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 04-04-2012, 11:57   #1
Registered User

Join Date: Apr 2010
Location: Newport News VA
Boat: Egg Harbor sedan cruiser 1970
Posts: 958
Jabsco seal redesign, my own idea

These seals on the saltwater pumps are frequently failing for me, the metal housing corodes internally where the rubber o ring sits, then the black carbon part can no longer move, it gets stuck, and then it leaks.

old seal parts carefully separated, you have to pry or bend or grind the metal crimp that holds it together. Dont damage the face, although you can flip it over as the other side is almost the same if you do.


Then place the bronze washer not spring into housing. I did this to beef up the sponge rubber and put more pressure into the system.


Then take a piece of sponge rubber, this piece is about 1/8 inch thick. It came off an aluminum car AC condensor.

Put the metal seal housing over the rubber
Cut a circle by tracing around with a razor
Then you need the inner circle cut, I inverted the seal housing, placed the rubber inside and used a flat extension, lightly whacked the sponge rubber into the housing inner circle lip to cut the hole. Perfect here wont matter, the rubber is very soft squishy and will conform sealing inside the housing



shows the sponge rubber sitting in the housing


shows the sponge rubber tube I used and the carbon seal sitting inside the housing


I may flip this one over as I slightly damaged the edge. Another one I did I lightly sanded down.
I was wondering if the sponge rubber should be greased with some marine lithium lube to aid in keeping the bronze or brass metal housing from corroding.

Anyhow this one was slightly rushed when disassembled. the other side of these carbon black seals can be used for the face. I have yet to see one of my seal wear out from use, they all wear out from corrosion in salt water.
sdowney717 is offline   Reply With Quote
Reply

Tags
jabsco, seals

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
HATE Jabsco Manual Toilet - should we Convert to Electric ? crewofnoka Plumbing Systems and Fixtures 95 02-02-2015 20:30
X-RAY for My Boat Bottom plpmusic Construction, Maintenance & Refit 5 07-04-2012 12:08
Crew Available: Hi, matt is my name. Looking to get aboard! Matthew79 Crew Archives 4 03-04-2012 23:59
how to rearrange photos in my album. Capt.Fred Forum Tech Support & Site Help 0 02-04-2012 20:30
Why Is My Engine Racing Away? Shanaly Engines and Propulsion Systems 13 02-04-2012 20:07

Advertise Here


All times are GMT -7. The time now is 22:06.


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.