Yet another Kioti injector pump failure.

   / Yet another Kioti injector pump failure. #21  
1600.00?? Don't you folks know they can be rebuilt?? at a fraction of the cost.. I rebuild those pumps on a weekly basis..
I do know that Kioti keeps this info close to the vest.. & if your do a search for kioti injection pump for your specific mdl.. all you get are NEW pumps in the search engine..
KIOTI DIDNT MAKE the pump.. ZEXEL DID, for KIOTI..
Feel free to contact me for an additional information on getting one rebuilt.

Oh Im mechanically inclined alright. Unfortunately, time is of the essence. Im not sure I can get parts in time for the sale. I had this sold and 2 days later it would not start. I can possibly get one for closer to $1k. If we are talking more than $500 Im not sure its worth the time to have it gone sooner.
 
   / Yet another Kioti injector pump failure. #22  
Thanks Vic
 
   / Yet another Kioti injector pump failure. #23  
Except for the bad heat treat problems, what causes the injection problems?

Water in fuel? Dirt in the 7 micron range? Poor lubricity as a side effect from sulfur removal? Teething problems with design of higher pressure systems? Too much time spent parked and shut off? Something the armchair internet experts haven't heard of yet?

Exactly what can I do to head off problems? I am cautious, tight with a buck, and a lousy mechanic.

I don't think anyone can state the cause with certainty, but ...

Between 2005 and 2008 Kioti changed the engine design (at different times for different models) from an external shutoff solenoid (on right side of engine) to an internal setup with the solenoid on the front of the block. It seems this new solenoid was too forceful for the original control sleeve design and teeth would break off that part after several hundred hours of operation. More likely it was after so many engine stop cycles, rather than operating hours. Tractors with the original, external stop solenoid were not vulnerable. Tractors after about 2009, apparently, have an upgraded control sleeve and are not vulnerable. Some of the replacement injection pumps also had the old part design and failed after installation.

To answer your question, I don't think there is anything you can do (assuming you are even effected) other that avoiding unnecessary engine stop cycles; but there can be safety problems with that.

According to Kioti the only fix is a whole new injection pump, costing $1000 and up. But we now know that this is a common Zexel (formerly Bosch) agricultural injection pump and parts are readily available for repairing it. Even better, control sleeve replacement does not require special tools or re-calibration, if done right. thepumpguysc, on this list, is one of the experts on these IPs.

There are other possible IP failures but the fix for broken control sleeves (new control sleeves) is relatively cheap (like $50-200) and easy.

Replacing the control sleeves in the IP only takes 20 minutes or so but requires strict cleanliness and meticulous attention to detail.

Removing and reinstalling the IP (same job with new or rebuilt IP) takes considerably longer. A handy DIY owner can do this job but several factors can make injection pump removal/replacement quite challenging, such as: the tractor breaking down in the middle of nowhere, or breaking down in an inaccessible location (like too close to a wall), or being unable to remove the loader, or being unable to remove or to fully raise and secure the hood.

The replacement control sleeves I received from Conestoga Diesel were slightly different from the original ones so I assume they are upgraded parts and will be tougher than the original ones (one of which failed).
 
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   / Yet another Kioti injector pump failure. #24  
Oh Im mechanically inclined alright. Unfortunately, time is of the essence. Im not sure I can get parts in time for the sale. I had this sold and 2 days later it would not start. I can possibly get one for closer to $1k. If we are talking more than $500 Im not sure its worth the time to have it gone sooner.

If you haven't already contracted with someone to fix this, recommend you verify the IP is really bad first. You can do this by removing he oil fill plate to see if the IP rack is really jammed or not. If it's OK, the rack should move smoothly with your finger provided the stop solenoid retracted (or removed). There are many reasons a tractor won't start and it's usually not the IP.
 
   / Yet another Kioti injector pump failure. #25  
IF your going to remove the pump for repair.??
The electric solenoid, if its screwed into the SIDE of the block, next to the inj. pump.. MUST come out 1st!!
or you'll bend the rod & then you in for more $$ & down time.
Good luck & let me know if you need my services.. less than 500.00 & fast turn around.. TPG
 
   / Yet another Kioti injector pump failure. #26  
IF your going to remove the pump for repair.??
The electric solenoid, if its screwed into the SIDE of the block, next to the inj. pump.. MUST come out 1st!!
or you'll bend the rod & then you in for more $$ & down time.
Good luck & let me know if you need my services.. less than 500.00 & fast turn around.. TPG

I worked a deal with new owners. Sending mechanic to do all the labor. Wants new part so thats a good compromise. If I were keeping, Id have done a rebuild without hesitation.
 
   / Yet another Kioti injector pump failure. #27  
If you haven't already contracted with someone to fix this, recommend you verify the IP is really bad first. You can do this by removing he oil fill plate to see if the IP rack is really jammed or not. If it's OK, the rack should move smoothly with your finger provided the stop solenoid retracted (or removed). There are many reasons a tractor won't start and it's usually not the IP.

I believe this was done but I will check again. I will have some time this weekend to go and check myself if not. What else could it be?
 
   / Yet another Kioti injector pump failure. #28  
HWK, I know its not your call & I'm really just spouting off BUT..
Most people buy a used machine to save money, in most cases..??
So spending 1600.00 vs 500.00 is just ludicrous.. Sorry, just had to get that off my chest..
& IF you cut the price of the machine 1600.00 just because the guy "wanted" a NEW pump, I don't know what to say about that.
I woulda cut it 500.00 & told him, its his call, weather or not to purchase a NEW unit..
Like I said.. Just spouting off.. sorry.
 
   / Yet another Kioti injector pump failure. #29  
HWK, I know its not your call & I'm really just spouting off BUT..
Most people buy a used machine to save money, in most cases..??
So spending 1600.00 vs 500.00 is just ludicrous.. Sorry, just had to get that off my chest..
& IF you cut the price of the machine 1600.00 just because the guy "wanted" a NEW pump, I don't know what to say about that.
I woulda cut it 500.00 & told him, its his call, weather or not to purchase a NEW unit..
Like I said.. Just spouting off.. sorry.

Not cutting any price by $1600. Because he wont take the rebuild and wants new, which I believe should be acceptable for a 2007 with other old parts, hes paying half. He found one for $1275, so Im good with that now.
The new DK4510 is in and Im happy with it. I had a good 10 year run with the DK45 and this being the first major repair, I feel fortunate.
 
   / Yet another Kioti injector pump failure. #30  
If it is a tooth broke off, then it’s less than 100 bucks even with the parts shipped over night and a couple hours work. It could be the stop solenoid simply not working and keeping the fuel shut off or any number of things besides a broken rack.
 

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