I Still Hate My Tractor

[buickanddeere]

I agree. All this will be is a sick engine with a turbo on it. The dyno story is suspect.

 

[the old grind]

We have to remember that Fred has the cab, heater, AC, whatever comes with that... so even more weight to lug vs other HST L3940s, and must've made the power loss more noticeable. Bra-vo for the thorough testing/reporting. :thumbsup:

The times I had big power drops was when I had the 3PH's feedback lever out of adjustment. Say when moving snow, I'd feel the engine bog & drop 4 or 5 hundred rpm if raising the FEL while moving. I be reminded to lower the BB that smidge until ti; I could hear the load come off the motor, and my hydraulics weren't working the motor more while in bypass. Bog would be gone and I'd be scooting again with but a hundred or two less rpm vs twice that otherwise. Just sayin' ... and Fred's covering a lot of bases.... btw: I still keep a lift lever down slightly from the top stop after gaining the habit.

 

[Chilly807]

That's another couple of issues.. he's got the hydraulic pressure increased to 3000 psi, which shouldn't be a problem unless something is forcing it to go over the relief valve, or the hydraulics are being used heavily. Maybe the feedback rod is mis-adjusted too? Another member is having that problem now as well.
Plus the weight of the cab, AC running, HST losses, etc. Have to keep in mind there's not a lot of power to begin with, every thing eats a little bit.
A friend of mine had a 3240, he found it was a bit light on power for the size of the machine, although he had a 'hoe attached to his.

Sean

 

[nybirdman]

We have to remember that Fred has the cab, heater, AC, whatever comes with that... so even more weight to lug vs other HST L3940s, and must've made the power loss more noticeable. Bra-vo for the thorough testing/reporting. :thumbsup:

The times I had big power drops was when I had the 3PH's feedback lever out of adjustment. Say when moving snow, I'd feel the engine bog & drop 4 or 5 hundred rpm if raising the FEL while moving. I be reminded to lower the BB that smidge until ti; I could hear the load come off the motor, and my hydraulics weren't working the motor more while in bypass. Bog would be gone and I'd be scooting again with but a hundred or two less rpm vs twice that otherwise. Just sayin' ... and Fred's covering a lot of bases.... btw: I still keep a lift lever down slightly from the top stop after gaining the habit.

I found exactly the same on my L4240......after three trips to the dealer,the district rep came up with this solution.Just out of adjustment,at least I know what it is now.

 

[Chilly807]

I found exactly the same on my L4240......after three trips to the dealer,the district rep came up with this solution.Just out of adjustment,at least I know what it is now.

Are you saying they didn't adjust it, and you still can't move the lever to the fully raised position? It's a fairly easy adjustment to make.
The one I mentioned was an mx5100 in Texas, I think it was..

It really surprises me to see this, it's not hard to get it right before it leaves the factory. I played with mine a bit while I was working on the 3-point valve, ended up leaving it pretty much exactly where it was to begin with. About an inch or two of free travel at the top of the range of motion, measured at the end of the lower arms.

I would think the higher capacity pumps on the GL series would put more load on the engine than mine, especially if the hydraulic relief pressure had been increased to 3000 psi.

Sean

 

[s219]

I'd be surprised if any tractor dealership had the capability to dyno a tractor engine properly. I would have asked to see their dyno and the test results. I bet it was a butt-dyno from some lazy employee who doesn't care and just wanted the customer off his back. What's next, will the dealer offer to test something in their tractor lab?

 

[Bluegill2]

I've thought from the beginning something wasn't right with the hydraulics.

The dyno story doesn't hold water either.

Too much stuff goin on here!

 

[The Fred]

The 3PH upper limit seems set correctly, the engine quits laboring when it gets to the high point. I had this happen on my other tractor (the good one) one time while I fooled with that adjustment to get my woodchipper higher off the ground for transport. I went a little to far and the hydraulic system went into relief, you could hear the engine laboring badly. I'm well aware of the sound/feeling when this happens.

Dealer DID tell me that the smaller tractors are hard to dyno because their PTO dyno is a larger one. Either way I feel I am on the right track with the turbo thing. It's a no brainer. The power should go up to just under 60hp. which still could be marginal.

Back to the milling machine, Fred

 

[94BULLITT]

Sounds like you have been screwing with everything on this tractor.

Sent from my GT-P3113 using TractorByNet

 

[Midniteoyl]

I'd be surprised if any tractor dealership had the capability to dyno a tractor engine properly. I would have asked to see their dyno and the test results. I bet it was a butt-dyno from some lazy employee who doesn't care and just wanted the customer off his back. What's next, will the dealer offer to test something in their tractor lab?

It was prolly dyno'd at the factory and they were reading from the dyno sheet.. Dunno