Blew up Kubota motor

[zzvyb6]

So, my oil, temp, water separator, battery, parking brake and pto lights come on when I turn the key. Can't help but notice. If my dipstick was out, I would smell and see oil mist blowing out of the motor compartment, especially 4 quarts ! If the sump was dry, I think the lifter rattle would wake up Sleeping Beauty.

I probably would not ever be facing this problem, eh ?

 

[ruffdog]

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It looks like from the pictures that most of the galling is bearing material, not block material? How do the bores measure?

 

[ruffdog]

Here is a quick look at the Loctite bearing retainers:

LOCTITE Bearing Mount | JEGS

PMB Product:

 

[LD1]

So, my oil, temp, water separator, battery, parking brake and pto lights come on when I turn the key. Can't help but notice. If my dipstick was out, I would smell and see oil mist blowing out of the motor compartment, especially 4 quarts ! If the sump was dry, I think the lifter rattle would wake up Sleeping Beauty.

I probably would not ever be facing this problem, eh ?

Mowing 4-5' tall weeds with a 2.5' dipstick height hid all the evidence. I thought sure I'd have smelled it too. But nope. I know it don't take much of a hydraulic leak at all and it seems that's all I can smell. But not this time.

 

[LD1]

It looks like from the pictures that most of the galling is bearing material, not block material? How do the bores measure?

If non of the engine builder familiar with Kubota are willing to stand behind a repair of this block I am taking that as a sign.

Sure, odds are I'd never have a problem. But I don't always want this lingering in the back of my head Everytime I'm in the seat.

 

[ruffdog]

If non of the engine builder familiar with Kubota are willing to stand behind a repair of this block I am taking that as a sign.

Sure, odds are I'd never have a problem. But I don't always want this lingering in the back of my head Everytime I'm in the seat.

Some people have no knowledge that there are many more Loctite products other than their Threadlocker. BTW...never use Threadlocker as a bearing retainer...use the correct tool for the job.

 

[IH3444]

Looks to be repairable to me. Crank needs TLC, possible grinding. Only the rod looks bad, just grind that one for some cost savings. The balance bearings would need to be fitted to the cleaned up bores to see if they fit properly. If fitted OK, then dremel divets on both sides so that bearing can be staked into place to keep from rotating in bore. I would also use as mentioned the correct Loctite bearing mount retainer for added safety. Cylinder bores look good, as well as pistons. Check crankshaft, balanceshaft straightness in block for certain. Balance shaft may clean up, if not it could be welded up and reground to spec. if no reasonable replacement could be found. Would cost some $$$$, but I always like to set the same motor into it's parent equipment if possible. Shame you're so far away. I have a network of engine buddies, crankshaft grinder buddies. We are very good at what we do.

 

[LD1]

If I post a serial number, can anyone identify if it has balance shafts?

 

[LD1]

 

[hawkeye08]

Looks to be repairable to me. Crank needs TLC, possible grinding. Only the rod looks bad, just grind that one for some cost savings. The balance bearings would need to be fitted to the cleaned up bores to see if they fit properly. If fitted OK, then dremel divets on both sides so that bearing can be staked into place to keep from rotating in bore. I would also use as mentioned the correct Loctite bearing mount retainer for added safety. Cylinder bores look good, as well as pistons. Check crankshaft, balanceshaft straightness in block for certain. Balance shaft may clean up, if not it could be welded up and reground to spec. if no reasonable replacement could be found. Would cost some $$$$, but I always like to set the same motor into it's parent equipment if possible. Shame you're so far away. I have a network of engine buddies, crankshaft grinder buddies. We are very good at what we do.

Sounds like a road trip opportunity for LD1... just box it all up and go for a visit..