Cruisers Forum
 


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 25-03-2015, 17:23   #1
Registered User

Join Date: Nov 2010
Location: BC
Boat: O'Day 40
Posts: 1,083
Manual Bilge Pump for O'Day 39 & O'Day 40

After 18 months of searching I've found a replacement for the Kempax K504/5 pump made by Raritan.
The valves on mine had lost their flexibility and I couldn't find any to match and the exposed cover was brittle and ugly.
I found it after seeing a catalogue shot that looked similar. An email to SPX Sweden resulted in an email from the Customer Service Manager in Illinois that gave me the new model number of the old Kempax.
The Canadian distributor had no stock and I didn't want to wait 10-12 weeks so I found 1 in stock at Pump Vendor. They shipped quickly and now I have a Johnson 70-50005 Viking pump.
The only differences are longer inlet/outlet tubes for better clamping and black coloured plastic parts. Replacement parts are also available.
__________________
Trying to make new mistakes.
bcboomer is offline   Reply With Quote
Old 02-03-2024, 10:53   #2
Registered User

Join Date: Apr 2018
Location: Suttons Bay, MI
Boat: ODay 34
Posts: 13
Re: Manual Bilge Pump for O'Day 39 & O'Day 40

I have a malfunctioning Kempax pump (O'Day 34) and have disassembled/cleaned/inspected all the components with no discernible defects found. Bench testing shows that the outflow flap valve doesn't seat well preventing a vacuum from forming on the inlet side.
  • Sealing the outlet port opening during downstroke produces good vacuum
  • Submerging both ports in water while pumping generates good aspiration and ejection.
I haven't found replacement parts easily online - Hallberg Rassey site has them but costs more to ship than to buy! Johnson Viking lists the pump on its website but local distributors don't have the pump or parts.
https://www.spxflow.com/johnson-pump...-and-bulkhead/
I'm considering placing a check valve on the outlet side to correct this. Has anyone tried this or have other thoughts/suggestions?
Also considering the Whale Smartbail as a replacement if it comes to that, but worry about the durability of the cover/handle unit.
Attached Thumbnails
Click image for larger version

Name:	Kempax replacement.jpg
Views:	17
Size:	251.1 KB
ID:	287101   Click image for larger version

Name:	IMG_0665.jpeg
Views:	12
Size:	249.6 KB
ID:	287102  

Click image for larger version

Name:	IMG_0666.jpeg
Views:	8
Size:	278.0 KB
ID:	287103  
WaltUnsalted is offline   Reply With Quote
Old 02-03-2024, 11:23   #3
Registered User

Join Date: Nov 2010
Location: BC
Boat: O'Day 40
Posts: 1,083
Re: Manual Bilge Pump for O'Day 39 & O'Day 40

Why don't you just buy 1 from pumpvendor.com?
They show stock.
__________________
Trying to make new mistakes.
bcboomer is offline   Reply With Quote
Reply

Tags
bilge, bilge pump

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
Can Anyone Identify this Manual Bilge Pump ? rebel heart Plumbing Systems and Fixtures 7 26-04-2019 21:44
Best bilge pump to keep the bilge as dry as possible keelsidedown Plumbing Systems and Fixtures 24 30-05-2018 15:51
Biggest / Best Flush-Mount Manual Bilge Pump ? sneuman Construction, Maintenance & Refit 5 20-07-2010 07:54
1990 Wellcraft San Remo Bilge Pump Locations and Foul Bilge Smell skyinb Powered Boats 2 25-06-2010 19:21
Guzzler 500 Manual Bilge Pump Ron_Fran Product or Service Reviews & Evaluations 3 15-04-2008 06:42

Advertise Here


All times are GMT -7. The time now is 02:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.