Blew up Kubota motor

   / Blew up Kubota motor #171  
LD, it just makes no sense for them to tell me they had a short block, and then tell you they had nothing. Then when you told them someone called and they told them they had one, and all of a sudden .... Yes we do.

I asked about a running motor and that's when steve (I believe) said I'll check and call you right back. About 10 min he calls back and says I don't have a running engine, but I have a short block. It went just like that

Trust me, I would not have told you they told me they had a short block if they didn't tell me they had one lol

Good luck with it !
 
   / Blew up Kubota motor
  • Thread Starter
#172  
LD, it just makes no sense for them to tell me they had a short block, and then tell you they had nothing. Then when you told them someone called and they told them they had one, and all of a sudden .... Yes we do.

I asked about a running motor and that's when steve (I believe) said I'll check and call you right back. About 10 min he calls back and says I don't have a running engine, but I have a short block. It went just like that

Trust me, I would not have told you they told me they had a short block if they didn't tell me they had one lol

Good luck with it !

Yea, if my conversation went like that, when I first called them when this all started....I'd probably be back in business already
 
   / Blew up Kubota motor
  • Thread Starter
#173  
Well, I think I'm back to square one.

"Guaranteed rebuildable" block showed up today.

I was concerned just what "guarenteed rebuildable" meant. And they specifically told me nothing was oversized, everything standard, and no machining required. Just new rings, bearings, seals, etc. Also was told this came out of a mx5100 that caught fire

Well, no evidence of fire, block still fully painted. That's where the good news stops.

Factory bore spec is 3.4252-3.4260....with a Max allowable limit of 3.4319. Well #1,2,4 are at the upper end of spec. 3.4260 plus or minus a few tenths. Bore #3 though is knocking on 3.4300. still under Max allowable....but still .004 heavy.

And the bores are scored up pretty good. And #2 and #3 show hot spots.

Pistons look like crap, no way I'd just re-ring them.

#2 and #3 rods look like they were pretty hot around wrist pin.

And crank , all though rod journals look good, is rusted bad. It's clear they showed little care in storing.

I'll let the pics speak for themselves.

Oh....and the cam....this wasn't out of a mx5100. The can is for a non-turbo engine where intake and exhaust lobes are both 1.335". Instead of exhaust lobe being 1.310

View attachment IMG_20181002_180039541.jpgView attachment IMG_20181002_180232105.jpgView attachment IMG_20181002_180232105.jpgView attachment IMG_20181002_180239311.jpgView attachment IMG_20181002_180306470.jpgView attachment IMG_20181002_180337122.jpgView attachment IMG_20181002_180948806.jpg
 
   / Blew up Kubota motor #174  
That's a shame. Good thing they promised you could return so you are only out the hassle.
 
   / Blew up Kubota motor #178  
so scratcin head - presuming this was not a turbo charged engine could it have even come out of a MX5100? did they make a non turbo version?

if not does it have balance portions like the ag versions are supposed to have? not that it matters but might help you when you try to send it back - those cylinders need boring for sure -

heres hoping they stand by their word, if not you will have plenty of folks here to encourage them it would be a good idea to take it back ;-)
 
   / Blew up Kubota motor #179  
Hopefully you used a credit card?If they dont play ball, just call the cc folks and they will take it back. Then you have 500lbs of scrap iron.
 
   / Blew up Kubota motor
  • Thread Starter
#180  
so scratcin head - presuming this was not a turbo charged engine could it have even come out of a MX5100? did they make a non turbo version?

if not does it have balance portions like the ag versions are supposed to have? not that it matters but might help you when you try to send it back - those cylinders need boring for sure -

heres hoping they stand by their word, if not you will have plenty of folks here to encourage them it would be a good idea to take it back ;-)

L4740 or the MX4700 both had the non-turbo version of the V2403.

But those are the only two I could find.

All the rest that hover around the mid to upper 40's on HP dropped to the shorter stroke V2203
 

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