I had the head gaskets changed about five years ago. Head gaskets are OEM Ford and the studs are arp. Someone said that the coolant may be leaking from the back of the timing chain cover. The truck is not tuned. It is completely stock. Is it possible antifreeze can leak into the engine oil by any other means than a blown head gaskets? Can it leak from the back plate of the water pump? Any other area that it may leak into the engine please let me know thanks. And it has an EGR delete kit on it. The oil cooler was replaced about 8 years ago with and IPR brand.

 

How about the oil cooler internal has cracks?

 

That is what I'm hoping it is... I used a cheap after market one... that HAS TO BE THE PROBLEM .. at least I hope so... how do I check if it's the oil cooler?

 

Most of the time the oil contaminates the coolant because the oil pressure is higher than the coolant pressure. But when the engine is turned off, the coolant pressure remains, and the oil pressure does not.

That said, my first guess would be the front cover. Remove the water pump and inspect.

 

what should I be inspecting?

 

All of the International Powerstokes have had this issue, 7.3, 6.0, and 6.4. It can vary in appearance.










Counterman has a story about it a few years back, it's not engineering technical.

https://www.counterman.com/cavitatio...s-water-pumps/

 

This was a discussion over at TDS when I spent a lot of time there. The thread of course got locked. It doesn't answer any questions, I just thought it was an interesting discussion between two engineers involved in the cooling system.

AutoJim was the engineer that designed the two water pumps on the 6.0LHe left the auto industry and his PSD world behind.
Gooch was another good engineer who eventually got banned from the site.
The other member active in the thread was a Ford tech if I remember correctly.

Y2K may know where they are as he was active on the site at that time under another handle, Robin.

https://www.thedieselstop.com/thread...r-pumps.79283/

 

Just talked with a 6.0 mechanic... he said he has only seen 1 6.0 blow a head gasket after getting the head gasket done with ARP bolts.... so he is doubting that my head gaskets are blown... he said that it may be the front cover of the engine which he has seen IF green antifreeze is used. And I'm using Prestone green antifreeze. Since there is a delete on it... then its probably not the oil cooler. So I'm gonna tear down the front and remove the water pump and inspect the inside for any pitting.. I'll keep you posted and post pics as needed.

 

LOL - there are lots of 6.0's that blew head gaskets after ARP studs. AND, a head gasket leak doesn't generally send coolant into the oil.

Also, there are numerous ways you can cavitate the water pump and damage the front cover to the extent that you get coolant in the oil.

Never-the-less, it was good that he was able to convince you to inspect the front cover ........

 

These are the first drops that came out of oil pan... truck sitting for about a week... water heavier then oil so water should come out first.. oil looks very thin being cold and 15w 40 rotella.. slight green tinge to it too

 

Is there a video on how to remove front cover? I've replaced the HPOP and water pump and resealed injectors and replaced dummy plugs and viton orings on oil rail.. is the front cover more difficult?

 

No video that I know of, but the cover is not that hard to remove. The issue is replacing the front crankshaft seal and wear ring, which you need some tools for. Getting the wear ring off too can require some finesse. There is a simple tool to replace the wear ring only and a more complex tool for replacing both.

Front covers with all the gaskets, seal, and often oil pump run around $800.

 

Thin oil sounds more like diesel contamination than coolant ........

 

When I have had water in oil, the oil looked like a milkshake.
It tends to get mixed into an emulsion. Not nice distinct phases.

 

While this suggestion will delay the repair process, you should send a sample of your oil out to be analyzed. It will for sure tell you if you have coolant or diesel or whatever in your oil. I agree about coolant in the oil making it look like a chocolate milk shake.