Snow Tractor blows smoke and bogs down

[MontanaBoz]

I have a B2650 with a front end B2782b snowblower both with 80 hours. My tractor runs fine but blows black smoke and bogs down when using the snowblower. I've tried going slower but at WOT and it happens even with minimal snow. In general, tractor seems to feel underpowered.

What's the cause and more importantly, how do I fix this?

I suspect:
1. Water in fuel?
2. Blocked air element (I've changed air filter)
3. Fuel filter needs replacement?
4. I've greased the chain and zerks etc

Thanks for your help!

 

[nyone]

Black smoke is unburnt fuel. I would not think its fuel related.

 

[Avenger]

Guessing you have a DPF? Is it clogged, have you done a regen at all?

 

[nybirdman]

Guessing you have a DPF? Is it clogged, have you done a regen at all?

No DEF on a B2650;I would guess bad fuel.Add PowerService and try again.Summer blend fuel?

 

[MontanaBoz]

My guess too. Not sure where to go from here though. Any recommendations? Thanks!

 

[MontanaBoz]

I thought of that too. My tractor does not have an automatic regen. Can I do it manually?

 

[MontanaBoz]

Thanks! Wasn't sure about DEF. Could there be water in the fuel...if so how do I get rid of. Winter blend fuel.

 

[Thomas]

Add some diesel additive increase RPM's little more.

 

[MontanaBoz]

Any suggestions which is 'best' for winter use? Thanks!

 

[jbrumberg]

This may prove helpful: DIY diesel problem diagnosis | Dog And Lemon.

Power Service and Howes are two of the more popular diesel fuel additive makers. Each company makes a variety of additives for specific needs like cetane boosting, anti-gelling, water removing, alge-scum removing, fuel stabilizing, etc.

Having a fuel-water separating filter helps manage the water.

 

[Jerry/MT]

Black smoke usually means too high fuel/air ratio like a clogged air inlet or air filter. You say you changed the air filter.

Did you look at the inlet ducting upstream and downstream of the air filter?


If the tractor is underpowered and not blowing black smoke then I'd say you have restricted fuel flow and that's usually a clogged filter or some debris in the fuel tank that's clogging the fuel outlet on the tank. Check the fuel flow out of the filter. It should pretty well gush out continuously. If it dribbles or is intermittent, start working your way bck to the tank out let looking for pinched lies, etc. Some tanks have screens on the outlet and they can clog with debris or bacterial contamination from water condensation in the tank.

 

[TimP]

I'm with Jerry/MT.

Check for a clogged air filter.