Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 05-06-2018, 02:08   #1
Registered User

Join Date: Mar 2018
Posts: 47
flushing fresh water cooled engine

My engine (kubota) is fresh water cooled.


I would like to flush it to get out all the deposits.


What do people recommend to flush out scaling, etc ?


Thanks,


jim
xxhat is offline   Reply With Quote
Old 05-06-2018, 04:12   #2
Registered User
 
ranger42c's Avatar

Join Date: Aug 2012
Location: Maryland, USA
Boat: 42' Sportfish
Posts: 4,402
Re: flushing fresh water cooled engine

When you say "fresh water cooled" I think you mean antifreeze in the closed cooling loop, and a heat exchanger system for cooling the coolant.

Which means two parts to flush. Our engine manufacturer recommends their own product for flushing the closed coolant system. Happens to be Cummins Restore, and our service manual has directions (mostly drain old coolant, fill with Restore, run it for a bit, drain the Restore, fill with new coolant).

The second part is the raw water passageways, heat exchanger, etc. Two products marketed for this purpose are Rydlyme and Barnacle Buster, and there may be others. One method is to fill/wait/drain, and another is to recirculate, latter said to be more effective.

In your case, probably useful to learn about any restrictions Kubota may publish...

I used Rydlyme on our engines, one each method, and on our genset, 2nd method, didn't see much difference. I've used Barnacle Buster on our ACs, first method, seemed to work. Recirculation in this case would be a major pain, 'cause catching the outflow isn't easy when our boat is in the water.

-Chris
__________________
Selby Bay, South River, Chesapeake Bay, USA.
ranger42c is offline   Reply With Quote
Old 05-06-2018, 04:39   #3
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Jacksonville/ out cruising
Boat: Island Packet 38
Posts: 31,010
flushing fresh water cooled engine

I installed a Prestone flush kit inline with the hose going to the water heater, just like you do on an auto heater hose.
Connect garden hose, flush until water is clear, drain and refill with antifreeze and water mix
a64pilot is online now   Reply With Quote
Reply

Tags
engine, flushing, water

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Salt water cooled to Fresh water cooled Boxertwinjeff Engines and Propulsion Systems 5 16-12-2016 15:39
Flushing raw water cooled engine tommyh Engines and Propulsion Systems 11 13-08-2015 05:13
Flushing A Seawater Cooled Engine? charliehows Engines and Propulsion Systems 17 14-07-2015 09:47
Air-Cooled Compressor vs Air/Water-Cooled Compressor melidramatic Plumbing Systems and Fixtures 4 06-02-2011 08:35
Flushing a raw water cooled Yanmar Solitude Engines and Propulsion Systems 4 14-04-2009 17:11

Advertise Here


All times are GMT -7. The time now is 17:24.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.