Probe for Differential

[Elite1]

I have dipricol gauges and have used the trans. temp probe provided, to probe my new Mag-hytech differential cover. I can't get the gauge to register... . I'm thinking I may have the wrong probe, does it need to be submerged in oil? Since it sits near the top and doesn't reach the oil... is this my problem, what is the solution??? Who sells the proper probe?





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[kbarlow]

Originally posted by Elite1

, does it need to be submerged in oil? Since it sits near the top and doesn't reach the oil... is this my problem,

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To answer both your questions "Yes and Yes"

 

[Deezul1]

I disagree, I ran mine in the fill plug on the stock cover and it worked fine and currently its in the trans fill plug and works fine. All you need is to be able to see abnormal temps as in when something bad is happening and the normal reading starts to increase. Try grounding the base of the sending unit and see what happens.

 

[Mad Bomber]

I'd say it's a bad ground

 

[Elite1]

Originally posted by Mad Bomber

I'd say it's a bad ground

I don't think it's the ground, because I can now get the needle to move slightly, to about the 110 deg. mark. Must have to be in the oil to get an accurate read. What are others with the Mag Hytech doing for a probe? Where do I buy a longer probe???

 

[Deezul1]

The rear end temp seldom gets very hot. Towing my TT on a 90 deg day at 70mph it only gets to 160 except on a long grade. The oil splashing on the probe will be the same temp as the oil in the bottom and will give you a close reading. With no load and cool temps out side it prolly isnt getting very warm.

 

[dresslered]

Since it sits near the top and doesn't reach the oil...

A few years ago I had a long talk with Roy regarding the location of the sensor. He says that when they were developing the cover, they actually had three separate temp sensors installed in the differential. The top location proved to be the best and most accurate as it gets the hot oil splashing off of the gears. This is where I monitor mine.



I suggest that you add a second probe so that you can monitor engine or transmission oil because the rear end really doesn't get very hot until it is really under load. Sounds like your Mag-hytec is doing exactly what it is suppose to--cool!

 

[Joseph Donnelly]

With a stock cover, I used a 3/4npt to 1/8 npt bushing and put the probe in the fill plug hole. With the Mag Hytec cover, it is in the top position above the ring gear. Both positions work.