milky oil in a volvo md7 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
 Not a Member? 

Diesel This is a forum dedicated to diesel engines and their applicable accessories.


Reply
 
LinkBack Thread Tools
  #1  
Old 02-03-2010
huguley3's Avatar
Member
 
Join Date: May 2007
Location: Stuart FL
Posts: 236
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
huguley3 is on a distinguished road
milky oil in a volvo md7

We were going to go out this last week and when I checked the oil it was milky. So the trip got scrapped and now I am trying to figure out what is wrong.

I have changed the oil and filter so the oil is no longer milky but it still will not start. My planned next step is to get a compression tester and see if it is getting compression. While I have the injectors out I am going to have those checked as well.

I am hoping it is not a crack and maybe just a head gasket or something accessible like that. Actually I am hoping the problem never occurs again and the engine runs flawlessly for another ten years...

Anyone have any other suggestions? A new diesel is pretty much out.
__________________
--

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
30' Islander Bahama
Reply With Quote Share with Facebook
  #2  
Old 02-03-2010
Member
 
Join Date: Aug 2009
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
flatracker is on a distinguished road
Milky Oil

Milky oil can be from only one thing. Water in the oil. Lots of places this can come from. Head gasket, cracked head, bad exh. manifold come to mind. Some engines have the raw water pump engine driven, as opposed to a belt, and the engine driven water pumps can have a bad seal on the shaft that drives them. These are some of the most common problems. One thing you need to do is narrow things down before you start pulling parts. The hit and miss procedure can get expensive and still not cure the problem.
__________________
Dream like you will live forever. Live like you will die tomorrow. ( James Dean )
Reply With Quote Share with Facebook
  #3  
Old 02-03-2010
timebandit's Avatar
Senior Member
 
Join Date: Sep 2002
Posts: 928
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
timebandit is on a distinguished road
Water in the oil.
__________________
Rick
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Mac 25
Copernicus
Southern California
I am not a prejudice racist sexist bigot. I just hate stupid people.
Reply With Quote Share with Facebook
  #4  
Old 02-03-2010
Senior Member
 
Join Date: Oct 2009
Location: Gloucester, MA
Posts: 586
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 5
klem is on a distinguished road
As stated above, you have water in your oil. Chances are that you have a headgasket problem but it makes sense to do some diagnosis first. I would start with a compression and leakdown test.

If you don't have a compression tester, one thing that you can do is put a section of clear tubing in the cooling water line after the engine and observe whether it is filling with bubbles (combustion gases). If it is indeed the head gasket, the bubbles should stop once you hit the decompression lever. If there are no bubbles, there is still a chance that you have a blown headgasket between the cooling and oil passages and not the cylinder but this is quite rare.

If your headgasket checks out, I would start checking things like your water pump, cooling passages, etc.

Good luck.
Reply With Quote Share with Facebook
  #5  
Old 02-03-2010
Senior Member
 
Join Date: Feb 2006
Location: Western MA & Maine
Posts: 157
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Shortman is on a distinguished road
If you still have some of the drain oil, Blackstone Labs Blackstone Labs could probably test it for you & tell you if it has antifreeze, saltwater, or just fresh water in it. Much would probably be learned from that.
Reply With Quote Share with Facebook
  #6  
Old 02-03-2010
jrd22's Avatar
Courtney the Dancer
 
Join Date: Nov 2000
Location: San Juan Islands., WA, USA
Posts: 3,817
Thanks: 3
Thanked 15 Times in 15 Posts
Rep Power: 14
jrd22 will become famous soon enough
You didn't mention being low on coolant so I'm guessing it's raw water cooled? A lot of the Volvos have a gear driven raw water pump as mentioned above so that would be a good place to start. Does that engine have an oil cooler? You could have a leak in the core of the cooler. The core can be pressure tested after you remove it from the housing. Hope you get it figured out and it's nothing serious.
__________________
John
SV Laurie Anne

1988 Brewer 40 Pilothouse

Reply With Quote Share with Facebook
  #7  
Old 02-03-2010
huguley3's Avatar
Member
 
Join Date: May 2007
Location: Stuart FL
Posts: 236
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
huguley3 is on a distinguished road
Yes it is raw water cooled. I am pretty new at this but I don't think I have an oil cooler. The engine is pretty simple from what I have seen of the diagrams of it.

About the only thing it could be is salt water in the oil. I do have a hot water heater and will likely disconnect and remove it during this trouble shooting. Was considering it anyway since we don't use it and it has already leaked and ruined the cabin sole. I am working on the hope that the raw water pump put some liquid into it the last time we started it. But that is just a vain hope I think. The engine had issues on the survey that said there was salts in the oil. I don't know if diesels fail slowly or suddenly when it comes to gaskets. If they fail slowly then it could be a gasket all along.

I will keep this updated as I find info. I really hope its not a crack...
__________________
--

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
30' Islander Bahama
Reply With Quote Share with Facebook
  #8  
Old 02-04-2010
Senior Member
 
Join Date: May 2006
Posts: 201
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
r.furborough is on a distinguished road
The Hot water heater heat exchanger could be a source of your problem but outside of a head gasket failure consider a failure (perforation of the water jacket) of the engine block due to corrosion a strong possibility. Hopefully it will be one of the former.
Reply With Quote Share with Facebook
  #9  
Old 02-04-2010
huguley3's Avatar
Member
 
Join Date: May 2007
Location: Stuart FL
Posts: 236
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
huguley3 is on a distinguished road
I am looking for parts for this engine. Right now I am looking for a gasket set. Do they sell the sets like they do for car engines for marine engines or do they need to be purchased seperately? If someone has a source for gaskets besides volvo I would love to hear about it. I search and only come up with parts for volvo cars.
__________________
--

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
30' Islander Bahama
Reply With Quote Share with Facebook
  #10  
Old 02-04-2010
erps's Avatar
the pointy end is the bow
 
Join Date: Aug 2006
Location: La Conner, Washington
Posts: 6,166
Thanks: 2
Thanked 26 Times in 26 Posts
Rep Power: 10
erps will become famous soon enough erps will become famous soon enough
I bought a single head gasket for my MD-17C this summer from our local marine motor shop. I wish I could tell you that I got a good deal on it, but then my nose would grow and damage my monitor.
__________________
Ray
S.V. Nikko
1983 Fraser 41
La Conner, WA


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Boating for over 25 years, some of them successfully.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Volvo MD11C water in the oil brett6913 Diesel 8 02-19-2012 03:54 PM
Oil Change experience - Lessons Learned kmeeks Gear & Maintenance 33 04-16-2010 08:55 AM
Volvo Penta MD 7A high oil pressure? waterrat2 Diesel 4 10-15-2009 03:22 AM
W60 - No oil pressure after oil change??? pma_foyl Gear & Maintenance 9 12-01-2004 09:45 AM
Changing Engine Oil Tom Wood Gear and Maintenance Articles 0 10-02-2002 08:00 PM


All times are GMT -4. The time now is 12:35 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.