Oil cooling
- Thread starter super diesel
- Start date
Running a low speed moderate load point on the dyno at work I see about a 15 degree difference between oil sump temp (pan temp) and oil gallery temp pre cooler. FYI
If I had my new L5P cooler sitting here I would test it. Lol, hoping this is an oil cooler issue...
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See, shoulda paid up and you woulda had mine! :roflmao: :hug: That sucks richard, i hope so as well
galley temp higher than pan or vise versa?
Front left galley hole right under the water pump outlet. Also keep in mind these oil temps are taken while keeping the coolant temp at a constant temperature. If coolant temp goes up things change rather quickly.
He was saying it was hard to tell if the cooler made much difference and almost seemed higher temp overall but he had just moved the temp sensor to the pan as well. We both were under the impression we’d see cooler temps before the oil pump than after pressurizing it again into a hot oil galley.
Lol, Allen has it so it hasnt made it to me yet. I have to finish his LLY trans first.See, shoulda paid up and you woulda had mine!:hug: That sucks richard, i hope so as well
galley temp higher than pan or vise versa?
:hug: That sucks richard, i hope so as wellBased on what Josh was seeing and the oil pressure correlation, I believe the pan is showing about 15-20 degrees lower than the original temp sensor location on his setup. I have slept since then so don't hold me to it. I have an external cooler on the LBZ and have been monitoring the temps since day 1 on this build. I was planning on swapping to the new L5P cooler and no external to see how it does and then adding the external as a test dummy.
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Oh for sure. When I was at the tech center, if you wanted to run 230+ coolant you needed an aux cooler to keep pan temp under 275F. Even with how "good" everyone thinks the Cummins ISB coolers are
There is a flat spot in the oil cooler supply galley. Would it hurt to just drill that and tap it?
unless you plan to take it fully apart and clean the whole thing out after, i wouldnt. being its before the filter, you have some margin of safety though. you just dont want anything getting into the post filter galley.
if you guys want to send me a stock plug, ill throw it on the lathe and build you an adapter out of it. This will be strictly for those who've been on this site and contributing (basically aint doing it for free for newbs). getting the truck out of the garage free'd some time up finally :roflmao: 
need your sensor along with it and would be best if you send me a pic of the sensor prior so i can make sure there is enough room to make it work based on hex size.
need your sensor along with it and would be best if you send me a pic of the sensor prior so i can make sure there is enough room to make it work based on hex size.
if you guys want to send me a stock plug, ill throw it on the lathe and build you an adapter out of it. This will be strictly for those who've been on this site and contributing (basically aint doing it for free for newbs). getting the truck out of the garage free'd some time up finally :roflmao:
need your sensor along with it and would be best if you send me a pic of the sensor prior so i can make sure there is enough room to make it work based on hex size.
So here’s what I done. I haven’t had time to finish it but the new cooler is bolted to the block. I didn’t separate the housings but I took the plug out directly above where I drilled and tapped and stuffed it tight with a paper towel. Then carefully and slowly drilled and tapped. Cleaned with brake clean then shoved a 20 gauge shot gun brush to clean any straggling metal pieces out. Removed the paper towel and sprayed compressed air straight down and again with brake clean. Did all of this MAKING SURE TO NEVER tip the cooler in a way that would allow any fragments to make its way into the cooler core. I figured with the care that I took plus being pre filter I shouldn’t have any issues. If you choose this be sure to do it far down enough that you sensor won’t make contact with the front differential. Also my strong suggestion is to use a 1/8 to 1/4 pipe bushing and tap the housing a half turn at a time to insure that the tip of your probe is just barely in the galley as not to impede flow at all!
James I really wanted to mill out the center of the plug but after measuring my hex is only a few thousandths smaller than the OD of the plugs and I would have compromised the integrity of the plug itself making it fit. Hope this helps anyone. I am still trying to find out the “style” of this plug to maybe find a different option for those in the future to do this.
there is plenty of meat to recess the allen key and then punch in the temp sensor while still having room to grab the sensor with a wrench and tighten. if you look at my pics, thats how mine is done.