Oil level too high? - 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 02-27-2014
L124C's Avatar
Senior Member
 
Join Date: Oct 2007
Posts: 1,387
Thanks: 48
Thanked 3 Times in 3 Posts
Rep Power: 7
L124C is on a distinguished road
Oil level too high?

Just changed the oil on my Yanmar 2GM20, and the cold oil level is about 1/4 inch above the high dip stick mark.
Will it hurt anything?
Reply With Quote Share with Facebook
  #2  
Old 02-27-2014
MarkofSeaLife's Avatar
Senior Member
 
Join Date: Nov 2010
Posts: 2,193
Thanks: 28
Thanked 54 Times in 50 Posts
Rep Power: 4
MarkofSeaLife is on a distinguished road
Re: Oil level too high?

Ka-BOOOOOOOOM!


I think you have to suck a bit out. Which is a pain while its cold.


Ain't boats grand?
__________________
Sea Life
Notes on a Circumnavigation:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #3  
Old 02-27-2014
hellosailor's Avatar
Plausible Deniability
 
Join Date: Apr 2006
Posts: 10,601
Thanks: 2
Thanked 87 Times in 85 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: Oil level too high?

Typically not, but if you are concerned, just drain out a little oil and then there's no risk at all.
Reply With Quote Share with Facebook
  #4  
Old 02-27-2014
gamayun's Avatar
Senior Member
 
Join Date: Aug 2009
Location: San Francisco
Posts: 450
Thanks: 14
Thanked 21 Times in 21 Posts
Rep Power: 6
gamayun is on a distinguished road
Re: Oil level too high?

I just took a diesel engine class, so I'm no expert in these things, but Google "run away diesel engines." Wikipedia says it's rare, but..."A runaway condition can also result from oil supplied by failure of the oil seals in a turbocharged diesel engine, from overfilling the crankcase with oil, or certain other mechanical problems..." The person who was teaching that class has seen it happen a couple of times and there's nothing you can do to turn the engine off from the key or ignition wire. You need to starve it of air, which is easier said that done. I'd remove the oil. Better to never find out what might happen.
__________________

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

s/v Kynntana
Freedom 38
Reply With Quote Share with Facebook
  #5  
Old 02-27-2014
hellosailor's Avatar
Plausible Deniability
 
Join Date: Apr 2006
Posts: 10,601
Thanks: 2
Thanked 87 Times in 85 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: Oil level too high?

1/4" of oil will have nothing to do with a runaway engine. The oil level has to get high enough (typically several inches) to get sucked up past the piston rings, in order to be combusted. 1/4" of extra oil may contact the camshaft bearings, may cause a little foaming, but there's no way it will cause a runaway engine.

And given normal engine tolerances, and the extra leeway added for marine diesels operating at all angles and motions, the odds are 1/4" of oil will harm nothing.

Don't panic with thoughts of runaway engines, ain't gonna happen from this.
Reply With Quote Share with Facebook
The Following User Says Thank You to hellosailor For This Useful Post:
L124C (02-28-2014)
  #6  
Old 02-28-2014
gamayun's Avatar
Senior Member
 
Join Date: Aug 2009
Location: San Francisco
Posts: 450
Thanks: 14
Thanked 21 Times in 21 Posts
Rep Power: 6
gamayun is on a distinguished road
Re: Oil level too high?

Yeah, I skipped right over that part about it being 1/4" above the dip stick line. That does seem pretty minor. But it also seems to me that foaming is exactly what you would not want to have in your engine...
Reply With Quote Share with Facebook
  #7  
Old 02-28-2014
TQA's Avatar
TQA TQA is offline
Bombay Explorer 44
 
Join Date: Apr 2009
Posts: 2,552
Thanks: 0
Thanked 41 Times in 37 Posts
Rep Power: 6
TQA is on a distinguished road
Re: Oil level too high?

1/4 inch will be OK.

4 inches will not.
Reply With Quote Share with Facebook
The Following User Says Thank You to TQA For This Useful Post:
L124C (02-28-2014)
  #8  
Old 03-11-2014
L124C's Avatar
Senior Member
 
Join Date: Oct 2007
Posts: 1,387
Thanks: 48
Thanked 3 Times in 3 Posts
Rep Power: 7
L124C is on a distinguished road
Re: Oil level too high?

For the record, I contacted the local Yanmar dealer and the mechanic assured me this would not be a problem. Thanks for all your input!
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
Universal 3m-20 oil level zen30 Diesel 10 01-16-2013 12:32 PM
Transmission oil level in Yanmar 2GM jray4888 Diesel 5 03-18-2011 02:04 PM
Oil level in Yanmar 2GM L124C Gear & Maintenance 22 04-20-2009 09:43 AM
Oil leak - Low level Westerbeke 27 swanfrogg Gear & Maintenance 2 11-05-2008 03:59 AM
Checking oil level jackytdunaway Gear & Maintenance 5 07-07-2007 10:58 PM


All times are GMT -4. The time now is 01:55 AM.

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.