Is there a means to adding a mechanical temperature gauge on a 727?
If not maybe an electrical one?
Thanks
If not maybe an electrical one?
Thanks
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727 temp gauge
- Thread starter moparmarks
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I would think an inline one with a T?
Good question!
Good question!
I run an electric temp gauge with the sensor in the back of the trans pan. Simple drill and tap for the fitting thread size and your good to go. I like electric over mechanical because when I service the transmission, I don’t have to worry about pulling the sender out of the pan,
I can just disconnect the wire from the pan. Plus I’ve had 3-4 mechanical water temp gauges fail in the past couple years in multiple cars. I even went electric for water temp gauge.
I can just disconnect the wire from the pan. Plus I’ve had 3-4 mechanical water temp gauges fail in the past couple years in multiple cars. I even went electric for water temp gauge.
I will be running both a transmission and engine oil temperature gauge in my Dakota Digital system. I added the electrical sensors directly to each pan with adapters that I welded in place. If I need to drop the pan, unplug the sensor.
Put a proper T on the cooler feed line with a temp gauge of your choice.
The cooler feed should be a good gauge to the trans temp.
The cooler feed should be a good gauge to the trans temp.
So it's either in-line or in the pan.
Many thanks guys.
Many thanks guys.
TrailBeast
AKA Mopars4us on Youtube
Just my experience is that anything on a T doesn’t read actual temperature.
(They always read low)
Do the pan as it’s much more accurate to the actual temp.
That’s my vote.
340six
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I was going to post the same thing, as I just grabbed this up on sale a few weeks ago. So wondered what the best location was to put it?
Was also wondering if put it inline with a before T the cooler? Or in Pan, and if in the pan where did you put it, I just don't want spaghetti under there with the exhaust
Was also wondering if put it inline with a before T the cooler? Or in Pan, and if in the pan where did you put it, I just don't want spaghetti under there with the exhaust
Pan is the best place to put it in my opinion.
My point of a "proper T" is to place the temp probe end in the flow of fluid not off to one side of the T.
But I agree the typical T does not measure accurately.
You could also clamp a thermocouple to the outside of the tube but be sure to insulate the area for a good foot around the probe.
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340six
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Sorry if I highjacked this thread, but think the info i asked for might be of help to Mark and other's.
What is the best place in the pan to install the fitting so it is out the way of exhaust etc. I have not looked at the fittings but assumed thet would go inside some but not enough to hit anything on the valve body, is that the case?
Also the pan I have only has 2 flat sides, if it needs to go on ribbed side I assumed grind/flat would be necessary?
Can you (or someone) circle where best location would be best to install the fitting.
I also had plans after exhaust goes in to install a cooler with an electric fan.
Was originally going to plum the gauge and cooler at same time. But now will put gauge in pan
So will ask about a cooler in a dedicated thread about it later. But wanted to mention it in case it matters.
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If you put the sensor in a tee, be certain the sensor is actually in the flowstream. Having it short of the flowstream WILL make it read low. Having it IN the flowstream in the trans fluid out line is actually a good place to read temp as it is fluid just picked up from the pan and run through the pump. The key is just making sure the sensor reaches the flowstream.
IMO, if you put it in a line, it should be in the line going TO the cooler and not coming from.
Lots of good info. I'll talk to my customer and see what he wants to do. This is an ex drag car that we are doing a pro-street with. We are leaving the race 727 and converter in it so a gauge would be a good idea.
It's going into the pan if I do it. He had already bought a mechanical gauge but I'm going to want an electric one. I've already ran the braided steel lines with AN fittings so I don't want to mees with that again plus I think the pan is a better option.
Thanks guys.
It's going into the pan if I do it. He had already bought a mechanical gauge but I'm going to want an electric one. I've already ran the braided steel lines with AN fittings so I don't want to mees with that again plus I think the pan is a better option.
Thanks guys.
340six, your good. 
The more info the better.
The more info the better.
Dakota Digital sent me a very nice looking Tee when I ordered the kit. Later I discussed adding a transmission temp gauge with Sean up at Dynamic. He said although the sensor in the Tee will read the temperature of the fluid coming out in the line going to the cooler, it’ll be more accurate with the sensor exposed to the fluid in the pan. So that’s where it is on my 42RH
The pan is really the best place for it.
Wow - what a car!! Love it!!
I would put it in the rear of the pan. The pan I use had a boss thick enough to drill and tap. You can either weld a bung in the back of the pan, or drill a hole and use a bulk head fitting if there isn’t enough aluminum to run a tap through.
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