Loss of all transmission fluid - SailNet Community
 
LinkBack Thread Tools
post #1 of 5 Old 01-02-2007 Thread Starter
Junior Member
 
Join Date: Sep 2006
Location: North Bend, Washington
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Loss of all transmission fluid

An interesting thing happened while out this past weekend. Our Perkins 4-154 with a Borg-Warner 71CR after heating up lost all transmission fluid into the bildge leaving us without any forward gear. After being towed back to the dock and filing the fluid again, all is well.

There was no wind and we had been running it at a higher RPM than normal to check for engine heating issues. We have only had this boat for less than 6 months so we are still finding these "issues".

Any thoughts or has this happened to anyone else?
sailingwife is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 5 Old 01-02-2007
Senior Member
 
pigslo's Avatar
 
Join Date: Nov 2004
Posts: 804
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 11
 
Transmission cooler not working and you boiled it out?
pigslo is offline  
Quote Quick Reply Share with Facebook
post #3 of 5 Old 01-02-2007
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,534
Thanks: 104
Thanked 312 Times in 300 Posts
Rep Power: 10
     
On some transmissions oil can blow out the dip-stick tube vent under certain conditions.

The fix is to drill an extra hole just below the threads near the top of the tube, but so that it's just inside the transmission housing. That way the tranny case can vent without pushing oil up and out the vent.
Faster is offline  
Quote Quick Reply Share with Facebook
post #4 of 5 Old 01-03-2007 Thread Starter
Junior Member
 
Join Date: Sep 2006
Location: North Bend, Washington
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Good information. One theory a dock mate had was that there was some type of pressure vent or overflow with a tube that created a siphon and once started went until all the fluid was drained.
sailingwife is offline  
Quote Quick Reply Share with Facebook
post #5 of 5 Old 01-03-2007
Senior Member
 
Join Date: Nov 2006
Posts: 135
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
My instincts tell me that Pigs is on the right track. Any design or installation issues should have been sorted out much earlier.

One analysis is that either the cooling system, assuming there is one, has a problem, or something internal, such as a bearing, is failing, causing excessive heat generation.

It's possible that the fluid cooler is cracked and is leaking. I would look at it first. Flush it out and pressure test. There might be a hose or line leaking if the cooler is external to the transmission. This analysis is saying that the fluid escaped and then the trans overheated, not vice versa.

It's possible that if you were trying to push the boat past its hull speed, the trans was simply overloaded, with slippage causing the heating.

You will want to flush out all of the fluid to eliminate the residual burned fluid remaining from the overheating. Removing and flushing the cooler will help achieve that end. If, in the flushing process, any solid material is dislodged, the cooler should be replaced (discard the old one; it's NOT suitable for a spare) and consideration be given to inspecting the transmission.

Just my thoughts.

Last edited by jones2r; 01-03-2007 at 01:27 PM.
jones2r 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
transmission question almostbroke Gear & Maintenance 10 09-17-2012 09:56 AM
Transmission fluid LaLeLu Gear & Maintenance 15 04-11-2006 09:24 PM
Transmission & Autopilot Fluid aphil138 Gear & Maintenance 0 07-24-2003 02:13 PM
Breakdown in Paradise Mark Matthews Gear and Maintenance Articles 0 04-29-2002 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