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#1 |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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I’m replacing an old temperature gauge with a new one, and I am using a Vintage Precision water neck so that I can have a thermostat closer to the engine head. However, this connection is going to leak. The brass adapter snugs into the water neck base fine, but the temperature gauge nut that “pins” the temperature probe to the adapter in the water neck bottoms out before the probe is sealed to the brass adapter.
![]() I can spin the probe by its aluminum end after the temperature gauge nut is fully tightened. How can I get around this issue? Sent from my iPhone using Tapatalk |
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#2 |
Senior Member
Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 1,371
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Different adaptor or a longer nut?
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"The more things change, the more they stay the same." |
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#3 |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
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![]() I don’t suppose a longer nut is an option. If I take it off of the temperature gauge assembly, it will destroy the temperature gauge. I’m “green as grass” on this. Do adapters come in varying depths (for lack of a better term)? Sent from my iPhone using Tapatalk |
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#4 |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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Would an “O” ring work?
Sent from my iPhone using Tapatalk |
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#5 |
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Join Date: May 2010
Location: Concord CA
Posts: 637
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When I installed mine (with a mechanical gauge like yours) I had to turn the thermostat to find the position where it would then sit correctly in the housing.
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#6 |
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Join Date: Jul 2018
Location: Spring Grove, Illinois
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"The more things change, the more they stay the same." |
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#7 | |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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![]() Quote:
I checked the thermostat before I installed the water neck. There is enough clearance between the probe and the thermostat. (The vendor cuts a slice off of the thermostat that comes with the water neck.) Sent from my iPhone using Tapatalk |
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#8 |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
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#9 |
Senior Member
Join Date: May 2016
Location: Glide, Oregon
Posts: 1,339
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Did the adapter come with the gauge? If so it should work. What brand gauge? I always use SW gauges.
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Ruth "Sometimes you really DO need to read the whole thread" Last edited by Ruth; 06-12-2020 at 07:47 PM. |
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#10 |
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Join Date: Feb 2011
Location: Lincoln, Nebraska
Posts: 1,909
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That's what I would try. Should fill the gap just fine. With it being an non pressurized system I would think it would hold up.
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Dave / Lincoln Nebraska |
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#11 |
Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,751
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Maybe something like this would work, they come in different sizes.
https://www.amazon.com/Parker-Degree.../dp/B077NHZ98C |
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#12 |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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I found an alternative adapter at O’Reilly’s.
![]() The one on the left came with the water neck, and the inside threads don’t go all the way to the bottom. The one on the right is threaded a little deeper, but it is not a tight seal either. I found a couple of “O” rings at NAPA, and they seemed to work for the time being. (I was able to warm up the engine while the car is still on jack stands, and I didn’t see a leak.) However, I’m not convinced this is a long term fix. Once the car gets under load on the highway, it may leak. I’ll called Speedway Motors (the temperature gauge supplier), but they are “experiencing high call volumes.” The automated call attendant eventually hung up on me after 24 minutes of being on hold. Sent from my iPhone using Tapatalk |
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#13 |
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Join Date: May 2016
Location: Glide, Oregon
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I would try to find out why it is not fitting before using an O ring. I asked earlier, didn't an adapter come with the gauge? They usually do.
IF you are going to go the O ring route, check on McmMaster-Carr (or similar for the best O ring for your application). https://www.mcmaster.com/o-rings This is the gauge I use. https://www.speedwaymotors.com/Stewa...Inch,7150.html As you can see it comes with the proper adapter fitting.
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Ruth "Sometimes you really DO need to read the whole thread" Last edited by Ruth; 06-12-2020 at 11:53 PM. |
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#14 | |
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Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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![]() Quote:
Sorry, I didn’t see your post. This is my gauge. ![]() The adapter came with the water spout, not the temperature gauge. There is a second port in the water neck that would accept the probe without the adapter, but the probe is too long and hits the thermostat. Sent from my iPhone using Tapatalk |
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#15 | |
Senior Member
Join Date: May 2016
Location: Glide, Oregon
Posts: 1,339
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Ruth "Sometimes you really DO need to read the whole thread" Last edited by Ruth; 06-13-2020 at 12:01 AM. Reason: Spelling |
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#16 | |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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![]() Quote:
Yes, the 1/2” adapter is included (you cannot remove it without destroying the temperature gauge because the temperature gauge has ether sealed inside it and cannot be taken apart), and it does not fit the adapter that was included from the water neck vendor, and it doesn’t fit (very well) in the adapter I purchased locally yesterday. As I posted earlier, I tried to contact Speedway, but call volumes are high. Sent from my iPhone using Tapatalk |
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#17 |
Senior Member
Join Date: May 2010
Location: new britain,ct 06052
Posts: 9,390
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Did you try contacting Vintage Precision??
Paul in CT |
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#18 | |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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![]() Quote:
Maybe I’m incorrect. “Adapter” threw me. There was nothing in the package except the temperature gauge and a mount kit for the dash. It sounds like you think a suitable adapter should have come with the gauge, if I’m reading your post correctly. Nothing like that came in the package. Sent from my iPhone using Tapatalk |
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#19 |
Senior Member
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 1,908
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![]() Not yet. I discovered this after what I presumed to business hours. That is one of the issues with buying parts from two vendors at the same time. It didn’t occur to me that there might be fitment issues when I placed the separate orders. This is not high technology stuff, it should just work. Alas, it doesn’t. It’s more like dueling with a computer and a software vendor. We get those kinds of issues at work. I work in IT. lol Sent from my iPhone using Tapatalk |
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#20 |
Senior Member
Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 745
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Just get yourself a “O” ring.
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