Very hard to start

[JHoffman]

I searched the forum for starting issues but non quit like mine. The tractor is a 2007 CK27 shuttle shift. It has only 49 hours on it. Lately I have to crank the engine excessively to get it to start, when it finally does start it surges and has very little power until it warms up a bit. Lifting the bucket before it warms up will almost stall the engine. Once it is warm it runs normally and will start just fine. From what I have found on this forum it sounds like it could be the injection pump, what is odd is that it runs fine once started and warmed up.

 

[unhappykioti]

Not real sure but I think one of the first things I would check for would be air in the system, cracked fuel bowl, loose or cracked fuel lines etc. That would be where I would start. Have you changed your fuel filter?

 

[JoelD]

Not real sure but I think one of the first things I would check for would be air in the system, cracked fuel bowl, loose or cracked fuel lines etc. That would be where I would start. Have you changed your fuel filter?

If under warranty let the dealer sort out

Joel

 

[VictorW]

With only 49 hours, it's hard to believe the injector pump is bad already. Some have lost their pumps in the 300 hour range but this I believe was on the older @ 2004 to 2006 models. The newer models, which I think the 27hp is, were supposed to have a change in the pump by making the plastic gear different in the pump. Some have had the fuel filter bowl crack but I thought a change occurred there too. One of the dealers here should be able to explain better on the changes. Odd that it runs and starts good once warm. Maybe the glow plugs aren't working. Some have had the controlling relay go bad.

 

[Transit]

Have you changed the injector pump oil and what about the filters? With such little use you could have bugs in the fuel clogging the fuel filters.

 

[Egon]

Odd that it runs and starts good once warm. Maybe the glow plugs aren't working. Some have had the controlling relay go bad.

Definitely an area to consider.:thumbsup:

 

[JHoffman]

I haven't yet done the first 50 hr. service but the fuel filter bowl is clear and there is nothing obvious in the bowl. It has been in the upper 90's lately so it shouldn't need the glow plugs to start. I will probably change the filter and see what happens. If it doest fix it its going back to the dealer for them to look at it, its under warranty until September.

 

[Thomas]

I check my tractor trouble shooting booklet.

Suggesting...
Bad fuel or mix w/water.
Weak battery..bad connection.

 

[mx5guy]

does it strart better if you do use the glow plug?

I always use mine in a cold start condition even wen its 80+ out there.

 

[edameyer]

Sound like glow plugs not working to me.

 

[BTI]

Probably a bad glow plug relay.....


BTI

 

[KiotiDave]

Hey,
Even in the warmer weather a diesel likes to be preheated before you start it for the first time each day. Take a test light and check for power to the top of the glow plug. you have to be fast because the timer will turn it off in about 15 to 20 seconds. Just recycle the key and it will turn back on for a short period.
It sounds like a glow plug problem not an injector pump.
Dave G
KiotiDave

 

[tinman955]

When you turn yr key on you should here a click of the glow plug relay and the light should stay on for about 15 secs or so, make sure the glow plug rail is clean and the glow plug nuts are tight. Make sure the power wire back by the firewall is tight. Like said by BTI said its prob the relay, unplug it and plug it back in and see if it starts better that way. If so just replace it....

 

[JHoffman]

Tractor is going to the dealer as soon as I get my trailer back. (Loaded to a friend). 95 % sure its a fuel issue. GP relay is working. If it was GPs I would think that it would smoke something awful when it finally starts having all that fuel pumped into the cylinders and its not smoking at all. Changed fuel filter and pulled line off fuel pump coming from the tank, good fuel flow there. Haven't had a chance to take the line off coming out of the fuel pump going to the injectors. Its under warranty, I'll let the dealer sort it out. I'll post back what they found out when its fixed.

 

[MichiganIron]

This doesn't sound like an injection pump issue. It sounds like a lack of heat....low power until the engine warms. Certainly not a sympton of an injector rack problem.

Put at volt meter on a glow plug. Should be able to read 9-11 volts during the glow cycle. If the glow system is functioning, even one bad glow plug can cause hard starting. You can be running on 2 cylinders until the 3rd reaches combustion temperature.

Good thing to have your dealer take a look at.

 

[JHoffman]

Finally got tractor started today and up on the trailer. Its going to the dealer on Monday. It is having its first 50 hr. service and hopefully getting the starting issue fixed. It was 107 degrees F outside and it still took lots of cranking to get it to started. I finally got it started and it revved up and quit, did that several times before it stayed running. I'll keep you all posted on what the dealer finds.

 

[lilranch2001]

47 hours in 2 years?
What do you do, use it as a show piece only?

I put my first 50 hours on in less than 3 months, 107 hours on in 5 months

 

[JHoffman]

LilRanch, I am an aircraft mechanic. I only have 5 acres, I mow with a ZTR now, its faster then the Kioti so the only time it gets used is to work the garden, grade the drive, or do ground work. Its my Toy

 

[JHoffman]

I got a call from the dealer today. The hard start problem was a sticking fuel rack in the injection pump. They are going to replace the pump under warranty.

 

[VictorW]

It should be as good as new and maybe better. Kioti's newer pumps are supposed to have new and improved inside parts. Not the ones that failed in the older version. It's nice that it will be all taken care of.