1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

12 valve cooling question

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Old 11-04-2009, 07:04 PM
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Default 12 valve cooling question

well for some reason i just cant stop these radiator problems ive been having. my fan has taken out my radiator twice now because the chevy engine bay just isnt as deep as the dodge.

well after all these problems i have given up on making the dodge radiator fit at 400 dollars a piece. i had a camaro radiator on the side of my house sitting so i threw it in. its the same width so it fits between the intercooler. its about 3 inches shorter and 3/4" skinner so it fits much better with no chance of the fan hitting.

my question is will this radiator do ok for daily driving. im not going to be towing much with this truck i have others for that purpose. but do you guys think the radiator will keep the truck running cool enough for normal driving? thanks all
 
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Old 11-04-2009, 07:37 PM
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Drive it and find out. I would think it would get ot towing or sitting at idle
 
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Old 11-04-2009, 07:41 PM
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How about swapping the fan? There is a 2 speed electric fan from teh V6 Taurus that pulls CRAZY air. They can be found in junk yards for like $20. You can tell its a 2 speed by the 3 wires. Ground, Low, and High.
 
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Old 11-04-2009, 08:10 PM
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Originally Posted by RSWORDS
How about swapping the fan? There is a 2 speed electric fan from teh V6 Taurus that pulls CRAZY air. They can be found in junk yards for like $20. You can tell its a 2 speed by the 3 wires. Ground, Low, and High.
do you know about how deep the electric fan is. i only have like 2 1/2" between harmonic balancer and radiator
 
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Old 11-04-2009, 08:12 PM
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if you only have 2 1/2" how is your stock fan fitting at all?
 
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Old 11-04-2009, 08:27 PM
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it barely fits, by like 1/2" at the most. do all the radiators from these have those 2 wires that wrap around the radiator? that is what caused the problem one time it hit that bent the blade and sent it through the radiator.

i dont know how other guys who have done the conversion have got so much room in the bay ive done everything i can to get more room. i cant sit the intercooler or radiator any further forward at all. thats why im wondering about a little smaller radiator
 
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Old 11-04-2009, 08:35 PM
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Any good pics of what your working with?

You need a fan from a 88-95 Taurus/Mercury w/ 3.8L V6 (make sure it has 3 wires in the plug). They are capable of up to 3900CFM and are about 5" deep... Pretty low profile for an electric fan. They pull up to 130 amps at startup but once running the only pull around 40 amps on high afterwards. Most people run a 75amp relay and 10 gauge wire. I used to run one on my Yota and it was bad ***. Dont think I ever used the high speed. One wire is ground, one is high, and one is low. If you power up the low and high at the same time the fan will run slower then on the low setting and might burn up the motor.

This one is from a Mark VIII, its a little bit larger shroud.
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Old 11-04-2009, 08:46 PM
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Looking at your pics I think when you remove the stock fan you will have plenty of room. As far as the radiator, I woudl not go smaller unless it was teh absolute last resort. These engine make ALOT of heat.
 

Last edited by RSWORDS; 11-04-2009 at 08:49 PM.
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Old 11-04-2009, 08:52 PM
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i will go look for one of those probably tomorrow or so. do you by chance have the width and height measurement so i can try and see how things will fit. and it is only 5" deep at the center? how deep is it at the bottom near the crank pulley
 
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Old 11-05-2009, 04:53 PM
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Not sure on that. I'll see what I can find.
 


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