| multiple coolent temp sensors [message #362973] |
Tue, 23 March 2021 10:37  |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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years back, I removed the christmas tree vacuum switch, and installed a analog coolent temp guage/sensor. it was very accurate and served me well for many years.
When I installed my EBL-EFI system, I pulled that sensor out, and left it dangling on the manifold with a zip tie. and used that spot to install the sensor for my EFI system.
I am now having some issues with the EBL whats up display, and without that the only temp display I have is the original dash gauge that is still located in the stock location.
I want to install the analog sensor again.. I have not removed the gauge itself. but I don't want to loose the stock sensor, and I can't loose the efi sensor. has anybody found a Y, or does a person just go buy a bunch of crappy brass parts and make some sort of T fitting? I don't want to make any higher of a spot for coolant to be off the manifold.
what happens if you T off he electrical sensor to feed both the EBL and the stock gauge? I am guessing that won't work right?
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| [GMCnet] Re: multiple coolent temp sensors [message #362975 is a reply to message #362973] |
Tue, 23 March 2021 10:58  |
stu@97381.com, Emery
Messages: 232
Registered: June 2020
Karma: 2
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Senior Member |
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You could also easily drill a hole into the manifold and tap it for your sensor.
My manifold had a round flat spot on the driver’s side front top which I drilled and tapped for a sensor a few years back when I installed a Digipanel.
Emery Stora
77 Kingsley
Frederick CO
> On Mar 23, 2021, at 9:38 AM, Jon Roche wrote:
>
> years back, I removed the christmas tree vacuum switch, and installed a analog coolent temp guage/sensor. it was very accurate and served me
> well for many years.
>
>
> When I installed my EBL-EFI system, I pulled that sensor out, and left it dangling on the manifold with a zip tie. and used that spot to install
> the sensor for my EFI system.
>
> I am now having some issues with the EBL whats up display, and without that the only temp display I have is the original dash gauge that is still
> located in the stock location.
>
>
> I want to install the analog sensor again.. I have not removed the gauge itself. but I don't want to loose the stock sensor, and I can't loose the
> efi sensor. has anybody found a Y, or does a person just go buy a bunch of crappy brass parts and make some sort of T fitting? I don't want to
> make any higher of a spot for coolant to be off the manifold.
>
> what happens if you T off he electrical sensor to feed both the EBL and the stock gauge? I am guessing that won't work right?
>
>
> --
> Jon Roche
> 75 palm beach
> EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
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> GMCnet mailing list
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| Re: multiple coolent temp sensors [message #362993 is a reply to message #362973] |
Tue, 23 March 2021 16:47 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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That sensor needs to ride in the coolant. I do not like the tee idea because any air passing by the tee may get trapped in the Tee and cause sensor errors.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: multiple coolent temp sensors [message #363014 is a reply to message #362973] |
Wed, 24 March 2021 09:02 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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I agree with Ken, and that is why I don't want to rig up some plumbing to T a couple sensors in. I also hate disturbing too much stock stuff, like having a temp gauge on the dash, even though it is kinda useless, to be dead. I will probably pull the stock sensor out to install the analog one, and that will get me an accurate reading of what I want to know off the analog gauge while I work on my whatsup display temp. There is sometimes I have not had the tablet on too, so it will be nice to have an accurate always on temp reading. I found the need for that when my fan clutch acted up last year.
I also am thinking now that if I can't find a way to get a reliable reading off the front of the manifold, I could put a sensor into the radiator for the dash.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: multiple coolent temp sensors [message #363022 is a reply to message #363014] |
Wed, 24 March 2021 12:08 |
Bill Van Vlack
Messages: 419
Registered: September 2015
Location: Guemes Island, Washington
Karma: 14
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Senior Member |
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With my future (warmer) weather install of the Mercedes fan, I'll be adding a sensor in the lower radiator hose using a fitting similar to this:
https://www.amazon.com/dp/B00RPF622I/
Bill Van Vlack
'76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid November 2015.
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