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Engine water temp sender location. [message #322334]

Sat, 19 August 2017 09:50

Scott Nutter

Messages: 781
Registered: January 2015
Location: Houston/San Diego

Karma: 4

Senior Member

I am in the process of hooking up a new engine water temperature gauge.
The manufacture, maxxtow, recommends to put the sending unit in the radiator. I have the aluminum radiator and it has a port to accept the sending unit.
Our stock system has the sending unit in the intake manifold.

Is there a advantage in having the sending unit in the rad? Is the intake manifold still the best location?
Or run the new gauge with the probe in the rad, and leave the stock gauge as is?

Opinions? Recommendations?
Thanks, Scott

Scott Nutter 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, Dave Lenzi super duty mid axle disc brakes, tankless water heater, everything Lenzi. Alex Ferrera installed MSD Atomic EFI Houston, Texas

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Re: [GMCnet] Engine water temp sender location. [message #322340 is a reply to message #322334]

Sat, 19 August 2017 11:19

Emery Stora

Messages: 959
Registered: January 2011

Karma: 4

Senior Member

Scott
I would use the existing location in the intake manifold next to the thermostat. You really want to measure the heat of the engine, not the radiator.
I believe the port you are referring to is likely the low water level port. If you get low on water you would not register anything on your temperature gauge.

Emery Stora
77 Kingsley
Frederick, CO

> On Aug 19, 2017, at 8:50 AM, Scott Nutter wrote:
>
> I am in the process of hooking up a new engine water temperature gauge.
> The manufacture, maxxtow, recommends to put the sending unit in the radiator. I have the aluminum radiator and it has a port to accept the sending
> unit.
> Our stock system has the sending unit in the intake manifold.
>
> Is there a advantage in having the sending unit in the rad? Is the intake manifold still the best location?
> Or run the new gauge with the probe in the rad, and leave the stock gauge as is?
>
> Opinions? Recommendations?
> Thanks, Scott
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything Lenzi.
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Re: [GMCnet] Engine water temp sender location. [message #322361 is a reply to message #322334]

Sat, 19 August 2017 15:51

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Scott,

Double Trouble has:

1) Aluminum radiator
2) OEM water temp gauge
3) Secondary water temp gauge
4) Digi-Panel

All hooked up and working fine, in fact the LED bars on the Digi-Panel mirror the Secondary water temp gauge readings.

Unfortunately my little grey cells are not and I can't remember how I hooked them all up. If you can wait until I get back to
Houston (Sept 4th) I'll check and let you know.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Scott Nutter
Sent: Sunday, August 20, 2017 12:50 AM
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Engine water temp sender location.

I am in the process of hooking up a new engine water temperature gauge.
The manufacture, maxxtow, recommends to put the sending unit in the radiator. I have the aluminum radiator and it has a port to
accept the sending
unit.
Our stock system has the sending unit in the intake manifold.

Is there a advantage in having the sending unit in the rad? Is the intake manifold still the best location?
Or run the new gauge with the probe in the rad, and leave the stock gauge as is?

Opinions? Recommendations?
Thanks, Scott
--
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, tankless water heater, everything
Lenzi.
Houston, Texas

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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Re: Engine water temp sender location. [message #322368 is a reply to message #322334]

Sat, 19 August 2017 17:55

Scott Nutter

Messages: 781
Registered: January 2015
Location: Houston/San Diego

Karma: 4

Senior Member

Thanks guys,
All good points. I think I will keep the sensor in the original position in the intake manifold.
And Emery is right, the port in the rad is for the low coolant sensor.

My deciding factor for the stock location is to also keep a eye on the thermostat..

Thanks for all the suggestions!
Scott.

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