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Go Back   Dodge Cummins Diesel Forum > 2nd Gen. Dodge Cummins 94-98 12V Forums > 94-98 Powertrain
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Old 09-13-2010, 12:22 PM   #13 (permalink)
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I used that 440 Dodge thermostat and gave up after 3 crappy units. The stock one went back in with no issues.

You should be trying to put very little heat into the tank and as much as you can into the fuel to the IP (usually inline). A warm tank can start to grow things, even in diesel.
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Old 09-13-2010, 12:35 PM   #14 (permalink)
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And the 24v thermostat is the wrong size.

I stand corrected. Note my post below with link. 03 up is a different size.
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Last edited by MotorCityMadman; 09-16-2010 at 09:12 AM.
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Old 09-13-2010, 12:44 PM   #15 (permalink)
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I am planning to run electric fans on my truck. I figured it would help to keep temperature fluctuations to a minimum. I, too, have wondered if there is any detriment to having them switch on at 195 versus 185. The thermostat that was mentioned sounds like an excellent option. I'll have to keep that in mind if/when I get around to doing a WVO conversion.
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Old 09-13-2010, 12:53 PM   #16 (permalink)
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Quote:
Originally Posted by JTraik View Post
...copper coil in the tank and concentric lines, all with engine coolant...
Stay AWAY from copper! I made that mistake in the beginning (thanks a lot, greasecar, with your cheap materials and non-committal remedying of mistakes) and to this day have lots of problems with poly accumulation in-tank. Do NOT use a copper coil in the tank. Air+Copper+Hot VO = polymerization/quickly clogged filters and a poor running system. Perpetuated by the below statement...

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....A warm tank can start to grow things, even in diesel.
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Old 09-13-2010, 12:54 PM   #17 (permalink)
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There is an engineering term know as: Maximum Thermal Efficiency. It is the temperature at which the greated amount of power can be generated. I believe that when this engine was developed, that factor was taken into consideration.

The auto industry has gradually raised the operating temps over the years in an effort to gain the most from an engine. 180 used to be the norm, now new cars operate at 200/210 degrees.

Offered for your consideration.
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Old 09-13-2010, 07:18 PM   #18 (permalink)
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I would like to run a hotter thermostat but I have yet to find a quality piece that fits the 12v.
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Old 09-13-2010, 08:37 PM   #19 (permalink)
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You might try the two small holes in the thermo. Will pick it up a few degrees.
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Old 09-14-2010, 08:24 AM   #20 (permalink)
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Quote:
Originally Posted by MotorCityMadman View Post
I used that 440 Dodge thermostat and gave up after 3 crappy units. The stock one went back in with no issues.

You should be trying to put very little heat into the tank and as much as you can into the fuel to the IP (usually inline). A warm tank can start to grow things, even in diesel.
add killem to your fuel tanks (wvo and diesel) and that will keep the things that grow in check
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Old 09-14-2010, 08:59 AM   #21 (permalink)
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Quote:
Originally Posted by MotorCityMadman View Post
I used that 440 Dodge thermostat and gave up after 3 crappy units. The stock one went back in with no issues.

You should be trying to put very little heat into the tank and as much as you can into the fuel to the IP (usually inline). A warm tank can start to grow things, even in diesel.
Those have got the be the manliest creatures ever. I wish I could LIVE IN DIESEL
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Old 09-14-2010, 09:03 AM   #22 (permalink)
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good one...
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Old 09-16-2010, 08:53 AM   #23 (permalink)
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Just found a 190 for the 12v. A little pricey.

Dodge Cummins 190 Degree Thermostat with O Rings
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Old 09-16-2010, 08:58 AM   #24 (permalink)
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Has anyone else noticed that the thermo is forced open a little bit when you install it? My stock one and the new one I put on last winter both were like that. Why is that? I don't need that much coolant circulating all the time in the winter.
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