SailNet Community - Reply to Topic
Thread: volvo md2b raw water cooled Reply to Thread
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:
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.

  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)
04-28-2003 10:48 AM
volvo md2b raw water cooled

My experience with the MD-2 was that I should be able to touch the exhaust water with my bare hands without it burning. It might be hot but not steaming or scalding. One or two spurts every 3-4 secs or so. If your temp gauge is about 155-165 for rwc you''re probably OK.

04-28-2003 05:54 AM
volvo md2b raw water cooled

My MD2B is 33 years old. When I first started running it, I was wondering why so little exhaust water. The intake is only 5/8", so how much can you really build up? It''s been fine for years with just a little cyclical spray - spurt. I replace the impeller annually, but the problems is often finding the paper gasket necessary for the pump cover. KW
04-27-2003 11:08 PM
volvo md2b raw water cooled

that sounds like a good arrangement. btw, how much water should i see dumping out of the exhaust outlet. Now I''m getting cyclical spurts, but I think perhaps it should me more: if so, should i assume that''s a bad empeller?
04-26-2003 06:04 AM
volvo md2b raw water cooled


I have a 5gal. tank that I keep filled with fresh water with a intake line running to a 3/4" two way valve that can select from either seawater or the tank. This has worked fine with no problems. Even the thermostat stays clean. I have a good size raw water strainer installed right after the seacock. I still replace the waterpump impeller and seals every year. The flow out the exh. should be constant,with a gush of water every 3 seconds or so.

Dave R.
04-25-2003 03:57 PM
volvo md2b raw water cooled

How do you go about flushing it with fresh? Also, how steady should the exhaust water be? Is there a specific volume? If it falls below a certain level does that indicate an impeller needs replacing?
04-25-2003 02:06 PM
volvo md2b raw water cooled

Mine is over 20 years and runs great,although I flush it with fresh water after every use.

Dave R.
04-24-2003 05:19 PM
volvo md2b raw water cooled

Anyone know what the life span is for a raw water cooled volvo md2b engine?

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

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