cold starting

[K man]

Hi fellow Kioti lovers. I have a question when starting the tractor after being parked over night. Where would you position the fuel lever when starting. I mean do you open the throttle all the way, half way or just a bit open or better what RPM is the safest. Thanks for any replies.
The reason I ask is to try and minimize the smoke at start up or is this normal.
Thanks
Gilles

 

[davesl708]

A little smoke is normal for the first second of startup. I put my throttle at about a quarter or less up from idle. I don't like to rev the engine to high before the oil is circulating. After start just let it idle a few seconds to get the oil moving then up 3/8 throttle for warm up.

 

[DK35vince]

I start mine at idle.

 

[K man]

Thanks guys that is basically what I do open throttle just a bit and then when engine has started I will open her up a little more and then back to idling once warmed up and wait for HST oil to warm up a bit.

 

[ritcheyvs]

I start at idle.

The Diesel power lever is not like a throttle in a gas engine. With the engine stopped, the injection pump rack is already spring loaded to the max power position, regardless where you have the lever. As the engine starts and comes up to speed, the centrifugal governor pushes back against the spring, moving the rack to achieve and sustain a stable idle RPM. If you move the power lever you command a higher RPM setting. As long as the idle RPM is stable, commanding a higher RPM is no benefit and will not warm up the engine significantly faster. Once the oil has fully circulated, light loading from operating hydraulics or driving will speed warm up. All this applies to pre-Tier IV.

 

[buickanddeere]

Start up smoke is not a problem and is nothing to be concerned about. If really concerned the block heater could be plugged in to raise the engine temperature to near normal operational levels.

 

[RSKY]

I always start and shut down a diesel at idle speed. With my CK20S I start it and stare at the gauges until the glow light goes off before I operate anything. I do not operate under any load until the temp gauge moves off the pin. Don't want to spend money on expensive repairs.

RSKY

 

[5030]

Any mechanically injected diesel engine, Kubota, Kioti, JD, caterpillar... anything mechanically injected, the pump internally sets the fuel at maximum delivery the second the engine is cranked and when it stars, the pump instantaneously reduces the delivery of fuel to the point at which the throttle lever is set at. IOW, no need to advance the fuel when starting, the pump does it for you. Why you get a puff of smoke everytime you start, hot or cold.

Electronically injected (Tier 4 final engines), advance the timing to do the same thing..... with no puff of smoke. Myself, I prefer a puff.

 

[buickanddeere]

I always start and shut down a diesel at idle speed. With my CK20S I start it and stare at the gauges until the glow light goes off before I operate anything. I do not operate under any load until the temp gauge moves off the pin. Don't want to spend money on expensive repairs.

RSKY

You are however wasting fuel and wearing out the cylinder walls with extended low temperature operation . Either plug in a block heater to move the needle off th pin. Or start using the tractor in a lower gear and lighter loads as soon as the oil pressure rises. Until the engine coolant has warmed up half way to th normal operating point.

 

[5030]

You are however wasting fuel and wearing out the cylinder walls with extended low temperature operation . Either plug in a block heater to move the needle off th pin. Or start using the tractor in a lower gear and lighter loads as soon as the oil pressure rises. Until the engine coolant has warmed up half way to th normal operating point.

I think you'll find that most operators manuals recommend warming the engine in very cold weather for a time before operating it at load. My Kubby manuals have specific warm up times.

No juice in my tractor barn anyway. The only thing that has a block heater is my diesel pickup and it only gets hotlined when I need it.