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Problems with the Factory Engine Oil Cooler; 6.0L Power Stroke
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00:00:04.000 great welcome to another installment of 00:00:07.05900:00:07.069 our resource videos on the six liter 00:00:08.77000:00:08.780 diesel we are dedicated to educating the 00:00:11.14000:00:11.150 680 diesel community on how to diagnose 00:00:13.42000:00:13.430 and bulletproof the six liter engine 00:00:15.49000:00:15.500 four years of dependable service today 00:00:17.71000:00:17.720 we're going to talk about the original 00:00:19.06000:00:19.070 equipment engine oil cooler on the six 00:00:21.22000:00:21.230 liter to better understand the problems 00:00:23.31900:00:23.329 with that part first we have to 00:00:24.79000:00:24.800 understand how it works first of all 00:00:27.93900:00:27.949 it's located directly beneath your 00:00:29.62000:00:29.630 engine oil filter on top of the engine 00:00:31.26900:00:31.279 underneath the intake manifold it's 00:00:34.00000:00:34.010 hidden underneath the oil filter in the 00:00:35.50000:00:35.510 valley of the engine well hard to access 00:00:37.78000:00:37.790 or service it's a pretty simple design 00:00:39.79000:00:39.800 it's called the stack plate heat 00:00:41.62000:00:41.630 exchanger there are large pathways that 00:00:44.05000:00:44.060 the oil flows through there are 00:00:45.82000:00:45.830 alternating smaller pathways that the 00:00:47.50000:00:47.510 coolant flows through it's important to 00:00:49.69000:00:49.700 note that the two fluids are never 00:00:51.07000:00:51.080 intended to mix together that's bad news 00:00:53.41000:00:53.420 for the six liter diesel 00:00:54.88000:00:54.890 how it works is the cold coolant flows 00:00:57.16000:00:57.170 in then flows through the adjacent 00:00:59.17000:00:59.180 channels and exits out of the hot 00:01:01.03000:01:01.040 coolant side into the EGR cooler the hot 00:01:04.14900:01:04.159 oil comes in from the engine flow sure 00:01:06.37000:01:06.380 the oil channels adjacent to the cold 00:01:08.10900:01:08.119 coolant and flows out and goes through 00:01:10.14900:01:10.159 the rest of the engine while this oil 00:01:12.31000:01:12.320 cooler is effective when it's fully 00:01:13.74900:01:13.759 operational there are two critical 00:01:15.84900:01:15.859 failures that can occur the first 00:01:18.19000:01:18.200 failure is when one of the layers 00:01:19.56900:01:19.579 separating the oil and coolant fails 00:01:21.34000:01:21.350 allowing higher pressure oil to flood 00:01:23.70900:01:23.719 into and mix with the lower pressure 00:01:26.13900:01:26.149 engine coolant this has the effect of 00:01:28.53900:01:28.549 filling your cooling system with oil 00:01:30.09900:01:30.109 which becomes a thick Vaseline like 00:01:32.73900:01:32.749 emulsion that can be very difficult to 00:01:34.51000:01:34.520 remove the second critical failure with 00:01:37.14900:01:37.159 the oil cooler recursion is smaller 00:01:38.83000:01:38.840 coolant pathways these pathways are 00:01:41.31900:01:41.329 smaller than the oil pathways and allow 00:01:43.14900:01:43.159 for cold coolant to take the heat away 00:01:44.67900:01:44.689 from the adjacent or pathways with time 00:01:47.52900:01:47.539 and miles whether you're towing heavy or 00:01:49.74900:01:49.759 just cruising any debris or solids that 00:01:52.30000:01:52.310 you have suspended in your coolant can 00:01:53.83000:01:53.840 become trapped and will slowly and 00:01:55.95900:01:55.969 eventually restrict the coolant flowing 00:01:57.76000:01:57.770 through the oil cooler this reduced 00:02:00.24900:02:00.259 coolant flow leads to five issues the 00:02:02.85900:02:02.869 first issue is that it blocks the 00:02:04.23900:02:04.249 coolant flow going through the oil 00:02:05.73900:02:05.749 cooler which means it stops the coolant 00:02:07.80900:02:07.819 flow from getting out of the oil cooler 00:02:09.46000:02:09.470 and into the EGR cooler located 00:02:11.77000:02:11.780 downstream the other four issues are 00:02:14.25900:02:14.269 engine oil related keep in mind when 00:02:16.50900:02:16.519 this cold coolant flows through the 00:02:17.86000:02:17.870 engine oil cooler it cools down your 00:02:19.89900:02:19.909 engine oil that's the whole purpose of 00:02:21.88000:02:21.890 the engine oil cooler after all however 00:02:24.33900:02:24.349 when that cold coolant stops the oil 00:02:26.74000:02:26.750 keeps flowing but now it comes out as 00:02:28.83900:02:28.849 hot engine oil not cold engine oil 00:02:31.22900:02:31.239 remember when engine oil gets hot it 00:02:33.81900:02:33.829 also gets thinner as its viscosity 00:02:35.53000:02:35.540 changes this means that hot engine oil 00:02:38.28900:02:38.299 doesn't cool components as well nor does 00:02:40.60000:02:40.610 it lubricate components as well as cool 00:02:42.58000:02:42.590 engine oil does that hot engine oil 00:02:45.30900:02:45.319 feeds four vital engine systems and 00:02:47.28900:02:47.299 components these components include your 00:02:49.50900:02:49.519 main bearings lifters etc obviously we 00:02:52.44900:02:52.459 want to ensure that your engine has 00:02:53.67900:02:53.689 these components well oiled beyond the 00:02:56.25900:02:56.269 main engine components though the 00:02:58.08900:02:58.099 six-seater also uses oil to cool and 00:03:00.16000:03:00.170 lubricate the turbo in addition the 00:03:02.50000:03:02.510 engine oil also runs through the high 00:03:04.17900:03:04.189 pressure oil pump before the oil flows 00:03:06.42900:03:06.439 to all eight of the fuel injectors if 00:03:08.77000:03:08.780 anything happens to your turbo 00:03:10.30000:03:10.310 high-pressure oil pump or your injectors 00:03:12.55000:03:12.560 you're looking at an expensive failure 00:03:14.89000:03:14.900 which is why your oil cooler is so vital 00:03:17.55000:03:17.560 when you think about and understand all 00:03:20.11000:03:20.120 the components that the engine oil 00:03:21.61000:03:21.620 cooler protects the thick 00:03:23.11000:03:23.120 cool engine oil it becomes easy to 00:03:25.66000:03:25.670 understand the costly expense to repair 00:03:28.03000:03:28.040 the components that could fail with a 00:03:30.00900:03:30.019 marginal oil crew turbo fuel injectors 00:03:33.13000:03:33.140 high pressure oil pump etc or all 00:03:35.74000:03:35.750 components that can be affected by a 00:03:37.42000:03:37.430 restricted oil cooler if you found that 00:03:40.59900:03:40.609 video helpful go ahead and give it a 00:03:42.19000:03:42.200 like and subscribe to our YouTube 00:03:43.56900:03:43.579 channel you'll receive updates is we add 00:03:45.75900:03:45.769 similar videos in the future
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