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-   -   Tips on installing water temperature gauge (https://www.jeepforum.com/forum/f8/tips-installing-water-temperature-gauge-1070817/)

macg1777 07-16-2010 09:15 PM

Tips on installing water temperature gauge
 
Hello I was wondering if anyone had any tips on installing a water temperature gauge. I have an 85 CJ 7 4.2 Litre. I am not very confident on the factory gauge that it works as it should as it seems that it stays in the same spot most of the time and Jeep does not have an overflow tank. I plan on buying an Auto Meter gauge and installing that to get a more accurate reading of the temperature that I am running. Any help would be appreciated. Thanks

Slydeco 07-16-2010 09:39 PM

Water temp guage
 
Here,s what I used Hesco Inc. - High Performance Engine Service and it works great!!!

macg1777 07-16-2010 10:21 PM

Thanks Slydeco for the information!!!

CJ8Extreme 07-16-2010 10:56 PM

My question is why wouldn't you have an overflow tank? As for the factory gage, if you pull the lead wire off the back of the block/temp sensor and ground that wire when you turn your jeep on the temp gage will immediately peg itself to H if it is working properly. If not then the gage is not good. That's a quick way to test your gage if you think its not opperating properly.

Installation of a new gage really is pretty straight foward. Goodluck with the installation!

fredrok 07-16-2010 11:23 PM

There's a threaded hole on the block, driver's side just forward of the motor mount that accepts the aftermarket sending unit. No need to cobble it and blow $23.

82JeepCJ7 07-17-2010 12:17 AM

You can also remove one of the temperature sensors for all the emissions crap on the side of the intake and install a mechanical gauge there.

Bubba Ray 07-17-2010 04:07 AM

Are you going with a mechanical gauge?

Slydeco 07-17-2010 05:39 AM

Quote:

Originally Posted by fredrok (Post 9801517)
There's a threaded hole on the block, driver's side just forward of the motor mount that accepts the aftermarket sending unit. No need to cobble it and blow $23.

The fitting goes right beside the thermostat so you would get a more accurate reading,

macg1777 07-17-2010 08:23 AM

CJ 8 Extreme I purchased this vehicle not to long ago. There was no overflow tank installed but I might just install one. Is it really needed though? I want to install a mechanical gauge just to make sure that I am not running hot and damaging the engine. Thanks

CJ8Extreme 07-17-2010 10:22 AM

Ah I got ya, I've always needed my overflow tank :D. A cheap infared Thermometer from Autozone for 10 dollars will give you a quick reading on your temp under the hood. I keep one of those around in my glove box to help track down problems under the hood.

The last autometer gauge I bought just required finding a place to mount the probe for the gauge. I tappd a new hole for the probe near the thermostat as mentioned above. For ease you can probably use the orginal hole in the back of the block if the threads are the same, I can't vouch for that mounting spot because I did not use that one.

fredrok 07-17-2010 11:03 AM

Quote:

Originally Posted by Slydeco (Post 9802182)
The fitting goes right beside the thermostat so you would get a more accurate reading,

Splitting hairs really, but I wouldn't have the room on the boss that's on my t-stat housing to put one.

rickscj7boom 10-11-2011 01:14 AM

Quote:

Originally Posted by macg1777 (Post 9800936)
Hello I was wondering if anyone had any tips on installing a water temperature gauge. I have an 85 CJ 7 4.2 Litre. I am not very confident on the factory gauge that it works as it should as it seems that it stays in the same spot most of the time and Jeep does not have an overflow tank. I plan on buying an Auto Meter gauge and installing that to get a more accurate reading of the temperature that I am running. Any help would be appreciated. Thanks

Did you ever install your water temp gauge?? I have a 84 cj7 and it came with a aftermarket water temp gauge but the wiring is all messed up, i need help with connecting the gauge on the right way, what wire goes where kinda help? i can find any diagrams for that for some reason..

BagusJeep 10-11-2011 01:25 AM

Purple with tracer from the top of the sensor to the back of the temperature gauge.

The power was a shared red wire, there was one connection for the fuel and temperature gauge. It is unknown as to where your power is coming from for the new gauge but I suggest finding one that is linked to the IGN LPS fuse in the fuse box, probably red.

John Strenk 10-11-2011 03:11 AM

603 Attachment(s)
Quote:

Originally Posted by rickscj7boom (Post 12302669)
Did you ever install your water temp gauge?? I have a 84 cj7 and it came with a aftermarket water temp gauge but the wiring is all messed up, i need help with connecting the gauge on the right way, what wire goes where kinda help? i can find any diagrams for that for some reason..

Quote:

Originally Posted by BagusJeep (Post 12302692)
Purple with tracer from the top of the sensor to the back of the temperature gauge.

The power was a shared red wire, there was one connection for the fuel and temperature gauge. It is unknown as to where your power is coming from for the new gauge but I suggest finding one that is linked to the IGN LPS fuse in the fuse box, probably red.

Depends which aftermarket gauge he bought. Some still use the regulated supply from the fuel gauge.

rickscj7boom 10-11-2011 10:51 PM

Quote:

Originally Posted by John Strenk (Post 12302827)
Depends which aftermarket gauge he bought. Some still use the regulated supply from the fuel gauge.

hey guys, here is are few pics of the water temp gauge, obviously the sender goes to sensor on block, where do the others exactly go to?? where do i get the power from?? this is for a 1984 cj7...
http://i27.photobucket.com/albums/c1...t/IMAG0157.jpg
http://i27.photobucket.com/albums/c1...IMAG0155-1.jpg
http://i27.photobucket.com/albums/c1...IMAG0154-1.jpg


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