6.7 Liter Dodge Cummins 07.5-12 Discussion of 6.7 Liter Dodge Cummins Diesels

6.7 cummins oil in coolant and coolant in oil

Thread Tools
 
Search this Thread
 
  #1  
Old 12-09-2014, 07:52 PM
coors_man_2005's Avatar
Diesel Bomber
Thread Starter
Join Date: Apr 2010
Location: oklahoma
Posts: 1,363
Received 123 Likes on 108 Posts
Default 6.7 cummins oil in coolant and coolant in oil

I noticed a while back I had oil in my water. I pulled the oil cooler and made sure it was all sealed. I couldn't say for sure if the gasket was leaking. But I did pressure the cooler up underwater and it had no leaks. The truck has been parked since. It has the head o ringed Vulcan gasket. With 425 studs. Today I was messing with it pulled the valve cover. Noticed some moisture but just looked like condensation. But I was curious so I pulled the drain plug. It had a little antifreeze come out. I would say about maybe enough to cover the bottom of a qt jug if that much. Oil is not milky in the pan or under the valve cover. You guys think that it's from when I pulled the oil cooler. It mixed then possibly? Or how else can I narrow this down to where it's coming from. I noticed my hg was seaping a bit. So I'm going to retorque and see if that seals the hg but let me know the thoughts. I don't want to pull the head till I know where this oil is mixing from. Unless I have too. Thanks for the advice guys.
 
  #2  
Old 12-10-2014, 03:09 PM
Motorops's Avatar
FormerVendor
Join Date: Jul 2014
Posts: 136
Likes: 0
Received 21 Likes on 20 Posts
Default

Typically the oil cooler will leak under pressure you will not be able to see it just visually, it will need to be tested.

If that comes back good, only other option would be the headgasket. Have you noticed the truck using coolant? It's odd its a mix in both. Oil pressure is higher than Coolant pressure.
 
  #3  
Old 12-10-2014, 10:15 PM
coors_man_2005's Avatar
Diesel Bomber
Thread Starter
Join Date: Apr 2010
Location: oklahoma
Posts: 1,363
Received 123 Likes on 108 Posts
Default

Only thing I noticed was the overflow up and down and bubbling when shut off like a typically bad hg. But now that you say using antifreeze. I forgot one time I had a temp spike and I noticed it was low. And had to add antifreez .
 
  #4  
Old 12-10-2014, 10:52 PM
Bigg Redd's Avatar
Diesel Bomber
Join Date: Oct 2010
Location: TEXAS
Posts: 2,448
Received 310 Likes on 299 Posts
Default

That dont sound too good bro.
 
  #5  
Old 12-11-2014, 12:10 PM
coors_man_2005's Avatar
Diesel Bomber
Thread Starter
Join Date: Apr 2010
Location: oklahoma
Posts: 1,363
Received 123 Likes on 108 Posts
Default

Yep joy joy may have to sell the Harley on this one lmao
 
  #6  
Old 12-15-2014, 10:23 AM
Bigg Redd's Avatar
Diesel Bomber
Join Date: Oct 2010
Location: TEXAS
Posts: 2,448
Received 310 Likes on 299 Posts
Default

Originally Posted by coors_man_2005
Yep joy joy may have to sell the Harley on this one lmao
Ooooh man, that would be one hell of a sacrifice..................enough to make a grown man cry!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tobyk
Dodge Truck and Cummins Turbo Diesel Forum
0
07-07-2015 08:01 PM
Bull Grunt
Ford Powerstroke 03-07 6.0L
4
05-15-2015 09:55 AM
stevenb86
5.9 Liter CR Dodge Cummins 03-07
2
03-08-2015 10:02 AM
97f-250
Ford Powerstroke 94-98 7.3L
0
11-23-2014 08:08 PM
gmcmanis
Chevy/GMC Duramax 01-04 LB7
0
11-09-2014 04:49 PM



Quick Reply: 6.7 cummins oil in coolant and coolant in oil



All times are GMT -5. The time now is 12:28 PM.