turning up the fuel on a ck27

[thepumpguysc]

I was hesitant to come back to this thread, for the fear that my information would have been taken "wrong"..
Yes, I do work in the Injection pump business, have been for over 30 years, for a living.
The wear is soley dependent on maintanience ie: filters, oil changes, fuel additives and coolant..
The ULSD has completely destroyed the diesel injection pump system.. I'm replacing VERY hi dollar components that would have NEVER been replaced otherwise..
EVERY engine manufacture PRINTS out, that you have to put an additive in your fuel system on EVERY fill-up..
Its a case of pay me now [additive] or pay me later. [pump/injector repair]
I look forward to helping out where/when I can.. just ask..

 

[dadster4]

I was hesitant to come back to this thread, for the fear that my information would have been taken "wrong"..
Yes, I do work in the Injection pump business, have been for over 30 years, for a living.
The wear is soley dependent on maintanience ie: filters, oil changes, fuel additives and coolant..
The ULSD has completely destroyed the diesel injection pump system.. I'm replacing VERY hi dollar components that would have NEVER been replaced otherwise..
EVERY engine manufacture PRINTS out, that you have to put an additive in your fuel system on EVERY fill-up..
Its a case of pay me now [additive] or pay me later. [pump/injector repair]
I look forward to helping out where/when I can.. just ask..

Kioti recommends that NO additives are to be added to the fuel...do you recommend any particular additive you feel is safe for any diesel tractor? I'd rather not find out the hard way that I could have avoided any wear issues in the future.

 

[thepumpguysc]

The biggest problem I see in tractors is moisture and fuel contamination, not actual wear..
The wear and big $ comes in the passenger vehicles.. especially the VW TDI.
There are many, many products on the market and many, many independent studys done.
But most studys I've read state that a co. called Shaffer makes the best product for lubrication and cetane increase.
Its expensive tho and that keeps a lot of people from that product. The most widely used product that's on the market in my opinion is Stanadyne and Lucas. & both are actual injection pump manufacturers..
Another huge problem I see is, over use of the product.. In this case MORE IS NOT BETTER.. the product is so concentrated that people are over dosing their tanks..So if a small bottle says, treats 200 gallons the customer is putting the entire bottle in their fuel tank that holds 30.. and destroying their systems overnite..
As far as Kioti goes, I have not familiarized myself w/ all their products. but the ones I have seen are based on a 1970's proven system and very reliable. Its just good insurance to add a moisture control & added lubrisity to your tank anyway.. and ALWAYS read & follow the directions..

 

[SPYDERLK]

Ritchey> you seem to be misinformed. The injection pump is an entity unto itself, and limited by the screw the engine manufacturer installs. Not adjusted on a bench by the injection pump folks. When you send a pump in for service, the screw stays in the engine block.
The pump folks SETS the fuel at full and CHECKS idle and starting. The full load fuel SCREW is set by the engine manufacturer at the factory.

^ Could you elaborate a little here? ^ ​

Due to gear train wear, fuel quality and injector condition, the fuel may not be getting a complete burn, hence the need to
"turn it up".. I'm not saying this is the correct method to remedy a low power condition, I'm just answering the question asked..
You are correct in the effective plunger stroke.. and too much fuel will actually lower the hp of the engine by flooding it w/ fuel.

Thanks.​

 

[dfkrug]

I was hesitant to come back to this thread, for the fear that
my information would have been taken "wrong"..
Yes, I do work in the Injection pump business, have been for over 30 years, for a living.

Well, I am glad you are participating, PUMP. Actual experience is very valuable.

As for the OP's Q, I have had my Kioti CK now for nearing 12y and it is the 3rd of these
M27 tractors I bought new. None have had the FI pump failure that others have
experienced. I will fix mine when/if it happens.

I have not done much with diesel FI, but I did a lot with my old Bosch K-Jetronic mechanical
gas FI system. Adding turbos to a NA engine required jacking the flow up a bit, and the
way I did it was to up the pressure. Then, back to standard pressure to pass the smog test.

Of course, this means 100+ psi for gas, and those diesels can be 2000psi or more. Different
world.

 

[dadster4]

Thanks for the info PumpGuy :thumbsup:
Are you familiar with Fairbanks Morse engines? One injection pump can be easy to maintain, but our engine at work has 12, one on each cylinder, so we are used to adjusting them and injectors as well...always a pain in the ***

 

[thepumpguysc]

F.Morse?? OH YEAH.. I loved doing those pumps & injectors back in the day.. I STILL have the specs written down from 32 years ago..
I still see them every once in awhile.. ESPECIALLY when theres a war going on.. The military brings them out of mothballs and puts'em to work..

 

[thepumpguysc]

SPYDER.. The injection pump is capable of producing more fuel than the engine manuf. requires for any given application.
That's to say, the same engine will have different HP's depending on the customers request.. The ENGINE manufacturer then turn a screw on the engine to produce the required HP..
The pump folks just make sure the inj. pump IS CAPABLE of producing that fuel from a spec sheet supplied by the PUMP manufacturer..
and ofcouse we set the equal delivery between cylinders.
If you take a gander at your engine you'll see a HI idle screw, a LOW idle screw and hidden screw w/ a tamperproof cap, a MAX fuel screw, AWAY FROM THE INJ. PUMP. That's a separate governoring system.. The pump just pumps the fuel quantity that the governor system tells it to. Its made up of springs and flyweights. I hope this helped.

 

[thepumpguysc]

I just found a web page that describes the fuel system/inj. pump quite well
Just google> ck25 injection pump and you'll see IP REMOVAL from 2881neches..

 

[ritcheyvs]

For folks that haven't been tracking this issue, a number if IPs in 2005-2008 models failed when one or more gear teeth broke off there they engage the rack. The Kioti "school-solution"was to replace the IP with a new IP costing $800-$1600, just for the IP. Several owners found a cheaper solution: just replace the gear(s) or rotate the bad gear 180 degrees (only possible in some versions). The repair solution cost between zero and $300 depending on who does the labor.

I own one of the vulnerable tractors so I started tracking those failures reported here (see here) and included other useful information. Also there is a (somewhat dated) sticky post at the top of this Kioti O/M section that links to that page.