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Old 01-10-2019, 04:47 AM   #1
KMAT
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700r4 cooling line diagram

Can someone please tell me the correct way to run the cooling lines from my 700R4 to the radiator which have the side Inlet and Outlet ports and then to an external transmission cooler in front of that and back the transmission please thank you
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Old 01-10-2019, 10:49 AM   #2
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Re: 700r4 cooling line diagram

Here you go...https://679artists.com/350-turbo-tra...grams/#content
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Old 01-10-2019, 04:32 PM   #3
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Re: 700r4 cooling line diagram

Interesting, the transmission cooler connections on your radiator come out the side of the tank. I've never seen one like that. Can you post us a photo?

Here is a link that may help you.

http://67-72chevytrucks.com/vboard/s...d.php?t=513643
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Old 01-10-2019, 10:08 PM   #4
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Re: 700r4 cooling line diagram

I usually totally bypass the radiator system and plumb directly into the aux cooler....

Why heat the oil up in the radiator to then try and cool it in the aux cooler?

Block to fitting ports in the radiator...

Just my opinion...

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Old 01-11-2019, 01:03 AM   #5
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Re: 700r4 cooling line diagram

UHHHMMM No the radiator helps cool it down that's why it was run there in the first place. Then the aux. cools it down some more
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Old 01-11-2019, 05:18 AM   #6
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Re: 700r4 cooling line diagram

I work at a transmission shop and we bypass the radiator and go straight out to the auxiliary cooler. The transmission coolers we use have a bypass that allows the fluid to reach operating temperature by running through only two channels in the cooler. Once it's warmed up the entire cooler is used.
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Old 01-11-2019, 07:49 AM   #7
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Thumbs up Re: 700r4 cooling line diagram

Doesn't matter how you run the lines as long as it stay's below 200* according to GM. If it starts getting over 200* it starts breaking down the fluid and in turn starts breaking down the transmission. Doesn't matter which line is return because it's just a loop. The trans pump's the fluid out one and in the other so it don't matter.
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Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
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Old 01-11-2019, 09:04 AM   #8
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Re: 700r4 cooling line diagram

Quote:
Originally Posted by Jramirez67c10 View Post
I work at a transmission shop and we bypass the radiator and go straight out to the auxiliary cooler. The transmission coolers we use have a bypass that allows the fluid to reach operating temperature by running through only two channels in the cooler. Once it's warmed up the entire cooler is used.
That is interesting. Do you know what the bypass temperatures are? Is there a part number I could research? Thanks in advance for the information.
Oh and welcome aboard Jramirez67c10

Here is a recent discussion about where to place the cooler in the loop.

http://67-72chevytrucks.com/vboard/s...d.php?t=779001
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Old 01-11-2019, 12:11 PM   #9
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Re: 700r4 cooling line diagram

The cooler is a Hayden By-Pass Transmission Cooler. Not sure what temperatures it opens at. On most newer trucks we can access transmission data with a scanner. There's usually a transmission temperature line and most of them sit around 190. We've had customers who tow with diesel truck say that the temp gauge never exceed 215 when pulling a heavy load up a large grade. I hope the info helps.
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Old 01-11-2019, 01:15 PM   #10
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Re: 700r4 cooling line diagram

Quote:
Originally Posted by Jramirez67c10 View Post
The cooler is a Hayden By-Pass Transmission Cooler. Not sure what temperatures it opens at. On most newer trucks we can access transmission data with a scanner. There's usually a transmission temperature line and most of them sit around 190. We've had customers who tow with diesel truck say that the temp gauge never exceed 215 when pulling a heavy load up a large grade. I hope the info helps.
Thanks that does help.
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Old 01-11-2019, 01:59 PM   #11
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Re: 700r4 cooling line diagram

Advance Adapters Flexible Transmission Cooler Lines 23-1501

These and this cooler

Derale Electra-Cool Remote Fluid Coolers 13720

Fan comes on with the high speed fan bypass the radiator altogether.
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Old 01-11-2019, 02:04 PM   #12
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Re: 700r4 cooling line diagram

Here's how I routed mine but I didn't count on the dirt dobbers plugging the output line from the trans. I haven't tested it yet to see if the cooked fluid hurt the trans. I agree with Andy on the routing.


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Old 01-11-2019, 02:27 PM   #13
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Re: 700r4 cooling line diagram

.
Install one of these just in front of your AUX cooler. This will prevent the fluid from being cooled until it reaches 180 degrees ( good for all weather environments, but especially for cold ones )...

https://www.summitracing.com/tx/part...5792/overview/
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Old 01-11-2019, 02:30 PM   #14
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Re: 700r4 cooling line diagram

.
Some say it's also a good idea to install an aux filter after the radiator and before the aux cooler...

https://www.summitracing.com/tx/part...oling-products
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Old 01-11-2019, 07:03 PM   #15
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Thumbs up Re: 700r4 cooling line diagram

If I lived further north I would add this to mine.




I drove my truck this morning and was watching my temp on the transmission. It stayed at 175* the whole time it was 33* outside. I like it like that. The motor temp was 200*
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Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
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Old 01-12-2019, 12:59 AM   #16
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Re: 700r4 cooling line diagram

If I lived further north I would add this to mine.

If you lived further north you would park it in the winter like the rest of us.


I like the Made in USA stamp on the product. VV
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Old 01-12-2019, 09:46 AM   #17
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Talking Re: 700r4 cooling line diagram

Quote:
Originally Posted by VetteVet View Post
If I lived further north I would add this to mine.

If you lived further north you would park it in the winter like the rest of us.


I like the Made in USA stamp on the product. VV

That sir is a correct statement!
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Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
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Old 01-12-2019, 01:22 PM   #18
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Re: 700r4 cooling line diagram

yeah what vettevet said I do like the idea of the filter
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Old 01-12-2019, 05:59 PM   #19
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Re: 700r4 cooling line diagram

Would you put the temp sensor in the output line leaving the trans? And also if you use a large cooler why wouldn't you bypass the radiator so that the trans wouldn't add heat to the engine? Especially if using the thermostat like above.
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Old 01-12-2019, 07:23 PM   #20
Andy4639
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Thumbs up Re: 700r4 cooling line diagram

Quote:
Originally Posted by Rick Bollinger View Post
Would you put the temp sensor in the output line leaving the trans? And also if you use a large cooler why wouldn't you bypass the radiator so that the trans wouldn't add heat to the engine? Especially if using the thermostat like above.
I have the temp senor in the pan of my 64 SS Impala just because it was the easiest place to put it. But GM also puts the temp probe in the pan also on the newer electric transmissions as in my 4L80E. I know because I have it hooked up and use it all the time in my 71 C-10.
My thinking is as long as I know the total degree of the fluid after it's been through the transmission and it's less than 200* as GM likes it to be I'm good.
If the temp starts climbing I know something is wrong.

As far as the aux cooler goes yes if you can get one big enough to handle it on it's own then go for it. I had limited space for mine so it is what it is and as far adding heat if everything is working then it shouldn't add muh of any heat.
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2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
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Old 01-12-2019, 08:14 PM   #21
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Re: 700r4 cooling line diagram

On the 700 trans I purchased from Bow Tie Overdrive years ago they had it set up so the sensor is in the pan. Generally reads around 180*. As stated before running a Hayden cooler with an RV application. Plumbed to the radiator and then aux cooler on the way back to the trans.
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Old 01-12-2019, 08:39 PM   #22
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Re: 700r4 cooling line diagram

I have an aluminum deep finned pan and was worried that it might give a false low reading but it would be the easiest place to put one.
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