DK45 starting question

Coyote machine · Jan 4, 2012

If it's stumbling as bad as you say it is then there is very likely something wrong with the glow plug circuit. Salesmen are just that- NOT mechanics in most cases, so don't worry about things like: 'All Kiotis smoke', NO they don't!
Check the firewall relay connection, use the test light to check the time on circuit and if still smoking like a chimney on start get the dealer to properly service it for you.
Did it ever not smoke on starting?

chubby · Jan 5, 2012

Always smoked on cold start. And it is not firing on all 4 cyl, really clouds the barn. Showed my saleman how little the 7360ss Cub (mitsb) smoked and he said "oh its just one of those new tier 3 engines for cleaner burn". I said "looks like they failed". On warm start 0 smoke and no glow plug light. Yesterday @ 28f was the first time it smoked after first start of the day. But that was after a 30 min trailer ride home. I will check the glow plugs, I just thought being new and direct injection that this would not start without g/plugs.

Lloyd_E · Jan 5, 2012

Get it serviced! I started mine the other day. -13 Celsius, wind chill of -22 Celsius: cycled glow plugs once and it fire up with a little puff of blue smoke. Been sitting for a week outside is cold temps.

Even today with sub zero temps it fire up with no smoke.

Later...

grsthegreat · Jan 5, 2012

I did not have the heaters plugged in on my tractor for the past 1-1/2 weeks due to the unseasonably warm weather. It was 39f this morning and i went to start my DK45SE with 1 cycling of glow plugs. fired right up. no smoke that i noticed. Any mechanic that saying..those Kioti's always smoke is smoking something himself.

Im thinking glow plug issues on yours also

SSdoxie · Jan 5, 2012

Definitely check the glow plugs, if there is no problem have dealer check the timing. Last winter I had 3 new CT450s with similar problem,lots of grey smoke at start up, and a 3 were timed to the 40/45 specs. The 50 has different timing spec but someone at Daedong shimmed the pump for a 45. We reshimmed them and all started and ran like completely different machines. Not having another identical tractor to run side by side the owner didn't notice a problem until it got cold enough to show up during starting.

chubby · Jan 5, 2012

I did check firewall relay and it is pluged in properly. I didn't check glow plugs yet. New tractor should not need glow plugs, but then this tractor has has so many problems from the start. 48f in barn this afternoon started after checking relay connectors 20 seconds before all four cyl. fire, lots of smoke. That timing could be the ticket, this tractor was a New Holland dealers first shipment of Kioti's.

DK35vince · Jan 5, 2012

chubby said:
I didn't check glow plugs yet. New tractor should not need glow plugs,

Yes they do need glow plugs in cooler weather, new or not makes no differance
The Daedong diesel engine is indirect injection and mine has always needed the glow plugs to start smoothly without smoking.
The Kubota diesel engines we have at work are also indirect injection, and they will do the same thing in cooler weather since new. Cycle the glow plugs and they will start right up, smooth, no smoke.
Don't cycle the glow plugs in cooler weather and they will smoke and run rough for several seconds.

Coyote machine · Jan 5, 2012

DK35vince said:
Yes they do need glow plugs in cooler weather, new or not makes no differance
The Daedong diesel engine is indirect injection and mine has always needed the glow plugs to start smoothly without smoking.
The Kubota diesel engines we have at work are also indirect injection, and they will do the same thing in cooler weather since new. Cycle the glow plugs and they will start right up, smooth, no smoke.
Don't cycle the glow plugs in cooler weather and they will smoke and run rough for several seconds.

Yeah, What Vince said, and a BUNCH of the rest of us! My DK-40 will stumble in a heated to minimum 52degree F garage if I don't run the glow plug timer on first start each day. I know because it scared the c*a* out of me first time it happened....
Fix the glow plug circuit. Check timing too, if the glow plugs fail to remedy it.
Next case!

tinman955 · Jan 6, 2012

http://www.tractorbynet.com/forums/bobcat-tractors/188974-ct450-smokes-shutters.html

Here is a link of some of the same issues with Bobcat tractors.

Mine is a 50hp CT450 and they never got it to start what I consider good. They did everything including the re time...

Coyote machine · Jan 7, 2012

I'm NO expert on the subject of tractors starting in varied temperatures but I did read that the guy who had an injector and timing issues dealt with,( in the thread you linked to) said his dealer told him the injectors were back ordered and they got one from another dealer. That tells me that possibly since they were back ordered there may be a changed part number and a different supplier in the works OR it's just coincidence.
Then he said his now runs as well as yours AFTER having the work done to it?!:confused2:
If the way yours starts at any temp from 32 to 70 I wouldn't want to own it, especially for commercial use. Beware your warranty is limited if you use it for such purposes, so getting the issue resolved is even more paramount, IMHO.
The only time my DK-40se/HST Kioti starts like your Bobcat is if I just turn the key without giving it any glow. I'd contact selling dealer and see if there are any service bulletins from Bobcat on that series regarding hard starting even after using the glow plug circuit.