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12-29-2018, 11:35 PM | #1 |
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Water Temperature Gauge
I added an aftermarket water temperature gauge under the dash of my Model A. I mean the type with a probe stud which I installed in a hole in the water inlet connection on the side of the block. It looks good but it's not working. Why not, I wonder? Could it be that it's made for a pressurized system and the Model A is non pressurized? That's the only reason I could think of.
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12-29-2018, 11:47 PM | #2 |
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Re: Water Temperature Gauge
It will work on any engine, any cooling system. That's not your problem.
You say it does not work. What does that mean? It never shows the engine getting warm? You have put it in the "cold water line" that goes from the bottom of the radiator to the engine inlet. This water will leave the radiator close to the temperature of the outside air. You don't say where you live, but I'm guessing it is winter there and cool. So this temperature gauge will not get very warm this time of year. In the summer it should read up around 90 degrees or so. It does not tell you the temperature of your engine, though. You need to instal it in the water outlet on the top of the engine, above the water pump, to get the engine temperature. Let us know what happens.
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Jim Cannon Former MAFCA Technical Director "Have a Model A day!" |
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12-29-2018, 11:56 PM | #3 |
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Re: Water Temperature Gauge
Remove the probe from water inlet, heat up some water to boiling on your stove, take the pan to your A and stick the probe in it. Should read the temp of the water. This will tell you if your gauge is working, and your issue is as Jim above describes.
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12-30-2018, 01:21 AM | #4 |
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Re: Water Temperature Gauge
A gauge works much better when installed in the water outlet. That tells you the water temperature as it leaves the block. Not after being cooled by the radiator.
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
12-30-2018, 09:47 AM | #5 |
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Re: Water Temperature Gauge
Here is an example of a Water Outlet you can purchase that makes mounting the probe easy.
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12-30-2018, 09:49 AM | #6 | |
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Re: Water Temperature Gauge
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Quote:
Picture did not work, here is a link, second up from bottom of page https://www.snydersantiqueauto.com/s...q=Water+outlet |
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12-30-2018, 10:58 AM | #7 |
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Re: Water Temperature Gauge
I just installed the APCO gauge and the outlet with the probe mount and it works very well.
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12-30-2018, 12:30 PM | #8 |
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Re: Water Temperature Gauge
I have found a lot of gauges do not read correctly. Check the gauge with a pan of hot water and a digital temp or regular gauge that you use for cooking. You may find a difference.
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12-30-2018, 05:08 PM | #9 |
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Re: Water Temperature Gauge
If you test the guage as outlined above and it doesn't show a reading, maybe you have cracked the tube running from the probe to the guage. If that has happened, go and buy a new one and be careful with it.
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12-30-2018, 06:59 PM | #10 |
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Re: Water Temperature Gauge
This is one in action.
Charlie Stephens Last edited by Charlie Stephens; 12-30-2018 at 07:06 PM. |
12-30-2018, 09:39 PM | #11 |
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Re: Water Temperature Gauge
For the life of me I can't uinderstand why they put the probe in the side of the neck where it makes access to the head stud difficult. I've always thought that was nearly the dumbest thing I have seen.
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I'm part of the only ever generation with an analogue childhood and a digital adulthood. |
12-30-2018, 10:33 PM | #12 |
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Re: Water Temperature Gauge
Put it in the top radiator hose. It can be done with simple pipe fittings.
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12-31-2018, 12:18 AM | #13 |
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Re: Water Temperature Gauge
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
12-31-2018, 12:44 AM | #14 |
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Re: Water Temperature Gauge
I used a motor meter for years. and it worked ok in the day light, on the long trip this year and running in temperatures of 112 f out side. Model A`s do not like pulling long hills. she got hot a few times, so when we got back home I put a temp gauge in the 160A and I will run with a gauge from now on.
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12-31-2018, 08:50 AM | #15 |
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Re: Water Temperature Gauge
Have installed as above in two A's --- Simple;- works perfect..
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'30 Coupe |
12-31-2018, 09:19 AM | #16 |
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Re: Water Temperature Gauge
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12-31-2018, 02:50 PM | #17 |
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Re: Water Temperature Gauge
Know this does not answer the question, but old Henry said something like this: "if it boils over, you know it is hot. Don't need a gauge"
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Fred Kroon 1929 Std Coupe 1929 Huckster |
12-31-2018, 03:14 PM | #18 |
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Re: Water Temperature Gauge
Never posted an attachment: first try !
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'30 Coupe |
12-31-2018, 04:36 PM | #19 |
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Re: Water Temperature Gauge
Thanks, I like that. Saves some greenbacks if you or someone you know has the tools for drilling and tapping the hole. Had not thought of this, was warned not to try modifying my existing outlet neck Too thin and they can crack or break. |
12-31-2018, 06:53 PM | #20 |
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Re: Water Temperature Gauge
Everyone is putting up posts for "James A" about his problem and he hasn't even checked back to see the results. I guess he's real busy.
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AL in NY |
12-31-2018, 07:04 PM | #21 |
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Re: Water Temperature Gauge
Don't fight the brazing / welding process.
Can be purchased from Mac's (Ecklers) Model A parts catalog for about $20. Think you could find same in Bratton's or Tam's as well.
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'30 Coupe |
01-01-2019, 08:14 AM | #22 |
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Re: Water Temperature Gauge
......or build yo sef one lik dis. ken
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01-01-2019, 11:22 AM | #23 |
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Re: Water Temperature Gauge
Stay away from this one, Speedway Part # 91065041 $25
Looks good but only works for about a year, have gone thru two of them...never again.
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Keith Shawnee OK '31 SW 160-B |
01-01-2019, 12:27 PM | #24 |
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Re: Water Temperature Gauge
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01-01-2019, 12:47 PM | #25 |
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Re: Water Temperature Gauge
I have that speedway one and it measures 20 degrees colder than actual.
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01-01-2019, 01:21 PM | #26 |
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Re: Water Temperature Gauge
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And I like the looks better. AutoMeter #1837 $51
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Keith Shawnee OK '31 SW 160-B |
01-01-2019, 01:39 PM | #27 |
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Re: Water Temperature Gauge
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01-01-2019, 02:07 PM | #28 | |
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Re: Water Temperature Gauge
Quote:
I too am running 6V pos ground
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Keith Shawnee OK '31 SW 160-B |
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01-01-2019, 02:35 PM | #29 |
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Re: Water Temperature Gauge
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01-01-2019, 04:11 PM | #30 |
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Re: Water Temperature Gauge
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01-01-2019, 04:26 PM | #31 |
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Re: Water Temperature Gauge
I'm sorry. Am I missing something. The Auto Meter 1837 sez it has a 12v sending unit included? Summitt Racing also claims it has an electrical sending unit. ($5 cheaper too!)
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The Master Cylinder Enjoying life at the beach in SoCal... |
01-01-2019, 04:37 PM | #32 | |
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Re: Water Temperature Gauge
Quote:
Now I am confused too. Perhaps there are 2 types, one mechanical like a meat thermometer, and a 2cd type working off the battery? |
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01-01-2019, 05:14 PM | #33 |
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Re: Water Temperature Gauge
Looking at the Auto Meter site, it appears their #1832 in the mechanical gauge. Which makes sense because I have found most mechanical gauges are 270° sweep. https://www.autometer.com/2-water-te...que-beige.html
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The Master Cylinder Enjoying life at the beach in SoCal... |
01-01-2019, 05:34 PM | #34 |
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Re: Water Temperature Gauge
IMO you can't beat Stewart-Warner gauges. May be more expensive, but they last a lifetime.
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AL in NY |
01-01-2019, 06:15 PM | #35 | |
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Re: Water Temperature Gauge
Quote:
This Auto Meter 1837 will not work on the A, back to square one. I'll have a talk with Santa about this too.
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Keith Shawnee OK '31 SW 160-B |
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01-01-2019, 09:40 PM | #36 |
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Re: Water Temperature Gauge
I am using the Rex-A-Co gauge from Bratton's. I like is period correct look. Personally I don't like flashy new modern looking things in my Model A.
https://www.brattons.com/temperature...-rex-a-co.html
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
01-01-2019, 10:02 PM | #37 |
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Re: Water Temperature Gauge
Some of the sending units won't leave much room for water flow.
https://i.ebayimg.com/images/g/JMkAA...KW/s-l1600.jpg https://i.ebayimg.com/images/g/zIwAA...RF-/s-l500.jpg |
01-02-2019, 09:53 AM | #38 |
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Re: Water Temperature Gauge
Never saw much need for a temp gauge but with a new $4000 engine installed it might be worth keeping a closer eye on things. The rex-a-co gauge from brattons looks good, are they reasonably accurate?
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01-02-2019, 10:28 AM | #39 | |
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Re: Water Temperature Gauge
Quote:
Temp gauges are very handy when you have a cooling system that is not working well. You can troubleshoot/try things and see if there is improvement. |
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01-07-2019, 12:24 AM | #40 |
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Re: Water Temperature Gauge
I have heard that the rex aco temp gauge has been problematic in the last few years .
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01-08-2019, 01:00 AM | #41 |
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Re: Water Temperature Gauge
I bought mine a little over a year ago and it works fine.
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
01-08-2019, 01:20 AM | #42 |
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Re: Water Temperature Gauge
I bought an Apco and used a new outlet with the hole in the side for the probe. It works great, BUT, the under the speedo bracket really sucks. Really hard to deal with the e-brake lever. Not only that, but the #**&!# repro chrome bezel that doesn't fit all that great to begin with is nearly impossible to get the gauge bracket screwed on. Grrr.
Anyone know of a reasonably inexpensive single gauge steering column mount? Mine is a '29. |
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01-08-2019, 05:04 AM | #43 | |
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Re: Water Temperature Gauge
Quote:
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I'm part of the only ever generation with an analogue childhood and a digital adulthood. Last edited by Synchro909; 01-08-2019 at 11:18 PM. |
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02-23-2020, 04:06 PM | #44 | |
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Re: Water Temperature Gauge
Quote:
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02-23-2020, 06:51 PM | #45 |
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Re: Water Temperature Gauge
I believe Mark Maron recommends the Vintage Precision tstat and temp gauge. It's a little pricey and I have not decided yet. Not real excited about the temp gauge in the rad hose.
http://www.vintageprecision.com/products/thermostat |
02-23-2020, 07:07 PM | #46 |
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Re: Water Temperature Gauge
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Last edited by Purdy Swoft; 02-23-2020 at 07:17 PM. |
02-23-2020, 08:21 PM | #47 |
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Re: Water Temperature Gauge
just finished installing a temp gauge yesterday, but before I hooked it up I tested it in a pot on the stove and it worked just fine. it is an APCO gauge.
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02-23-2020, 08:43 PM | #48 |
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Re: Water Temperature Gauge
James A... One more option that's out there
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05-17-2020, 07:26 PM | #49 |
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Re: Water Temperature Gauge
That is great how the sensor goes up under the hood and must be almost unnoticeable. I'm going to put in one that mounts on the goose neck and the sensor line is visible along the side of the head which will not look so "hot" (ouch, how corny).
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