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Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

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 11-06-2006, 22:29 Post: 136648
seanreynolds

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 can you verify this?

I have a B2710 Kubota hydrostat. It has about 3000 hrs.Ive been fairly consistent w/my filter changes.Im now experiencing a drastic power loss when under a load. engine sounds fine ,just no power when trying to grade now.some so called mech. said he talked to a kubota mech. about the problem and was told it was an internal hyd. pump,[i already changed the one on the side of the engine],and the part alone was $3000.00 plus another $2000.00 for the labor. can this be true??






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 11-06-2006, 22:47 Post: 136649
Peters

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 can you verify this?

Must be an exellent mechanic that can diagnose the problems as a pump with a $5000 bill over the phone. I can think of two or three things it could be would give the same symptoms and not be caused by a warn hydro pump.






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 11-07-2006, 06:40 Post: 136652
greg_g



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 can you verify this?

Yeah, I'd start with something a little more basic - and lot less expensive; Remove the air filter element and see if the problem persists. If yes, remove the muffler and try again.

//greg//






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 11-07-2006, 06:45 Post: 136653
hardwood

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 can you verify this?

Why not go direct to the Kubota dealer yourself? 99% of those friend of a froend who knows a fellow type deals cost more in the end than going direct to someone qualified to fix it. Been there done that. Frank.






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 11-07-2006, 21:59 Post: 136717
earthwrks

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 can you verify this?

When you say power loss, what do you mean? Is the engine making power but it's not going to the wheels or is the engine lugging but the wheels are turning? A bad or worn out hydrostat will be like driving a car with a bad clutch in that the engine will rev but the car won't move or is very slow and is easily stopped under load offering little or no resistance. Couple of things to look at: It should not be hard to pressure check the system by the dealer---ask them if they are set up to do that as they'll need specifications to make sure the pump is in operating pressure range. In the event the pump and/or the motor are worn they should be rebuildable (my USA-made equipment has been) It wasn't cheap for my mid-size backhoe--$1700 (half the cost of new) (I did the R&R myself) but they rebuilt the pump and motor for that price (they would rebuild the pump BUT if I didn't have them rebuild the motor there was no warranty on the pump---nice). Look around for a supplier on the Net--some guys say they rebuild them but they don't--- they farm it out and make $300-$1000 for "touching" it for you. Go to the source if you can find it. It shouldn't be that hard to replace the pump or motor. On my 33hp NH hydro you have to split the tractor and remove the pump which also contains the motor all in one unit. Beware of "engineering companies" who will tell you they "will have a qualified engineer inspect and test" your pump and motor for an outrageous fee. This is one of those guys who is "touching" it for you. All they are going to do is send it out to a rebuilder. And with all due respect to the rebuilders, having a deadline to keep, I drove 4 hours each way to personally take my units to the rebuilder. I watched them rebuild it in less than 30 minutes---plus got the 50-cent tour of the 200,000 sq ft facility. None were "engineers" by any stretch of the imagination, and the "testing equipment" consisted of an air ratchet to take them apart and a digital caliper to measure the little pistons for wear. It turns out speaking to the owner of the rebuilding company, the "local" engineering firm that I originally contacted would have sent my pump and motor to the same rebuilder I was talking to.






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 11-07-2006, 22:30 Post: 136721
seanreynolds

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 can you verify this?

earthworks- Yes- Thats excatly whats happening[good description].As far as the rest of your comments,I couldnt recieve the rest of it as Im not yet a premium member. however im signing up as soon as im done typing this. As far as the person suggesting I talk to The kubota dealer directly, my reason is that Ive not had very good service or advise from them in the past so dont even want to go there






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 11-08-2006, 02:07 Post: 136723
oneace

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 can you verify this?

So find another dealer and talk to them.






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 11-08-2006, 09:45 Post: 136731
seanreynolds

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 can you verify this?

Come on,... Thats no fun, thats too easy,!






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 11-08-2006, 10:26 Post: 136732
earthwrks

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 can you verify this?

Sean, buddy, where's your "Premium Membership" Laughing out loud? All jokng aside, you'll find the membership is worth the money. Refer to the recent post called "c-ya" and responses by other newbies to it.






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 11-08-2006, 13:10 Post: 136734
Art White



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 can you verify this?

Clogged filter,possibly worn pump from improper oil,weak relief valve. Your background tells me that it is worked but it is a unique failure but should be easily fixed. Can I replace your next pump for 5000?






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Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

Thread 136648 Filter by Poster:
Art White 1 | earthwrks 3 | greg_g 1 | hardwood 1 | ncrunch32 1 | oneace 1 | Peters 1 | ronald65 1 | seanreynolds 4 |




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