Engine/Transmission (1998.5 - 2002) Heat Exchanger Removal!!!

[justinp20012500]

Well, coming home from taking the wife out to lunch. (yes I am a good boy) The stupid cooler line that comes from the trans and goes into the heat exchanger started leaking AGAIN. This is the second one that I have put on. So being the rational person I am, I jump out of the truck and take a sawzall to the two lines. It made me feel so much better. I just got the twins to fit with it in its original place.



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This is the finished product on the transmission fluid side... I used some 1/2" high temp/high heat transmission cooler line and a ridge maker deally. (So the line doesn't pop off)



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Here is the coolant line that goes into the heat exchanger.



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I went to my trusty pile of cummins parts and got the single outlet deally to replace the dual outlet deally.



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This is the single in place of the dual.



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And here is the heat exchanger in its proper place. Soon to be garbage can.

 

[rweis]

I had an email series with BK about 2 years ago and he was adamant about NOT taking the water heat exchanger out.



Bob Weis

 

[Guest]

Way to go D*CK, you didnt right hook the dog this time did you?



I hope the twinners fit well!!!



Stupid heat exchanger IN YO FACE!!!

 

[justinp20012500]

Originally posted by rweis

I had an email series with BK about 2 years ago and he was adamant about NOT taking the water heat exchanger out.



Bob Weis

Will you send me those emails.



Makes me wonder why a genius like piers is telling every one with auto that they have to remove the heat exchanger in order to put twins on?

 

[rweis]

Well,



Maybe you have to remove the water heat exchanger for twins for the room to mount them.



The gist of the emails is the water heat exchanger does two things. Adds heat to the transmission fluid or removes heat from the transmission fluid. Obviously a no brainer, but depending on where you live you may need to add heat in the winter time.



I live in the south and added a H7B aux transmission cooler before the water heat exchanger. Guys in the north may have a problem with viscosity of the transmission fluid in the winter time and the heat exchanger may add heat so the fluid will flow better.



You can of course call DTT or go to the web site and ask the question. You will get a response regardless if you have a DTT transmission or not.



I would go back to Piers depending on your specific weather conditions and readdress the issue. Piers has GREAT knowledge and is a reliable source for sure. Just maybe ask the specific question of winter transmission fluid operation.



Did you add different transmission cooling to replace the water heat exchanger operation?



Bob Weis

 

[justinp20012500]

Well I was feeling kinda guilty about the job I did, so went to the hydraulic supply store and had them give me the "right hose" for the job. It didn't leak the first time, but I decided to be an over achiever today.



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This is my new matco flare kit. Works great!!



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Here is the hydraulic line with the clamp. No leaks here!!!!

 

[justinp20012500]

Originally posted by rweis

Well,



Maybe you have to remove the water heat exchanger for twins for the room to mount them.



The gist of the emails is the water heat exchanger does two things. Adds heat to the transmission fluid or removes heat from the transmission fluid. Obviously a no brainer, but depending on where you live you may need to add heat in the winter time.



I live in the south and added a H7B aux transmission cooler before the water heat exchanger. Guys in the north may have a problem with viscosity of the transmission fluid in the winter time and the heat exchanger may add heat so the fluid will flow better.



You can of course call DTT or go to the web site and ask the question. You will get a response regardless if you have a DTT transmission or not.



I would go back to Piers depending on your specific weather conditions and readdress the issue. Piers has GREAT knowledge and is a reliable source for sure. Just maybe ask the specific question of winter transmission fluid operation.



Did you add different transmission cooling to replace the water heat exchanger operation?



Bob Weis

I have not explored the different transmission cooler options yet. I am still looking. I have not seen really high temps, I am running the mag high tec double deep.