Rolling coal? Lots of soot under load - B2601

[JirafaBo]

I assume this is standard but wanted to check with the pros...

On startup I get a little bit of black smoke out of the front facing exhaust. Then when I initially rev it up after cold start I get a slight sputter and significant white smoke for a few seconds. Is that normal? The white smoke seems to be cold related and it may be worse if I don't let the engine warm up? Does that sound right?

Second topic.... Been slowly digging and moving a large mound of dirt to other parts of my property. When digging, under heavy load, the exhaust pumps out a bunch of black smoke/soot. Since the B2601 has that front facing exhaust, the left side of my bucket is just coated in soot. Is this common? Pics attached.

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[North Idaho Wolfman]

Sounds normal to me.
Throw some stanadyne in it and see what that does for you.
It's a cetane booster (think Octane booster) in a gasoline engine.
Raising the cetane will cause no ill effects, but might help it run a little better.

I would also check the fuel filters and separators for any water.

 

[85Hokie]

Also - check that air filter? Really clean?

 

[jyoutz]

On my old pre emissions tractor, this was the normal operating situation. I have not had black smoke sooting up my loader or belching from the exhaust on my current tier 4 machine. Does the B2601 have tier 4 emissions? If not, this sounds pretty normal.

 

[North Idaho Wolfman]

On my old pre emissions tractor, this was the normal operating situation. I have not had black smoke sooting up my loader or belching from the exhaust on my current tier 4 machine. Does the B2601 have tier 4 emissions? If not, this sounds pretty normal.

Nope, no emissions on that one.

 

[mcmxi]

My BX25 was on the sooty side but nowhere near as bad as the OPs.

I find myself wondering if there's a change in soot production after @Rdrcr adds his turbo kit. I would expect a reduction but better to hear from the horse's mouth.

@jyoutz, you might be surprised at how little soot, if any, is produced by the MX engine once the ECU is reprogrammed and the DPF/EGR system is removed. Smoke and mirrors for sure.

 

[Smokeydog]

Few winters ago noticed the B26 having more black smoke when at operating temp. Do usually run with Stanadyne. Checked air filter. Housing full of red oak acorns! Packed cleanly by mice(?) with no damage to air filter. Screened both tractor’s air box inlets. No problems since.

 

[John D 2]

My 2601 puffs out black smoke on start up. It also puffs out a small amount on idle when I start my MMM.

So as long as the filters are clean it sounds normal to me.

 

[MOOTS]

Few winters ago noticed the B26 having more black smoke when at operating temp. Do usually run with Stanadyne. Checked air filter. Housing full of red oak acorns! Packed cleanly by mice(?) with no damage to air filter. Screened both tractor’s air box inlets. No problems since. View attachment 145191

Genius. I haven’t had a squirrel problem, yet. This will be an easy mod.

 

[dirtydeed]

If it really bothers you...add something like this:

 

[JirafaBo]

Sounds like it's pretty normal. When I was digging, I was pushing her to the max. This dirt pile was probably 80-100 years old so it was nice and compact. It was a slow slow process but of course I was really taking as much as I could get out of her 25hp. There was zero soot when I bought her so last owner was probably not giving her a real workout. I doubt he cleaned the soot bc he damn sure didn't touch up anything else to get her ready to sell.

I will try some stanadyn just to see if there is a difference.

 

[Tom Sestito]

I have a B2650 and work it hard, and I don't see near this amount of soot. I think this amount of soot is excessive.

 

[rc51stierhoff]

Good day.

To me it seems sort of relative to how much use places that much soot on the loader, if it bothers you. My B certainly puts some soot out as many above have described, but it only builds up to that extreme when I have not washed it for quite a while.

I guess my point is does it look like that after a fresh wash and then mow the yard or something and looks that sooty? Or is that after a summers worth use?

 

[JirafaBo]

Good day.

To me it seems sort of relative to how much use places that much soot on the loader, if it bothers you. My B certainly puts some soot out as many above have described, but it only builds up to that extreme when I have not washed it for quite a while.

I guess my point is does it look like that after a fresh wash and then mow the yard or something and looks that sooty? Or is that after a summers worth use?

This is after about 20 hours of digging. I only see the black smoke when I'm have too big of scoop and am giving it max power to try and bust free of the dirt that doesn't want to budge. I would not consider this normal use for most.

 

[rc51stierhoff]

This is after about 20 hours of digging. I only see the black smoke when I'm have too big of scoop and am giving it max power to try and bust free of the dirt that doesn't want to budge. I would not consider this normal use for most.

I normally notice the black smoke only at my initial start up(s). I’m not saying it’s not there all the time, but that’s when I see the puff of exhaust. During normal use i don’t notice it.

 

[hedgerow]

I assume this is standard but wanted to check with the pros...

On startup I get a little bit of black smoke out of the front facing exhaust. Then when I initially rev it up after cold start I get a slight sputter and significant white smoke for a few seconds. Is that normal? The white smoke seems to be cold related and it may be worse if I don't let the engine warm up? Does that sound right?

Second topic.... Been slowly digging and moving a large mound of dirt to other parts of my property. When digging, under heavy load, the exhaust pumps out a bunch of black smoke/soot. Since the B2601 has that front facing exhaust, the left side of my bucket is just coated in soot. Is this common? Pics attached. View attachment 145180 g
View attachment 145181

With that much in 20 hours I would sure check my air filters. I would go to a muffler shop and have a piece of pipe made to aim that smoke down but I hate cleaning diesel smoke off stuff. LOL

 

[jyoutz]

My BX25 was on the sooty side but nowhere near as bad as the OPs.

I find myself wondering if there's a change in soot production after @Rdrcr adds his turbo kit. I would expect a reduction but better to hear from the horse's mouth.

@jyoutz, you might be surprised at how little soot, if any, is produced by the MX engine once the ECU is reprogrammed and the DPF/EGR system is removed. Smoke and mirrors for sure.

Did you remove DPF and reprogram the ECU?

 

[Grandad4]

Just to pin down some basics about how you are operating your 2601. How long a warmup before starting work? Engine rpm and H, M or L range for loader work? Anything on the leading edge of the loader, such as a toothbar, to help loosen your dirt pile? Do you ease up or press harder on the HST pedal as the tractor digs into the pile?

These are some of the operator techniques and tractor setup considerations that can affect how hard the engine will have to work.

Not trying to blame you, but without knowing something about those things, no one reading an online post can know if excess soot is the result of an engine problem or the engine just really working hard for whatever reason.

 

[nbryan]

If it really bothers you...add something like this:

View attachment 145195

View attachment 145196

That unit would be torn off by the bush within a few months. I've already broke the tailpipe off of the B2650 twice. The latest welds are holding.

 

[nbryan]

B2650HSD here. For heavy digging I use higher revs, maybe 2200-2300 rpm (2500 is my unit's "operating" rpm) and if lugging enough to start any visible smoking I ease up on the operation a bit. It's the HST you're stomping too hard for the compact tractor to sustain. Especially while lifting buckets full of soil at the same time.

I'd advise to avoid lugging like you are doing, it seems, given the amount of soot you're generating after a few hours. My loader soot stains look like that after a few years, not hours.

Definitely check all your air filtration, too.