Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 07-06-2008, 14:29   #1
Registered User

Join Date: May 2008
Posts: 7
leaking.....beind rubber impeller

As always, we aren't experts, so please excuse the lack of accurate lingo! The person we purchased our 28ft Pelin from said that he replaced the impeller recently, so it is apparently quite new, and does look in good condition. Directly behind the housing that the rubber impeller lives in, leaks, just a constant drip. When we take out the rubber impeller, the o-rings inside look in good condition and intact, so it sort of doesnt seem like the water is leaking through........but I guess it is? The other question we had is that the impeller is an extremely tight fit, is this correct? Thanks
MacPepper is offline   Reply With Quote
Old 07-06-2008, 16:37   #2
Moderator Emeritus
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 9,844
I assume you mean the pump for the raw water cooling on your engine? I also assume that you do not mean the cover plate that goes over the impeller and impeller housing?

Impellers are supposed to be a tight fit. (This is why I like to lube mine up with silicon grease before installation.) The vanes need to bend in order to function correctly. If the pump is leaking on the backside then you have a seal leak. Because it looks fine does not necessarily mean that it is fine. It sounds like it is time to replace that seal. If the pump is really old, it may be time for a new bearing and possibly a new pump altogether.

My inclination would be to buy a professionally rebuilt water pump">raw water pump.

Life begins where land ends.
David M is offline   Reply With Quote
Old 07-06-2008, 18:23   #3
Certifiable Refitter/Senior Wannbe
Wotname's Avatar

Cruisers Forum Supporter

Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: Van DeStat Super Dogger 31'
Posts: 6,324
David is spot on - just to add some more, if new rear seals still leak, the shaft may be worn as well.
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
Wotname is offline   Reply With Quote

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sail Drive Rubber Seal Connection fastcat435 Propellers & Drive Systems 20 05-07-2011 09:06
Impeller problem sneuman Construction, Maintenance & Refit 1 02-06-2008 07:15
Rubber and Sponge Lube Pelagic Construction, Maintenance & Refit 1 12-04-2008 01:57
Engine Mount Rubber Replacement mjt Engines and Propulsion Systems 13 12-05-2007 15:33
Mercury Rubber Dink......? CSY Man General Sailing Forum 12 23-04-2005 15:31

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 07:33.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.