Yanmar 2010 can it handle it?

[bsutton1705]

How do u tell if governor ooened up? I did push the foot throttle down and if it wasnt bogged down much it would pick back up but the times i had to pull it out of gear the foot throttle made no difference thats why i hit it to neutral to let the engine pick back up

 

[winston1]

If your engine starts slowly pulling down and the load is not surmountable then you should be able to hear the engine gain speed because of the governor opening the fuel rack more. Very much like when you pushed the foot throttle and it picked back up. Sounds like you might be loading it more than it is able to muster.

 

[clemsonfor]

Yea I agree it still won't burn fuel that is being delivered even if governed does not open. But still will be black or grey. I agree

 

[clemsonfor]

Still should blow black or grey smoke under heavy or too much load. If engine is slowing that you need to go to neutral to catch up there should be black? Strange

 

[bsutton1705]

Would it be a puff or a pretty good cloud?

 

[winston1]

Depends on overload. Continuous overload would normally produce continuous black smoke. Instantaneous but not continuous overload would only puff black smoke.

 

[normde2001]

Don't worry about the smoke. If it's bogging down simply grab a lower gear.

 

[clemsonfor]

Don't worry about the smoke. If it's bogging down simply grab a lower gear.

Were not saying we want his tractor to smoke is more interesting why he is not smoking when he get under a heavy load? Its not a teir 4 tractor or anything so i am curious why a 35 year old tractor does not roll coal every now and then..i think winston is intriqued as well?

My tractor will have clear exhaust when normal bushogging. Go through a thick spot and it turns kind of grey is and puffs and if its a continuous spot will roll coal till i lift the mower, get into thinner grass or stop and grab a lower gear. Heck if i hit a pretty good sapling, say an inch in diameter it will puff and split second of smoke from that load.

But if it runs and has full power and throttles up and down i agree dont worry too much about smoke or lack there of!

 

[bsutton1705]

It feels like it has full power and all seems operational but the only time i see black smoke is when i first fire it up it will puff a black ball then when i first throttle up it will puff greyish looking then just run and if it bogs it will just bog down. I will bush hog more this weekend and see if it blows black or stalls before i get a lower gear

 

[Neat 1500]

Don't stress. Mine doesn't blow much either and it's been the same for 7 years only when you really load it up or it bogs down. And even then it's not much smoke.

 

[careyo63]

My Ym2000 doesn't smoke much either. Only when I Start it up and when I Bog it down so much it's about to Stall out. Been like that for 8yrs. and almost 500Hrs. by the Tach. Awhile back I put it to work the hardest since I owned it, It smoked and blew out alot of Carbon Bombs when It was Loaded Down and close to stalling. It still starts and runs like it always has. No smoke or oil loss.

 

[clemsonfor]

Yea there is not really black smoke till you load it down hard. I am not talking about normal bushhogging. Even cutting tall waist deep grass i dont smoke. Its when i am in the wrong gear or its pulling it down to stall i get the smoke. I will smoke if i stomp the throttle down when just driving for a second or two till up to speed.

I too have no oil loss as well.

 

[bsutton1705]

Sounds like mine is the same as you guys is. Thxs for all the help

 

[kenmac]

Mine don't blow much smoke either. I get more smoke from my Cummins

 

[Neat 1500]

Mine don't blow much smoke either. I get more smoke from my Cummins

Type in "Diesel lope" in YouTube and have a look, then you'll see cummins and the like coalin' like a steamtrain......

 

[bsutton1705]

Git a question about the governer someone brought up. I noticed today that while driving up a 10 ft long hill the tractor kinda acted like it wanted more juice but didnt rev any. Should it? Kinda like a mower revs alittle when u hit a thick part of grass

 

[winston1]

Doesn't seem to me these grey Yanmar governors are near as sensitive as many of the old gas engine governors. Not being there I can only say if your rpm drop was significant then the governor should have responded.

 

[bsutton1705]

It was about 200 rpm drop. What do u say is significant?

 

[California]

Just thinking out loud here - These have standard pto rpm about 2200 rpm, and a torque peak at 1800 rpm.

So losing a little rpm when the going gets tough doesn't mean its going to stall, its just going to run a little slower, but with adequate torque to keep moving.

So this 200 rpm drop is harmless.

Ok, that's theory (as I see it). Makes sense?

 

[winston1]

Just thinking out loud here - These have standard pto rpm about 2200 rpm, and a torque peak at 1800 rpm.

So losing a little rpm when the going gets tough doesn't mean its going to stall, its just going to run a little slower, but with adequate torque to keep moving.

So this 200 rpm drop is harmless.

Ok, that's theory (as I see it). Makes sense?

Makes sense to me but also seems a properly operating governor should respond with a 200rpm loss. Does it respond at any rpm loss? 300? 400?