$txt['youtube'] = 'YouTube'; $txt['youtube_invalid'] = '#Invalid YouTube Link#'; Hull Bearing - Grease fitting

Author Topic: Hull Bearing - Grease fitting  (Read 13772 times)

0 Members and 1 Guest are viewing this topic.

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Hull Bearing - Grease fitting
« on: April 19, 2013, 12:50:50 PM »
As often as the pump and motor need to be pulled to properly grease the hull bearing, I decided I was going to build my own hull bearing assembly with a hose that could be mounted remotely so the bearing could be easily lubed without taking anything apart. I have seen so many shafts come in with galling from lack of lubrication, which could lead to worn out seals and water leaking in. With this new design everyone will be able to quickly, and easily, grease that bearing with a shot from a standard grease gun.

I am still waiting on some seals and other items needed to complete this, but here are a couple pictures to give you a peek at what is to come.

Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline Hersh

  • Full Member
  • ***
  • Posts: 131
  • Location: West Branch, Iowa
  • Cool Points: 8
  • Engine: Subaru
  • Model Year: 2011
Re: Hull Bearing - Grease fitting
« Reply #1 on: April 20, 2013, 08:33:34 AM »
Tom, great idea. The Mokai manual recommends to grease the bearing after 30 hrs. run time.  From your experience what would you recommend.

Thanks
Hersh

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #2 on: April 20, 2013, 09:08:53 AM »
Thanks Hersh, that bearing should be lubed every 5 hours of use. 30 hours is asking for problems, that is the equivalent of going 30k miles on an oil change in your car.

Many SeaDoo craft used a similar bearing setup, and their recommended lube schedule was before every use. They eventually dropped that design since lack of maintenance would result in the bearing seizing, which would rip the hose loose from the hull and the ski would sink. The Mokai doesn't turn the same RPM's as those machines, but that bearing is just as critical to the design, it keeps the seals riding on the shaft properly. If the shaft starts to show galling, then some slop in the fit is beginning, and the seals can only take up so much slack before they can't do their job anymore and you end up with a "vacuum leak" (pump sucking air through) while under way, or you will take on water while sitting.
Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #3 on: April 22, 2013, 03:21:01 PM »
Here is the finished setup. The needle bearing I use is the same size as the factory. The composite disc behind the snap ring is to prevent damage to the rear seal while installing the pump. Worked out exactly as expected, remote greasing is now a reality. I plan on making up some kits for sale, plug and play installation, will come assembled and ready to install with everything including the hose and clamps, price will be $95 + shipping. Send me a PM, or reply here, if interested.

<a href="http://www.youtube.com/watch?v=TN_hvTpyH-o" target="_blank">http://www.youtube.com/watch?v=TN_hvTpyH-o</a>
<a href="http://www.youtube.com/watch?v=ssVYFTt2sfM" target="_blank">http://www.youtube.com/watch?v=ssVYFTt2sfM</a>

Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline BarnieM

  • Mokai Hero Member
  • ****
  • Posts: 205
  • Cool Points: 5
  • Engine: Subaru
  • Model Year: 2004
Re: Hull Bearing - Grease fitting
« Reply #4 on: April 23, 2013, 12:09:41 PM »
You know me...you have got me hooked...........Barnie ;)

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #5 on: April 23, 2013, 03:43:13 PM »
Got ya' Barnie, you are #3, should have ready to ship some time next week. Will be in touch.  ;D
Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #6 on: April 29, 2013, 09:07:39 PM »
For those who were interested, I have hull bearings ready, $105 + Shipping.   ;)

Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline bizler

  • Mokai Addict Member
  • *****
  • Posts: 574
  • Age: 76
  • Location: Vancouver, WA
  • Cool Points: 46
  • Engine: EX21 W/EX17 Head
  • Model Year: 2010
Re: Hull Bearing - Grease fitting
« Reply #7 on: May 04, 2013, 01:37:51 PM »
I would like to order one, Tom.  I didn't see it on your on-line store. What form of payment works best for you, PayPal, Credit Card or personal check?

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #8 on: May 04, 2013, 02:36:20 PM »
I've been working on updating the site, but time hasn't allowed me to finish yet. I will send an invoice through Paypal, can ship Monday.

Thanks again.  :)
Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline BarnieM

  • Mokai Hero Member
  • ****
  • Posts: 205
  • Cool Points: 5
  • Engine: Subaru
  • Model Year: 2004
Re: Hull Bearing - Grease fitting
« Reply #9 on: May 04, 2013, 07:11:23 PM »
Tom, you do take Pay Pal?   Would make it a lot easier for me..........

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #10 on: May 04, 2013, 07:15:11 PM »
Yes, my Paypal email is Tom692@comcast.net.
Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline Dragon

  • Jr. Member
  • **
  • Posts: 73
  • Location: Santa Clarita C.A.
  • Cool Points: 4
  • Engine: None
  • Model Year: None yet
Re: Hull Bearing - Grease fitting
« Reply #11 on: July 23, 2013, 07:40:15 PM »
What is the preferred grease for the hull bearing? Just don't want to get in a bind with the wrong stuff!
I have some Lucas loaded up? But nothing marine grade or water resistant! Any thoughts!!!

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #12 on: July 23, 2013, 07:47:37 PM »
I've used that same grease with no problems, I recommend every 5 hours.
Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #13 on: October 23, 2013, 05:03:35 PM »
Next run of Hull Bearings are almost finished.  :)

Tom

  >:D    

_________________________

www.PainlessClutch.com

Offline Painlesstom

  • Painless Tom
  • Administrator
  • Mokai Maniac Member
  • *******
  • Posts: 5848
  • Age: 45
  • Location: Georgia
  • Cool Points: 59
  • Making Your Mokai... A Better Mokai!
    • Painless Products
  • Engine: EX21 w/17 head - ES
  • Model Year: 2003 / 2011 / 2015
Re: Hull Bearing - Grease fitting
« Reply #14 on: October 27, 2013, 01:02:46 AM »
5 more Hull Bearings are ready for new homes, I even prime them with grease to start them out.  ;)

Don't let your shafts get like the picture from lack of lube, a shot of grease every 5 hours will keep your shaft and bearing assembly perfect forever.  \./8
Tom

  >:D    

_________________________

www.PainlessClutch.com