Yanmar 2GM Oil leak - SailNet Community
 
LinkBack Thread Tools
post #1 of 9 Old 06-15-2010 Thread Starter
Junior Member
 
Join Date: Jul 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Yanmar 2GM Oil leak

I just got back from a trip in the Gulf - Motor Sailing most of the way. I had the engine running about 2300 RPM for 10-12 hours some days - 24 hrs some days. The Gulf was very rough so the boat was heeled and had the rails in the water a good portion of that time. Every 12 hours I would shut the engine down to check the oil level and add oil- most of the time it was about a pint to a quart low. When returned to the slip, noticed that there was about a quart of oil in the pan below the engine - no obvious signs of a leak. Is it possible that the oil could come out the dipstick tube when the boat is heeled?
bclay3 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 9 Old 06-16-2010
Senior Member
 
JimsCAL's Avatar
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,889
Thanks: 2
Thanked 76 Times in 70 Posts
Rep Power: 9
 
I am puzzled why you are running the engine if there is enough wind to put the rail in the water. Running the engine at that angle for hours on end is not good for the engine. I suspect operating the engine that way is the cause of the oil loss.
JimsCAL is offline  
Quote Quick Reply Share with Facebook
post #3 of 9 Old 06-16-2010 Thread Starter
Junior Member
 
Join Date: Jul 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Yanmar 2GM Oil leak

Why run the engine with the rail in the water?

The Gulf is often frustrating sailing. Takes about 4 hours to get it kicked up - 4-5' seas - with 6 sec period. Then the wind dies completely - it often takes 18 hours for the seas to settle down so unless you want to bob for 12 to 18 hours - you fire up the engine and if you were on a reach then the rail is in the water with no wind - even with the waves on the stern, the boat is anywhere but level for idea motoring.
bclay3 is offline  
Quote Quick Reply Share with Facebook
post #4 of 9 Old 06-16-2010 Thread Starter
Junior Member
 
Join Date: Jul 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
JimsCal - Thanks you for your input - confirms what I suspected -

Bud
bclay3 is offline  
Quote Quick Reply Share with Facebook
post #5 of 9 Old 06-18-2010
Senior Member
 
Join Date: Sep 2006
Location: Scotland
Posts: 2,364
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 9
 
Motoring with the rail in the water is likely to cost you one motor.

Very few motors will tolerate sustained heel like that.

Your first warning is likely to be a loud clatter, a whine, then it will stop.
Rockter is offline  
Quote Quick Reply Share with Facebook
post #6 of 9 Old 06-18-2010
Senior Member
 
imagine2frolic's Avatar
 
Join Date: Aug 2008
Posts: 1,830
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
 
Make sure your breather tube is not plugged. It could be forcing oil out where there would be no leak.........i2f

20 MPH ain't fast unless, you do it in a 1000sq 3/2 house on 10foot waves
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


BORROWED, No single one of us is as smart as all of us!
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.
imagine2frolic is offline  
Quote Quick Reply Share with Facebook
post #7 of 9 Old 06-19-2010 Thread Starter
Junior Member
 
Join Date: Jul 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Thanks, I'll check it -
bclay3 is offline  
Quote Quick Reply Share with Facebook
post #8 of 9 Old 06-19-2010
Banned
 
Join Date: May 2010
Posts: 34
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Well I donītsee much reason for concern at running the motor heeled over. Look at the design of the motor (what type is it?) . The oil sits in a pan underneath the crank and pistons etc and the oil pump lifts oil to all the points it is needed.

So if the oil pressure gauge is where it should be for your motor then you will do no harm.
If pressure falls you must stop it immediately as the bearings run on that oil pressure between the parts.

The only other consideration is the lower portion of the bores and the piston pins are splash lubricated by the churning parts and oil returning to the sump. I donīt see that this would cause you any concern as your whole motor would be on the move all the time.

As far as leaks are concerned you must clean up the motor nicely everywhere ,put some paper or white rags down ,run it and look for leaks . My suggestion is put paper under the front pulley and under the bell housing . Oil seals may be worn or blown from overfilling.

Usually dip stick tubes are long enough to accommodate almost sideways running. Some out the breather is also possible on older engines or modified engines .
tytower is offline  
Quote Quick Reply Share with Facebook
post #9 of 9 Old 06-19-2010 Thread Starter
Junior Member
 
Join Date: Jul 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Thanks for the input - puts my mind at ease about running the engine when the boat is heeled as sometimes it is absolutely necessary for safety sake.

Also appreciate the suggestion about the paper or rags under the the oil pan.
bclay3 is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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

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:
OR

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Yanmar baffling black smoke Tspringer Diesel 27 08-03-2012 09:44 AM
Teak refinishing and repair Waterline Gear & Maintenance 21 06-10-2010 02:21 PM
Oil Change experience - Lessons Learned kmeeks Gear & Maintenance 33 04-16-2010 08:55 AM
Yanmar oil leak rskaug Gear & Maintenance 0 01-04-2004 07:08 PM
Changing Engine Oil Tom Wood Gear and Maintenance Articles 0 10-02-2002 08:00 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome