turning up the fuel on a ck27

[Mike Gibson]

So after wading through 4 pages of comments nobody has actually done this to the CK series tractors? Having a vested interest I was curious to see how it turned out for someone who did this on the earlier mechanical CK's. Although the engineering dissertations were interesting to read, none were germane to the OP's original question.

 

[dfkrug]

Although the engineering dissertations were interesting to read, none were germane
to the OP's original question.

Well, actually, most of them are germane to the OP's question.

We have determined that the CKs have mechanical FI, not common-rail electronic FI. THEPUMPGUY and others
have explained how some adjustments can be made.

References have been made to the CK's FI pump problems and how to fix them threads. The OP may not have
seen them.

Lastly, there do not seem to be any TBN members who have turbocharged their CK or CT tractors (yet), or
messed around with increasing fuel delivery for other reasons. I, for one, find it useful that his
query gets asked and answered periodically. Great thread.

 

[MESSMAKER]

I am having my engine rebuilt due to damage after a damaged oil filter. My tractor has always been just a bit under powered. I looked at replacing with a larger engine, but found it to be almost twice as expensive as the rebuild. I was looking for ways to boost the power without spending a fortune since I will have the engine apart. Not looking for a great jump, but a couple HP would be nice. Any suggestions

 

[dfkrug]

I am having my engine rebuilt due to damage after a damaged oil filter.
My tractor has always been just a bit under powered. I looked at replacing with a larger engine, but found
it to be almost twice as expensive as the rebuild.

I would have bought the 35hp version when I bought my CK30, but it was not out yet. It would be great
if you could find a used engine somewhere in the US, but I suspect you will not.

If you are going to replace the crank and rod bearings yourself in your 225 to repair oil starvation damage,
then I would think that adding a small turbo would be something you could take on.

If you are paying a shop for the rebuild, then I could see how that would cost a lot, and
getting a turn-key replacement engine would be "only" twice as much.

 

[dadster4]

There are several variables at play here, not just pressure and volume. If you are adjusting for more volume
in a diesel FI system, as PUMP points out above, then your pressure is not usually variable. Clearly
there are limits to the adjustments available within some narrow range. Timing of these mechanical
pumps is often pretty simple: on my JDs, you just loosened a couple of bolts and rotated
the whole pump a few degrees either way about its input shaft axis.

I have yet to mess around with my Kioti FI system.

This is how I see it... With mechanical pumps, the injector itself regulates the pressure, vaporization, and timing of the injection cycle, because they are driven by a cam. With electronic, the computer determines the timing, pressure is determined by the pressure developed by the pump, and the injector nozzle handles vaporization.
In a large 4400 HP duel fuel diesel, it requires much more air for oil than it does for natural gas, the turbos rev up like crazy when running on oil. Proper combustion is usually determined by the temperature of each of the 12 cylinders and adjusting the valve lash for final tuning... which has to be done weekly!

 

[Kiotikarl]

I have turned/cranked up the fuel pump on my CK30 Gear. 2010 model. Over 700hrs since and no problems.
The + : lots more power, No more bogging down, rarely use the low now.
More Hp at the PTO, I no longer have to stop or slow down when blowing snow.
The - : Takes as much fuel as my dad's DK45SEC Hydro.
The loader is black from all the smoke.
Thats pretty much it, as much as i can think of.

 

[K man]

Is this normal for the blower or loader to be black from the smoke at start up. My blower is black from that I just hope it is not a malfunction of the engine. Any thought on this or to prevent it.

 

[mpham]

My ck20 loader arms were always covered in soot. Normal for these machines. Exhaust exit is in a bad position. Start up and shut down makes dirtier smoke.

 

[Looking4new]

Is this normal for the blower or loader to be black from the smoke at start up. My blower is black from that I just hope it is not a malfunction of the engine. Any thought on this or to prevent it.

It is normal. The way around it (I will be doing it after mine is paid for) is to make the exhaust pipe into a stack. I am doing mine as a straight pipe with 3 90* elbows in it and a slashed 45 at the top.

 

[K man]

I had my dealer cut out the tip and install a slightly downward spout but still dirties the snowblower. Not sure about a stack though probably would not look right and you would have to go so high as not to inhale the fumes. When you do please post pics of it as I am really curious about the looks and elimination of the soot.

 

[Looking4new]

I have a cab on mine and I figure the slash tip will point to the left side.
This will be a fall project.

 

[mike69440]

I turned up the fuel a bit on my L39 Kubota.

Results were a slight by measurable increase in torque, minimal increase in peak power. Just a faint hint of smoke under heavy load. I sure would like to know how to get more out of it.

 

[pmsmechanic]

Just curious.

 

[powerscol]

I have turned/cranked up the fuel pump on my CK30 Gear. 2010 model. Over 700hrs since and no problems.
The + : lots more power, No more bogging down, rarely use the low now.
More Hp at the PTO, I no longer have to stop or slow down when blowing snow.
The - : Takes as much fuel as my dad's DK45SEC Hydro.
The loader is black from all the smoke.
Thats pretty much it, as much as i can think of.

Could you please explain how you did that? I'm sure a lot of folks would like to know.

 

[IH782]

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. 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.

I have never heard of "lowering" hp on a diesel by adding to much fuel with a stock IP or even a mildly modified one. When a diesel begins to run to rich, EGT's can creep up quick, but HP never goes down. On a gas engine you will loose power, but not on a compression ignition.

 

[mj007]

Is this normal for the blower or loader to be black from the smoke at start up. My blower is black from that I just hope it is not a malfunction of the engine. Any thought on this or to prevent it.

I park with the bottom of the loader vertical (cutting edge resting on floor) as it seems to belch the black smoke at start-up.............helps some but I think that cutting the tip off of the exhaust pipe, and welding it back on after turning it clockwise to direct the exhaust in a more downward direction is the answer.........just haven't taken the time to get it done.......yet!

 

[K man]

I lay my loader down like you do all the time. I think the reason why I see the black ( soot) is mostly on my front blower as it is orange and of course it shows more than the loader which is all black. I have cut off the tip and re-welded it at a downward position but somehow still blackens the blower but not as much as before, Will have to try a different position till I get it right.

 

[tman1020]

I have turned/cranked up the fuel pump on my CK30 Gear. 2010 model. Over 700hrs since and no problems. The + : lots more power, No more bogging down, rarely use the low now. More Hp at the PTO, I no longer have to stop or slow down when blowing snow. The - : Takes as much fuel as my dad's DK45SEC Hydro. The loader is black from all the smoke. Thats pretty much it, as much as i can think of.

This is very interesting and awesome! First I have heard of on a CK tractor. I was under the impression it was not possible with this type of pump. Do you think you could help us out with instructions on how you did it so we can try it to?

 

[K man]

Yes, I am also and curious to know how you did it kioticarl.

 

[Looking4new]

And I make 3