I would worry about upgrading your main cooler before just adding more restriction. What cooler do you have now both as an auxiliary and as the main cooler mounted on the engine?
Oil cooling
- Thread starter super diesel
- Start date
I would worry about upgrading your main cooler before just adding more restriction. What cooler do you have now both as an auxiliary and as the main cooler mounted on the engine?
I have the stock 04 cooler on the block, it has been rebuilt. Aux is a FLD-DB30618 Fluidyne Oil Cooler -12 hose through out. I could go with a 2020 cooler but then my mocal plate will not fit. I have not seen of anyone making a sandwich plate for the 2020. I know James made an adapter for his and I might have to look into that.
It is mounted in front right below the bumper. Like slehead"s in this thread: https://www.duramaxdiesels.com/forum/showthread.php?t=40544&highlight=sledhead
Air dams top bottom and both sides. I don't see anyway for it to get more air.
That cooler isn't very large, it has a 5.875" tall x 21" wide x 3" deep core. That is only 123.375 square inches (less than 1 square foot of exposure). With that said, you shouldn't be overheating the oil that bad with your setup. Have you verified the temp probe is accurate?
Check post #1120.
I will check this and get back too you.
One other point is oil pressure has not dropped below 48 psi @ 2800 rpm so this makes me feel better.
10-4, I would assume that the probe is giving a false reading. If your oil temps really were that high I would expect it to also result in higher coolant temps.
besides the fact that there very well could be a sensor issue, i would put money you are not getting enough air flow through the cooler...
on thick core coolers, it creates alot of wind resistance. if you are running the skid plate like Sleds, that creates more restriction for air flow as it must come through the cooler and then damn ear dead heads half way up into the skid plate.
you will also have to be at min going over 60mph for any kind of air to really flow through it (atleast what it can get), might need more speed due to the restrictions.
when i swapped from my 3" thick core from killer bee and no fans and went to the derale cooler and spal fan in the exact same spot, i dropped another 10-20* of oil temps just because of consistant air flow and what i would guess to be more than the old cooler saw. the killer bee cooler should have out cooled the derale any day of the week but the air flow wasnt there unless i was going 70mph. I also had stuff behind the cooler the air would hit and again create resistance to flow through the cooler. Having a fan as a puller helps negate that but no air restrictions behind the fan help it achieve its full CFM.
id start with making sure the sensor is good and maybe moving it to the engine oil cooler on the "after cooler" side so you have good comparison numbers against what most read as well. The temp can vary a good amount from pan to pre cooler to post cooler to post aftermarket cooler as josh and a few others have shown over the years.
Will do. At least with this virus crap I have time off to deal with it, now if it will just stop raining.
I'm with James on his assessment, lack of air flow across the cooler. I'm not even sure you could get an electric fans that would be big enough to really pull enough air to make much difference. Thick cores like that are really hard on electric fans (especially fans that would be small enough to fit on that cooler). Your best bet would be to figure out a way to build a shroud behind the cooler and duct it into the factory fan shroud or buy a bigger cooler that you could mount somewhere else with a fan big enough to move a substantial amount of air.
Nope, Mike and i were even wondering about him not too long ago.... i really hope hes ok....
I'm pricing a 2020 oil cooler for a guy, so I wanted to put all the part numbers together in one post that a person would need to do the swap. Here they are:
Cooler: 12701592
Elbow: 12675428
Cooler to elbow gasket: 12676826
Elbow to block gasket: 97192667
Coolant pipe to cooler o-ring: 94011702
Water pump to coolant pipe gasket: 12635594
Long oil cooler bolts: 11588694
Cooler to elbow bolt: 11548820
I was able to reuse the short oil cooler to block bolts on my LBZ, but I believe James said his were just a touch too long on his LB7. You might be able to shim them with a flat washer or you can look up the part number for the new bolts if you don't want to do that. On the elbow, I reused the two bolts from the old cooler, but I dug around and found a matching third bolt for the new one. That's why I included that part number.
Cooler: 12701592
Elbow: 12675428
Cooler to elbow gasket: 12676826
Elbow to block gasket: 97192667
Coolant pipe to cooler o-ring: 94011702
Water pump to coolant pipe gasket: 12635594
Long oil cooler bolts: 11588694
Cooler to elbow bolt: 11548820
I was able to reuse the short oil cooler to block bolts on my LBZ, but I believe James said his were just a touch too long on his LB7. You might be able to shim them with a flat washer or you can look up the part number for the new bolts if you don't want to do that. On the elbow, I reused the two bolts from the old cooler, but I dug around and found a matching third bolt for the new one. That's why I included that part number.
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Wondering if anyone has looked at this sandwich adapter for the 2020 cooler conversion. It seems this Setrab adaptor has the same filter thread 19-STP76-22-180-22... let me know your thoughts
Need diameters. 2020 cooler has a significantly smaller sealing surface diameter. Setrab doesn’t list that.
Here is what I got from Setrab:
It appears our 19-SPT76-22-180-22 will work great with the 2020 Duramax.
The 2020 Duramax OEM oil filter o-ring is: OD 72mm / ID 63mm and our o-ring is: OD 69mm / ID 60mm
I ordered one to look at it, just want to make sure it will actually flow the full amount for -12 fittings
It appears our 19-SPT76-22-180-22 will work great with the 2020 Duramax.
The 2020 Duramax OEM oil filter o-ring is: OD 72mm / ID 63mm and our o-ring is: OD 69mm / ID 60mm
I ordered one to look at it, just want to make sure it will actually flow the full amount for -12 fittings
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that should work for sure. there is no need to run an external oil cooler on a 2020 duramax but if you are retrofitting the 2020 cooler to an older truck, this is perfect. just have to run the 2020 oil filter as well.