Universal m35 leak at drain plug - SailNet Community
LinkBack Thread Tools
post #1 of 2 Old 01-07-2005 Thread Starter
Junior Member
Join Date: Oct 2000
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Universal m35 leak at drain plug

I have a very slow leak at the 1 1/8" diameter engine fresh water drain plug. It has a smaller plug within it, but does not seem to be leaking there. If I back it out a small amount and put polisulfide caulk on the threads and tighten back up, would that fix it? Or is there too much pressure. Or am I into something more involved. By the way I am only hoping I can unscrew the plug.
sailingdeacon is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 2 Old 01-07-2005
Senior Member
Join Date: Oct 2003
Posts: 399
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
Universal m35 leak at drain plug

I am not sure which plug you mean but if the motor is fresh water cooled you have some options. Alumiseal is a fine aluminum flake kind of like fish food flakes if you know that stuff. The seal circulates the cooling system and finds the hole and plugs it up sometimes for good. Barsleak is another sealer for cooling systems looks like milk and once shaken very well poured in the cooling fill hole and it circulates and stops the leak. Pepper ya the black stuff you put on food your stomach cant desolve it and the antifreeze cant ether. Pour in about three table spoons and it will sometimes stop a leak, this is better for emergency repairs but it does work. Last but not least get a new expandable plug and presto no leak.I am a fix on the fly kind of guy and allot of the stuff I have done works still some of it has lasted for years and friends tell me you know that gizmo you made is still working. I like to give people good advise and good advise is fix it right the first time you cant over beat the engineers at thier game but once in a while. I have a good avrage of beating them to death but its a tough game.
sailnaway is offline  
Quote Quick Reply Share with Facebook

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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
rain leak in MacGregor 26x newuser Gear & Maintenance 9 06-10-2015 10:54 AM
How/what to winterize for living aboard in Great Lakes duffer1960 Living Aboard 14 10-17-2006 02:46 PM
mysterious leak coondogger Gear & Maintenance 10 11-04-2003 08:13 PM
Bilge Drain Plug in a Sailboat AJS Gear & Maintenance 3 10-23-2002 08:18 PM
Universal diesel 5411 rmiille Gear & Maintenance 1 12-30-2001 06:01 AM

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