SailNet Community - Reply to Topic

   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 > slight oil slick in diesel engine exhaust
 Not a Member? 


Thread: slight oil slick in diesel engine exhaust Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
04-04-2013 02:15 AM
MarkSF
Re: slight oil slick in diesel engine exhaust

Can't believe you just answered a 3-year old answer to a 9-year old post.
04-04-2013 01:15 AM
desert rat
Re: slight oil slick in diesel engine exhaust

check the compression, check if the rocker arm bushings are worn wobble excessively. Low compression or worn rockers replace engine. Sorry.
04-15-2010 12:54 PM
klem Whoops. Thanks for catching that SD. I only looked at the time of the post above mine, not the OP.
04-15-2010 12:43 PM
sailingdog Guys—

If he still has an oil problem, he's created a slick the size of the one the Valdez left behind, since he was posting in 2004.
04-15-2010 12:03 PM
klem Yes, that oil consumption is very high. I do not believe that an MD17 has an oil cooler but I may be mistaken. I would check your waterpump to start with. Is there anything coming out of the weep hole? Are you sure that there is no water in your oil? There is usually contamination both ways which will slowly turn your oil milky white.
04-15-2010 11:33 AM
Dumah That oil consumption is way too high, suggest you have a leak in the lube oil cooler or raw water pump. Either way,I would be investigating and curing before the engine itself starts inhaling water. Not familiar with that particular engine, but usually there is an oil passage to the head that relies on the head gasket for sealing, if the engine is "dry" at rest (water drains back after running) it could possibly be the head gasket.

Hope this helps,
Cheers, Dumah
Halifax, NS
10-18-2004 12:28 PM
p32
slight oil slick in diesel engine exhaust

This from a google search cuz I was curious, I can claim very little knowledge on my own:

Symtom:Unburned engine oil in exhaust:
1)Leak in oil cooler.
2)Bad shaft seal on raw water pump.
3)Could be fuel, not oil ?

This from the site: http://www.geocities.com/bill_dietrich/BoatEngineMaintenance.html.
10-18-2004 11:04 AM
mcagney
slight oil slick in diesel engine exhaust

I have a Volvo Penta MD17D (3 cylinder 36HP raw water cooled diesel) that is running perfectly except it is consuming approx one quart of engine oil per 20 hours of operation. The oil in the crank case is clean (not the usual black I would expect from a diesel Ė no sign of any water intrusion) and the engine always starts first time (without any glowplugs) so I know compression is good. This would suggest (at least to me) that since there is no water leak into the crankcase or soot being deposited (engine oil is not turning black) I donít have piston ring wear or head gasket leak. However I do observe a very slight oil slick in the cooling water discharge in the exhaust. My question is where is the likely oil consumption leak? Could it be something as simple as a leaking seal in the water pump shaft allowing crankcase oil to enter the cooling system (but not the other way round). Any suggestions as to what I should look for. The engine is 20 years old (donít know the engine hours).

 
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


All times are GMT -4. The time now is 07:15 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.