M2-12 water pump

[jimyoung]

Carl,

I looked thru my boat papers and found the service bulletin (#88-54-3) so I scanned it for you, however your e-mail address is hidden and I don't have any idea as to how to upload it to this web-site.  If you will get me your e-mail I will forward it to you.

Since the first numbers are 88 it may designate the year it was inacted so your engine may already have this modification. but it shows a good break-out of the pump and it's parts along with part numbers.

Good luck!

Jim

[stephens84]

Jim,

Sorry for the late reply, I only check the forum every few days in the winter. With snow and ice sailing is the last thing on my mind in NY.

E-Mail address is stephens84@yahoo.com

Thanks for the info.

Carl

[jimyoung]

Glad to help, it's on the way. 

Winter here "IS" sailing weather.  Last night was a little cold to be "on the hook" however.  It got down into the fourties! Burr! Today is sunny and 74, and Miss B. is still not together yet.

Jim

[perseverance272]

I have this same issue on my M2-12 (about 1 drip per second when the engine is running).  I was curious if any knows if there's a risk of water from the pump leaking into the engine case. There doesn't appear to be any water in the oil, but since the boat is new to me, I'm not sure how long this leak has been going on.

Did you end up replacing the pump? If so, which did you use? Any catches or issues to look out for when replacing?

Thanks!

[deisher6]

Wow, this is an old thread.  

Is there any current advice on a freshwater pump.

I would appreciate any direction on how to save money by ordering Kubota parts.  

Part #301336 from Universal is listed at $330.55 (Toad Marine Supply) from Google search.

We took the boat out in the river planning to swing the new Raymarine autopilot compass.  Just past the bridge the engine started making some different sounds.  Stopped the engine checked for serious leaks, fan belt, out of bounds temperatures.  Didn't see anything so started it back up and checked the engine, noted that the freshwater pump was not spinning on its axis all of the time, the pulley would deflect.  Crossed my fingers and headed back to the marina.  Made it in ok.  Pulled the pump, the impeller can move 1/8 inch, although not leaking it would seem that the bearing is worn.  When I was cleaning up standing in the starboard cockpit locker turning off the raw water through hull, I noticed a triangular pice of plywood that was jammed under the water heater/fuel tank platform, was now jammed under the shaft coupling.  It had some gouge marks in it probably adding to the weird engine noises.  Next time I will check the prop shaft first, then the generator belt.  

I think that you, "Learn more by sailing 'classic' boats."

Thanks for any helpful hints.

regards charlie

[wes]

Charlie - it might be worthwhile to call Keith Scott at the Sailboat Company. I was on the phone with him not long ago talking about my 27 restoration project, and we got off on water pumps for the Universal. He was an amazing wealth of information, freely offered.

Wes

[deisher6]

Wes:
I took your advice and called up Keith.  After balancing all the input, and my desire to get back on the water, decided to order a new pump from Universal via a local mechanic.  I plan on looking into getting the other one rebuilt at my leisure.  I will post how that works out.
Thanks.

regards charlie

[Koinonia]

For the standard Kubota parts on these engine going through the tractor dealer (agricultural) is still the expensive route.  Kubota is the worlds largest industrial engine supplier under 100hp.   Go the industrial route and call Engine Power source out of Rock Hill SC.  Dont say sailboat as they wont want to sell to you.  You need to talk engine code and I always have my Kubota part numbers ready.

   

[deisher6]

Hey Koinonia:
I am finding out that under the poorly spray painted gold that my engine is Kubota blue! or at least parts of it are......  Where can I get an M12 looking Kubota parts manual?

I agree that the Kubota parts folks very much do not want to talk Universal.

Thanks.
Charlie

[Koinonia]

yup, thats why when I sprayed my M25XP for Koinonia, I went with Kubota Blue.  Looks a whole lot better than Universal gold which looks dirty when new.  The M12 is based off the Kubota Z-400 engine.  I checked and I dont have  PDF file for this engine.  Some searching online will be in order as youll have to work your way through the sites trying to sell the manual through downloading.  Usually you can find them free somewhere, you just have to look.   Or maybe somebody on the site already has the PDF and they can just send it strait to you.

     Josh