Tractor idling

[scootr]

My 2018 MX5200 Regens at the drop of a hat. Seems like every 30 hours or so. Regen 3 times in 100 hours so far. I try to keep the rpms up. 1500 for traveling, 1800-2300 for work. This is often more rpms than needed to accomplish the task. Still it does it again and again...

 

[Rockbadchild]

Clearly the other posters here are not considering the regen systems now incorporated into many new tractors. If your tractor has one, know that "scootr's" advice is sound and you should disregard the others.
So then that is the question... does your tractor have this kind of emmision contol system or not?

he dose not... he mentioned it on post #13

 

[Too many Kubotas]

Every start of a diesel lets off a nice puff of black smoke that the DPF must catch.

Glad my diesels don't do that. But the 6040 does sometimes put out a puff when shifting gears. That does not keep me from shifting it as needed.

 

[Too many Kubotas]

Starting any engine accelerates wear (no oil pressure for a short time). Idling for a short period will result in less wear than starting and stopping it.

There's a big difference between cold starting an engine, one that has sat for an extended period of time, and restarting one which has been shut off for only an hour or six.

Oil doesn't magically disappear from the bearing surfaces when an engine is turned off. The oil film will remain for quite a while. Now, there are designs where the filter is allowed to drain down and in those cases there can be a lack of, or at least low, oil pressure right at startup.

I really dislike cold starts, where the wear happens, but once an engine has been started I have no problem with shutting it down repeatedly.

 

[Too many Kubotas]

My 2018 MX5200 Regens at the drop of a hat. Seems like every 30 hours or so. Regen 3 times in 100 hours so far. I try to keep the rpms up. 1500 for traveling, 1800-2300 for work. This is often more rpms than needed to accomplish the task. Still it does it again and again...

Apparently some diesels (Cummins in pickups, for example) regens based on time, no matter what the circumstances are. Sounds like your tractor is doing the same thing.

 

[Deleted member 371759]

Pre-Oiler and Back-Up Engine Oil Pump Have thought about this a lot

 

[rScotty]

Clearly the other posters here are not considering the regen systems now incorporated into many new tractors. If your tractor has one, know that "scootr's" advice is sound and you should disregard the others.
So then that is the question... does your tractor have this kind of emmision contol system or not?

What he says bears repeating. Us oldtimers can forget that there are now so many new tractor owners who are not aware of diesel engine history. It has been heavily impacted by emissions regulations.

Diesel engine design took a major change about 2012 to 2014. Before then, tractors were commonly idled a often and for long periods. They were made to do so. They ran very lean at clean at idle and idling them was common.

After that date the EPA mandated that all diesels over 25hp had to meet higher standards for soot particles. Most did that with Diesel Particle Filters (DPF) that require higher throttle use and regeneration.

Bottom line is that many older diesels idle OK because they were deliberately designed to do so.
Newer ones are not made to idle for long periods. It is as simple as DPF or not.

 

[Rockbadchild]

As for myself, I don't have the DEF emission system, I have no issue doing one or the other it all depend on the time... 5 minutes or less I would let it run 5 minute or more I would shut it down... so hooking up implements I let it run, getting down to pick up things I let it run, if its something that I don't know how long it will take or if I know it will take some times I would shut it down.

 

[scootr]

Apparently some diesels (Cummins in pickups, for example) regens based on time, no matter what the circumstances are. Sounds like your tractor is doing the same thing.

Maybe so ? I'll have to experiment a bit to find out. Seems to me I may be running excessive rpms (higher fuel consumption) than needed if the dam thing is just counting time not particulate build up.

 

[Roger66]

What he says bears repeating. Us oldtimers can forget that there are now so many new tractor owners who are not aware of diesel engine history. It has been heavily impacted by emissions regulations.

Diesel engine design took a major change about 2012 to 2014. Before then, tractors were commonly idled a often and for long periods. They were made to do so. They ran very lean at clean at idle and idling them was common.

After that date the EPA mandated that all diesels over 25hp had to meet higher standards for soot particles. Most did that with Diesel Particle Filters (DPF) that require higher throttle use and regeneration.

Bottom line is that many older diesels idle OK because they were deliberately designed to do so.
Newer ones are not made to idle for long periods. It is as simple as DPF or not.

Mine is a Tier 4 era, but under the HP cutoff. It's a Mitsubishi S3L2 engine.