lmorris Posted February 16, 2011 Share Posted February 16, 2011 Thats right, you read it correctly. 51000 KM and the main cooling system is full of oil. Assuming oil cooler(have request into hotline), has anyone seen others like this? Quote Link to comment Share on other sites More sharing options...
Adam_Dodson Posted February 16, 2011 Share Posted February 16, 2011 Is this a new 6.7? Quote Link to comment Share on other sites More sharing options...
lmorris Posted February 16, 2011 Author Share Posted February 16, 2011 Is this a new 6.7? Yes it is. Thankfully the oil cooler requires minimal disassembly to remove. Anyone know of a way to actually leak test an oil cooler to verify it has failed? Kind of like we would do with EGR coolers? Edit: Came up with a way to test it. Going to drain the cooling system, remove the coolant hoses from the oil cooler, top up the engine oil and run the engine to see if oil comes out where the coolant is supposed to go in. Will post results. Quote Link to comment Share on other sites More sharing options...
deezul Posted February 16, 2011 Share Posted February 16, 2011 Could it possibly be an issue with turbocharger gasket (under the turbo) allowing oil and coolant to mix? Quote Link to comment Share on other sites More sharing options...
lmorris Posted February 16, 2011 Author Share Posted February 16, 2011 I beleive there is no direct path between those passages under the turbo. There is a valley between the two that allow the fluid to drain out into the valley. But i may be wrong Edit: Confirmed oil cooler leaking. With cooler eliminated from cooling system, I was able to run the engine till oil started coming out of the coolant ports. Quote Link to comment Share on other sites More sharing options...
mchan68 Posted February 17, 2011 Share Posted February 17, 2011 Confirmed oil cooler leaking. With cooler eliminated from cooling system, I was able to run the engine till oil started coming out of the coolant ports.Pictures are worth a 1000 words. Quote Link to comment Share on other sites More sharing options...
Steve Mutter Posted February 17, 2011 Share Posted February 17, 2011 Flushing the cooling system should be fun (Thats sarcasm). On the up side like you said it should not be that hard to change out unlike the 6.0 or 6.4 Quote Link to comment Share on other sites More sharing options...
DieselD Posted February 18, 2011 Share Posted February 18, 2011 I really hate oil contamination jobs, such a huge pita to get all that oil from the coolant system Quote Link to comment Share on other sites More sharing options...
cbriggs Posted February 19, 2011 Share Posted February 19, 2011 Nearly impossible. Such a complex cooling system on these compared to a 6.0 as well. Yikes.... Quote Link to comment Share on other sites More sharing options...
lmorris Posted February 24, 2011 Author Share Posted February 24, 2011 The process has 130 steps. 4 run throughs with simple green. 1 with VC9. Then numourous fresh water flushings. Time will tell if we got it all out. Funny thing is this guy was such a prick about the fact that it took time to get the parts and repair the truck, that he is no longer welcome at our dealership. Quote Link to comment Share on other sites More sharing options...
JSHTech Posted February 26, 2011 Share Posted February 26, 2011 The process has 130 steps. 4 run throughs with simple green. 1 with VC9. Then numourous fresh water flushings. Time will tell if we got it all out. Funny thing is this guy was such a prick about the fact that it took time to get the parts and repair the truck, that he is no longer welcome at our dealership. Sounds miserable. Were you required to replace all the rubber hoses in the system also? Quote Link to comment Share on other sites More sharing options...
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