YM1610 Black Soot

[Gooner]

Hi everyone. Looking for some advice on how to cure a black soot problem from the exhaust of my Yanmar 1610. I've owned this tractor for 8 years and it's always blown the black liquid from the exhaust but seems it's time to try and resolve the issue. The bonnet is covered black.
Any advice would be very much appreciated.
Thanks

 

[JimRB]

Is the tractor stored in a shed? I put a tin can over the exhaust of my Yanmar made John Deere to keep rainwater out of the exhaust. Diesels make soot. You have clean fuel filters and air filters? My Yanmar made John Deere has two air filters, inner and outer. The JD fuel system has a water separator under the tank and a fuel filter by the pump. Dirty air filters can cause excessive soot. Clogged or restricted fuel filters can cause excessive soot. I once had a tank of biodiesel gell in cold weather in my VW TDI. I got pulled over because of all the smoke it was making. Car died 5 miles from home. I had to get it back home on a trailer. Once the biodiesel warmed up the gelled fuel melted. No more biodiesel in the cars or tractors.

 

[Gooner]

Is the tractor stored in a shed? I put a tin can over the exhaust of my Yanmar made John Deere to keep rainwater out of the exhaust. Diesels make soot. You have clean fuel filters and air filters? My Yanmar made John Deere has two air filters, inner and outer. The JD fuel system has a water separator under the tank and a fuel filter by the pump. Dirty air filters can cause excessive soot. Clogged or restricted fuel filters can cause excessive soot. I once had a tank of biodiesel gell in cold weather in my VW TDI. I got pulled over because of all the smoke it was making. Car died 5 miles from home. I had to get it back home on a trailer. Once the biodiesel warmed up the gelled fuel melted. No more biodiesel in the cars or tractors.

Hey Jim,

Thanks for your reply,
I keep it under cover and it also has an exhaust cap so can definitely rule out water problem.
Air filter is pretty new, but not checked fuel filters. I'll take a look at the manual and see where they are located and give it a look. (I'm a complete novice).
Thanks again

 

[thepumpguysc]

Do u idle the engine for extended periods of time.??
Don’t do that.. if your jumping off and back on, that’s fine..
But if you get off and shoot the bull with the neighbors and leave it running, your killing the tractor..
Any more than 5-10 minutes, SHUT IT OFF..

 

[Gooner]

Do u idle the engine for extended periods of time.??
Don’t do that.. if your jumping off and back on, that’s fine..
But if you get off and shoot the bull with the neighbors and leave it running, your killing the tractor..
Any more than 5-10 minutes, SHUT IT OFF..

It's never left to idle. I always shut it off.

 

[JimRB]

Take a picture of the tractor making this soot and post. I changed my fuel filter yesterday and put on a new water separator screen. Both plastic filter housings were filled with black gunk.

 

[careyo63]

I had that problem when I first purchased a YM2000. What I did was pulled the muffler and pour gas in it, Plugged the inlet and Exhaust ports. let it soak for a few Hrs.. Drained it and Blew it out with air. A massive amount of carbon came out. Exhaust manifold wasn't that bad.
I use to get oil bombs!! I had to do something!! Found out don't just wipe them off they smear. I'd see them on the hood and me!! That was a major improvement and I don't have the problem anymore. I make sure my cap lid stays clean to the day and can get a build up on it often. Wipes right of but super nasty!!
Also I can on my Yanmar and I think it can be done on yours is to turn the Muffler and Exhaust and bolt it on facing forwards. May want to try that and see if you can clean it out?

 

[Gooner]

I had that problem when I first purchased a YM2000. What I did was pulled the muffler and pour gas in it, Plugged the inlet and Exhaust ports. let it soak for a few Hrs.. Drained it and Blew it out with air. A massive amount of carbon came out. Exhaust manifold wasn't that bad.
I use to get oil bombs!! I had to do something!! Found out don't just wipe them off they smear. I'd see them on the hood and me!! That was a major improvement and I don't have the problem anymore. I make sure my cap lid stays clean to the day and can get a build up on it often. Wipes right of but super nasty!!
Also I can on my Yanmar and I think it can be done on yours is to turn the Muffler and Exhaust and bolt it on facing forwards. May want to try that and see if you can clean it out?

I'll give the cleaning a go. Already tried the turning 90 degrees facing forward which didn't seem to help, the wind just blows it all back in your face .

 

[Gooner]

Take a picture of the tractor making this soot and post. I changed my fuel filter yesterday and put on a new water separator screen. Both plastic filter housings were filled with black gunk.

A few pics to show the extent of the problem.

 

[newbury]

Reads and looks like "wet stacking".
link

If it's that basically your not using it hard enough.

/edit
Ran across that a lot in the Army with generators not being loaded down enough.

 

[careyo63]

Won't hurt that to clean it that's for sure. May have to do it a couple times. When I turned my Cap/Lid around just be careful it's will be easy to catch a low hanging limb etc.. Now mine stays back turned around like normal no oil bombs Etc.. While you have it off look inside the exhaust manifold for excess oil and carbon and clean it. Mine was nowhere near that bad Cardon in the manifold that looked dry and normal. My guess it's going to make a big difference

Attachments

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  YM2000 & Woods mower.JPG

  2.6 MB · Views: 410

 

[Gooner]

Reads and looks like "wet stacking".
link

If it's that basically your not using it hard enough.

/edit
Ran across that a lot in the Army with generators not being loaded down enough.

Thanks for the link, it certainly seems to make sense as I do tend to use it in lower revs.

 

[Gooner]

Won't hurt that to clean it that's for sure. May have to do it a couple times. When I turned my Cap/Lid around just be careful it's will be easy to catch a low hanging limb etc.. Now mine stays back turned around like normal no oil bombs Etc.. While you have it off look inside the exhaust manifold for excess oil and carbon and clean it. Mine was nowhere near that bad Cardon in the manifold that looked dry and normal. My guess it's going to make a big difference

Attachments

• 
  YM2000 & Woods mower.JPG

  2.6 MB · Views: 410

I'll give it a clean hopefully this weekend and see how we go. Thanks for the advice, much appreciated.

 

[redman135]

From the look of your exhaust you are running cold ,doing litle jobs and not getting hot enough to clear the exhaust. To fix it you need a job of a couple hours or more to rated pto revs under a good load (brush hogging, cultivating) to get some real heat in the exhaust to clean it out.
I used to get this problem in my MF135 when it only had light work and cold running. Harrowing a paddock after the cattle had eaten it out (commercial farm) would fix the problem.

 

[Norfolktoad]

Do u idle the engine for extended periods of time.??
Don’t do that.. if your jumping off and back on, that’s fine..
But if you get off and shoot the bull with the neighbors and leave it running, your killing the tractor..
Any more than 5-10 minutes, SHUT IT OFF..

I had the same problem with my 1610. This is known as "Slobbering" and I was able to rectify the problem, by changing the exhaust to a short forward pointing type instead of the vertical type.
This may be of interest https://forums.yesterdaystractors.com/threads/slobbering.926289/

 

[Gooner]

Thanks everyone for the advice. I removed the exhaust, gave it a good clean with petrol, changed all filters and running at a higher RPM, problem seems to have been solved . If the problem returns, I'll try turning the exhaust 90 degrees.