Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 13-05-2012, 11:10   #1
Registered User

Join Date: Mar 2012
Location: SIMONS TOWN S.A
Boat: DIX PILOT HOUSE 38
Posts: 4
Vetus 417 engine 42 horse

My Vetus engine has 120 hr and started overheating.When i removed the sea water impellar i found one finger broken and stress stains on the rest.
Has anyone else had a similar fault? iam worried it may happen agian.Thanks Luke
__________________
G.LUKE is offline   Reply With Quote
Old 13-05-2012, 11:47   #2
Moderator
 
noelex 77's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: Living on dirt waiting for our new yacht to be built.
Boat: Half built Bestevaer.
Posts: 10,618
Re: Vetus 417 engine 42 horse

I have no experience of your engine, but in general the most common reson for an impeller failing early is running dry.
Other common causes are an incorrect impeller, and scored or damaged face plate or pump body.
Make sure you find the broken bit of the impeller, to ensure its not clogging up the cooling system.
I would change the impeller more frequently. This should be done every 12 months or 100 hours of running, but impellers are cheap compared to rebuilding engines, so more often would be sensible till you find the cause of the problem.

Check there is adequate water from the exhaust at all angles of heel. The water pump should feel cool.
__________________
noelex 77 is offline   Reply With Quote
Old 13-05-2012, 18:18   #3
Registered User

Join Date: Oct 2011
Posts: 2,432
Re: Vetus 417 engine 42 horse

Pull the front of off your heat exchanger. That is where broken off vanes end up, and can cause restrictions in cooling water flow. If previous owners have replaced impellors without finding the broken off vanes you could have a real collection of them, and could cause cooling problems even with a new impellor. I learned the hard way.____Grant.
__________________
gjordan is offline   Reply With Quote
Reply

Tags
engine

Thread Tools
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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.