RX 6010 Cold Start, Normal?

/ RX 6010 Cold Start, Normal? #1  

thorholt

Bronze Member
Joined
Aug 16, 2013
Messages
93
Location
Mn
Tractor
Kioti RX6010PC
Hello, this is a video of my 6010 during a cold start, seems to smoke excessively and also has some knocking going on until it evens out, it has 13 hours on it now and it has gotten no better or worse, my nearest dealer is 100 miles from me so I would like to find out if it is normal or not before hauling it back, Thanks!

Kioti RX6010 cold start - YouTube
 
/ RX 6010 Cold Start, Normal? #2  
I'm guessing it's a timing issue. That's definitely more smoke and knock than normal.
 
/ RX 6010 Cold Start, Normal?
  • Thread Starter
#4  
I sent the Vidio to the dealer and he called back and said not normal so he is going to find out what might be causing it, will post back when resolved, Thanks
 
/ RX 6010 Cold Start, Normal? #6  
Early RX6010's had a recall for a faulty glow plug controller. Might be a good place to investigate.

It really looks/sounds like some of the glow plugs aren't doing the job (for whatever reason). I base this on the behavior of my Diesel car (before and after changing glow plugs).
 
/ RX 6010 Cold Start, Normal? #7  
My RX6010 throws out a puff of smoke on startup and then clears right up with no clanging. It doesn't sound normal
 
/ RX 6010 Cold Start, Normal?
  • Thread Starter
#8  
I tested the power to the glow plugs during the cold start, they had 11 volts during the 10 second cycle, I will need to take the loader off to test the resistence of each plug as it is not easy to access the top of the engine with it on and I need to remove the buss bar to test each one, I am guessing they are ok though, the battery voltage goes to 12v after the cycle.
 
/ RX 6010 Cold Start, Normal? #9  
I tested the power to the glow plugs during the cold start, they had 11 volts during the 10 second cycle, I will need to take the loader off to test the resistence of each plug as it is not easy to access the top of the engine with it on and I need to remove the buss bar to test each one, I am guessing they are ok though, the battery voltage goes to 12v after the cycle.

So far so good. It means the buss bar is getting power and (at least) some glow plugs are drawing current (as indicated by pulling the voltage down to 11 v from 12+v at the battery). In most glow plug systems the glow plugs continue to get power for several (like 15) seconds after the light goes out. When the light goes out it means that OK to crank now, but the glow plugs should still be getting power. I don't have any tech data for your model but I'm reasonably sure (based on other Diesel experience) that the glow plugs should be powered during preheat (light on), maybe during crank, and certainly during the initial 10-15 seconds after engine start. Maybe I'm wrong but I'd check to be sure the glow plugs are powered immediately after start before removing the loader.

Removing the loader is easy but reinstall can be a real pain unless you did the removal on a flat, level surface. I think (if it were me) I'd drop the quick-attach bucket, run the loader all the way up, and rest it against a tree or something solid instead of removing it. But then I don't have a solid, flat, level place to work.
 
/ RX 6010 Cold Start, Normal? #10  
Hello, this is a video of my 6010 during a cold start, seems to smoke excessively and also has some knocking going on until it evens out, it has 13 hours on it now and it has gotten no better or worse, my nearest dealer is 100 miles from me so I would like to find out if it is normal or not before hauling it back, Thanks!

Kioti RX6010 cold start - YouTube
What was the temp when you took the video? Glow plugs in warm weather should not affect the starting and smoking that much. I have worked on diesels many years, I would not be happy with this. It acts like the injection pump may be loosing its prime/ bleeding air into the system. I am not familiar with this engine, but at the time of set up, each tractor has to have fuel added and the system bled. Most have a bleed screw. I would check to see if it was tight, and inspect all my lines for tightness. Better yet, I would call warranty on this one.
 
/ RX 6010 Cold Start, Normal?
  • Thread Starter
#11  
It was about 65 degrees, I agree that it seems like air in the system, I was hoping for something that I could fix myself to avoid hauling it 100+ miles one way to the dealer, they watched the video and were going to conact someone who has more experiance on the tractor about the fix, Thanks for your input!
 
/ RX 6010 Cold Start, Normal? #12  
You might check the amp draw of the plugs it is much more accurate. Not sure about your application but most would draw 80 amps cold decreasing as the plugs warm up. 20 amps each times 4 plugs. A current clamp over the main glowplug harness is an easy test.

Do you have access to one of those infra red temp guns? You could shoot each glowplug and watch them heat up as someone turns the key on.

RX 6010 is a nice tractor I almost bought one it was just a little bigger than I wanted but the price sure was right.

Good luck, Fred
 
/ RX 6010 Cold Start, Normal? #13  
You might check the amp draw of the plugs... A current clamp over the main glowplug harness is an easy test. ...

Not sure about this. My current clamp only measures AC amps (not DC).
 
/ RX 6010 Cold Start, Normal?
  • Thread Starter
#15  
Thanks for the input Guys, I am going to haul it home from the cabin soon and I will check amp draw when its back at my shop where I the tools I need to check them, I am a Auto Mech so I have a very accurate amp meter I will use to test each plug, The circuit has a 60 fuse in it and a fairly small relay to run it so I am thinking that the amps of each plug is going to be around 10 or so.
 
/ RX 6010 Cold Start, Normal? #16  
/ RX 6010 Cold Start, Normal? #17  
It was about 65 degrees, I agree that it seems like air in the system, I was hoping for something that I could fix myself to avoid hauling it 100+ miles one way to the dealer, they watched the video and were going to contact someone who has more experience on the tractor about the fix, Thanks for your input!
At 65 degrees, the tractor should start with out problems with total glow plug failure. It may run a little rough for a few seconds, and then smooth out. I have seen many diesels leak down, while they set, but run fine after the air is pushed through. It sure act like the problem is in the injection system. A bad glow plug system will only acerbate the problem during the cold months.
 
/ RX 6010 Cold Start, Normal? #18  
I was just wondering if you ever discovered the problem. I just bought a used RX6010 and it is doing the same thing with 239 hours on it and if this is not normal I would like to have an idea what the problem is to get the dealer/manufacturer to correct.
 
/ RX 6010 Cold Start, Normal?
  • Thread Starter
#19  
It appears to be normal for these tractors, A friend of mine also bought a new 6010 and his is the same way, Smokes up the shop pretty good when you start it, They have a calibration issue with something on the fuel system but I doubt we will ever see it fixed, most of their attention is now focused on tier 4. Maybe if enough of us complain about it they would fix it?
 
/ RX 6010 Cold Start, Normal? #20  
I wonder if you had a bit more fuel, few more rpm on start up that might clear up some.
 

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