4100 idling Rough at Low RPM

Nuru · Jun 22, 2006

i took my 4100 to the dealer and they have been trying to find out what is going on with it. It is idling rough at under 1300 rpm, but runs fine above that. They do not seem to be able to determine what is wrong, even after speaking with JD. Anyone have any suggestions?

OBTW - Getting 200CX loader with Ballast box in about two weeks! first loader, kinda excited - got some projects that my dirt scoop just won't handle very efficiently. Yes I do realize my Dirtscoop could have been used as the ballast box instead of buying one, but I got greedy.

RoyJackson · Jun 25, 2006

Nuru said:
i took my 4100 to the dealer and they have been trying to find out what is going on with it. It is idling rough at under 1300 rpm, but runs fine above that. They do not seem to be able to determine what is wrong, even after speaking with JD. Anyone have any suggestions?

This puts me in mind of a joke...
Guy goes to a doctor...says "Doc...it's hurts when I do this!!!"
Doc replies.."Then don't do that!"

Joke was somewhat shortened...

Anyway, why idle your tractor at such low RPM? If it seems rough at 1300 RPM, just increase your idle RPM to about 1500.

I never idle my 790 below 1200...and more often, closer to 1500.

BTW, enjoy your new loader! Take it easy at first. That loader adds several hundred pounds to your 4100...most of it above the current center of gravity. It'll feel a bit more tippy until you get used to it.

if your tires aren't filled...fill 'em now, when the dealer installs the loader. Filled tires adds a lot to the tractors stability.

Also, the ballast box makes a world of difference when using the loader. it took me almost 4 years to buy one (of course, I just happened to get a great deal...(½ price for a never used box). I'm using about 600 lbs of sand. There's a lot of things you can use for ballast, but sand works best for me (you can always shovel some out if you have traction problems).

Nuru · Jun 25, 2006

Roy, that is definitely pretty obvious isn't it LOL!. I did run it that way and will again. I was wanting to find out if what was wrong was somethng serious.

Thanks for the COG input. I actually was unaware of that aspect since i have never had a loader on any tractors.

Filling tires, about how much weight does that add to the tractor? 300 - 500 pounds? The reason I ask, is that my trailer is rated at a GVWR of 3000 lbs (2200), and a huge weight gain for the tractor and my trailer requirements will go up and its new trailer time - are the filled tires a must? Right now I get a bit squeamish when I tow the tractor with the mower deck! I bought this trailer as a low use item - trips to the shop. Hmmm, maybe its time to relegate it to carrying other things besides the tractor?????? Loader, Tractor, MMM, filled tires, seems like that would be well over 2200 pounds!

Yeah, I ordered the Ballast box. You got me wondering about using sand in bags to load it up. I originally thought of using my Dirtscoop and bags of salt, as I am very good at getting it on and off the tractor (It rests on a furniture dolly when not on the tractor). I guess I could put the Ballast box on one too or on the Dirtscoop when it is not "in play"

I am going to install the loader myself, however I might go ahead and ask the dealer to fill the tires while it is there, if they don't charge me too much for the search and exploratory surgery they did already.

Nuru · Jun 25, 2006

OBTW, that was the factory idle setting, so I left it there. I could have just set it at 1200 ansd left it and saved me some $$$$ at the dealer. I could have used that for an implement!

jdbower · Jun 25, 2006

Nuru said:
Filling tires, about how much weight does that add to the tractor? 300 - 500 pounds? The reason I ask, is that my trailer is rated at a GVWR of 3000 lbs (2200), and a huge weight gain for the tractor and my trailer requirements will go up and its new trailer time - are the filled tires a must?

Here's a table for AG tires:
http://www.rimguard.biz/hydro_flation_chart.htm

Luckily (?) my trailer would be overloaded with just my 2520 so it's not an option to tow it. Also check your hitch type, bigger trailers are heavier and my hitch is only rated to 5000lbs. It's new truck time once I get up the courage to tow my toys.

RoyJackson · Jun 25, 2006

"are the filled tires a must?"

In my opinion...yes!

That loader is going to make your 4100 feel more top heavy. Adding ballast to the tires will add weight (of course) which increases inertia...thereby more resistance to doing a side rollover. Believe me of the difference between having a loader installed and not having one. You'll notice the difference the first time you operate your machine.

Don't get me wrong. You'll enjoy your loader. They make many chores much easier!

Nuru · Jun 25, 2006

jdbower said:
Here's a table for AG tires:
http://www.rimguard.biz/hydro_flation_chart.htm

Luckily (?) my trailer would be overloaded with just my 2520 so it's not an option to tow it. Also check your hitch type, bigger trailers are heavier and my hitch is only rated to 5000lbs. It's new truck time once I get up the courage to tow my toys.

Well, I am not even up to your hitch strength unless i add a bar. I think mine is 3800 max. If I eventually trade up to a 2520, I think that I will no longer use the trailer for towing the tractor.!
Might be that way if I get the tires filled - looks like they will add quite a few pounds!!!

Nuru · Jun 25, 2006

Roy, I have some sloping areas on my property, where I need to cut the grass with my tractor. How will the filled tired affect that? Better or make is worse on the hills?

Also what do you recommend for filling liquid?

RoyJackson · Jun 26, 2006

Nuru said:
Roy, I have some sloping areas on my property, where I need to cut the grass with my tractor. How will the filled tired affect that? Better or make is worse on the hills?

Also what do you recommend for filling liquid?

Filled tires provide more stability on slopes. that weight down low lowers the tractor's center of gravity.

As far as filling...I have windshield washer fluid.

smokedtires · Jun 26, 2006

I agree with Roy, having the tires filled is a very good idea if you'll be using a FEL on your tractor.

I don't know what you paid for the ballast box, but a box blade also makes a good ballast and it is a very useful tool that goes well with the FEL

RalphVa · Jun 26, 2006

Nuru,

I'd suspect some deposits on the injectors causing them not to spray good at low rates. Would be worth trying some Chevron Techron diesel additive. I've used it twice in the life of my old Benz. Its symptoms were pinging at constant speed. Cleared it right up.

My 4010 will idle down to 1,000 and smooth. Think that's the specified idle speed on it after breakin. It's easy to reset.

Ralph

Nuru · Jun 27, 2006

I am gonna try that. After coming back from the dealer, my unit wqas idling fine down to 1100 rpm, still vibrates at 1000 rpm. I will try the additive and report back to the forum.

Nuru · Jun 27, 2006

Thanks Roy, I am working with a local shop to get it done. They seem to be having some issue with findingg my tire's size for tubes. One of our local dealers recommend i get tubes for my tires as they will protect against sidewall separation?

Nuru · Jun 27, 2006

I paid $197, but I also have a Dirt Scoop, so it could be used too with weights and stonees piled in it.

RollTideRam · Jun 28, 2006

Just for referance, My 2520 weighs 2420# with the loader off and the 62d on.
After I weighed it, I started hauling it on my small 6.5 x 12 trailer. It has a 3500# axle and a capacity of 2800#. It fits ok and surely I'm saving fuel instead of using my 18' car hauler. JC

Nuru · Jun 28, 2006

RollTideRam a couple of questions:

Are you saying that your trailer GVWR is 2800 pounds?
Or

Are you saying the capability of your trailer is 2800 pounds plus the weight of the trailer?

The reason i ask is that if the GVWR is 2800 pounds, that means the towing capacity is that minus the trailer's own weight?

Nuru · Jul 9, 2006

RoyJackson said:
"are the filled tires a must?"

In my opinion...yes!

That loader is going to make your 4100 feel more top heavy. Adding ballast to the tires will add weight (of course) which increases inertia...thereby more resistance to doing a side rollover. Believe me of the difference between having a loader installed and not having one. You'll notice the difference the first time you operate your machine.

Don't get me wrong. You'll enjoy your loader. They make many chores much easier!

Roy and All, I found someone local who fills tires with recycled anti-frreeze (recycled as in cleansed/strained). I plan to take advantage of the proximity to my house, so this is only 2 - 3 miles away. I will let you know how it works out.