L5740 Cold Start

[MyJoBota]

This video is of a L5740 140hrs. Cold start (20 degrees f.) This tractor never fails to start but I believe it should start and run smoother than it does cold. What do you think?

YouTube - Kubota L5740 Cold start

 

[Robb71]

Does not sound that much worse than my M5040 on a 30 degree morning, but it has a different engine than yours.

 

[Samandothers]

I did not see what the RPM's may have been set at when you start. Does not sound too much differnt from my L4240. I usually shut it down at about 8 or 900 RPM's and then start at that until warm.

 

[PHILIP8N]

I have L3940 (no turbo). I have started as low as 0F, just to see if it would, it did. Are you holding your clutch in after it starts? I hold mine in for at least 10 to 15 seconds to minimize load on cold engine. Fresh fuel? Winter fuel? I also run Power Service year round. Mine will knock and smoke for 30 seconds, but then it runs like normal. I hear a miss or lope in yours. Philip.

 

[leonz]

This video is of a L5740 140hrs. Cold start (20 degrees f.) This tractor never fails to start but I believe it should start and run smoother than it does cold. What do you think?

YouTube - Kubota L5740 Cold start

You have the identical problem that jeep freak had with his B3200.

The injection pump timing on his tractor was off by 8 degrees and not top dead center as it was advanced 8 degrees and he had his dealer reset the injection pump to zero degrees TDC for the engine type - happy camper, no smoke, no tough idling and low idle, easy starting.




Kubota USA has beeen changing the injection pump timing on the small engine fore tractors to produce less emmisions and particulates in order to make the EPA happy because of the new pollution regulations for small diesel engines.



I would have your dealer come out and reset the timing to zero TDC for the engine as it is still under warranty as it will not stop doing ths no matter the time of year.

 

[TripleR]

I start my L5030 at half throttle as per my manual and it sounds as though you are starting much lower; not familiar with the L5740 so it is kind of hard to tell, but mine seems smoother with less smoke.

leon and others know a lot more about this than I, so defer to them.

 

[RADIUM]

Looks about right for a diesel engine. Try hitting your glow plugs twice, is that model a turbo?turbocharged engines seem to start a little fussier, as others have suggested winterize fuel power service additive or whatever brand you like, check out my starting video -4 in the new video section 4 hits of the glow plugs fires right up the hydraulic pump just takes a while to stop complaining nature of the beast take care

 

[leonz]

His timing is way off, and the crank should have a balanced load even cold without the smoke (been there done that with Caterpillar forklifts)

Hopefully he will call his dealer today and they will relieve him of the tractor for an afternoon and reset the timing to Zero T.D.C., and solve the issue.


I would be willing to bet you a beer that your timing is off as well
if your engine behaves like this as you own a small diesel frame
that fits in the EPA guidelines for exhaust emmisions control.

 

[RADIUM]

I'm sure you're correct, mine doesn't smoke like that, but I have observed many diesel equipment including old and new that smoke for the first few minutes of operation in extreme cold conditions.

 

[Country1]

Timing is defiantly off. I had the same problem with my Bobcat 442. Dealer said the same thing that they ****** timing at the factory for Emissions requirements. Better emissions, but the engine is harder starting and runs hotter. I made them change it and now it's much better. Get them to fix it. Your engine will start much better and last longer. Some of this EPA crappppp is getting out of hand.....