concerned about your engine running too hot, you can buy a quality Stewart- Warner mechanical water temperature gauge with mounting bracket and mount it beneath the instrument panel. This message was edited by carcrazy on 6-29-24 @ 12:19 AM
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| fortyford | -- 06-29-2024 @ 12:00 PM |
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Does the modern gauge have to be 6 volt?What is good temp gauge that will work with the correct adapter for head?Do I need one for each head or just use the the double contact side? Will something like this work? https://www.speedwaymotors.com/Speedway-Mechanical-Water-Temperature-Gauge-2-1-16-Inch-Black,139830.html This message was edited by fortyford on 6-29-24 @ 12:40 PM
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| carcrazy | -- 06-29-2024 @ 12:53 PM |
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Get a mechanical Stewart-Warner water temperature gauge like Speedway Motors part #665-82326. You can install the bulb sender for it into either cylinder head, it goes into the hole which previously had the electrical sending unit for the original stock temperature gauge. If you want to monitor the temperature of the coolant in both heads, you will have to use two gauges. I would only use one gauge to monitor the temperature in the hotter of the two cylinder heads. To determine which head runs hotter, run the engine at idle until the engine is up to operating temperature as determined by both thermostats being fully opened. You can determine when they are open by holding the coolant hoses with your bare hand that go to the top of the radiator. Once at operating temperature, use an infrared laser thermometer to determine the temperature of each cylinder head. Install the bulb of your new mechanical gauge into the hotter of the two heads. You will have to determine how long of a capillary tube you need for your application. If you will be using a 6V electrical system, order a 6V light bulb for your illuminated gauge. https://www.speedwaymotors.com/Stewart-Warner-Deluxe-Water-Temperature-Gauge-Mechanical-2-1-16-Inch,7150.html
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| carcrazy | -- 06-29-2024 @ 12:59 PM |
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Yes the gauge you show should work. I would use the more expensive S-W gauge as I believe they are more accurate.
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| fortyford | -- 06-29-2024 @ 1:37 PM |
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Thanks carcrazy for all your help.I will certainly feel more comfortable with an accurate set up.
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| 37RAGTOPMAN | -- 07-01-2024 @ 3:49 PM |
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running hot; did you check the temp sending units, ? on the heads, maybe check them, they are most likely the problem. make sure there is no corosion, on the treads, and make sure the engine is check the ground cable hope this helps. 37 Ragtopman Maine
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| fortyford | -- 07-16-2024 @ 3:58 PM |
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What size fitting would I need for flathead ?Would SW gauge by chance come with correct size?
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| carcrazy | -- 07-16-2024 @ 10:10 PM |
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The SW gauge should come with several adapter fittings to allow the sender bulb to be mounted within the cylinder head. If it does not, you can purchase the proper adapter fitting at your local auto parts store.
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