FarmPro 2425 No start and died while running!

[pollolittle]

Trying to help a neighbor fix his ride! He's convinced the motor is locked up and is on the fence to go buy a zero turn and turn the tractor out to pasture. I thought I would lend a hand, but unfortunately it appears this won't be simple and I am now in learn mode.

So, it is a FarmPro 2425. Was running fine and mowing, drove it up to the house, and while sitting there it died. Would not kick over or even attempt to kick over. Push the clutch in, and turn the keyswitch and it sounds like the starter engages for about a second and then stops. The motor doesn't budge or move or wink or dance, just stays stationary at the crank pulley.

If you jump the solenoid the starter will whirrrrrrr, but will not engage the flywheel.

He has already had the starter rebuilt, thought about taking it to autozone or somewhere to test it. Seems you could test it at the house also, just never done it. Pulled the starter off and made sure there was nothing jammed up inside the starter or against the flywheel. The bendix seems to be free and moves back and forth. The flywheel has some light wear on the outside edges of the teeth, but none are missing. Doesn't look like it has been trying to engage the flywheel. The bendix looks fine tooo.

We tried turning it over by hand, then by wrench, off of the crank pulley bolt. Unable to get it to budge, which is where neighbor thinks it is frozen. Should we be able to turn it and how hard should it be to turn it. I thought if we put it in high gear we might be able to push it and see if the motor would turn, we couldn't! Then we tried my small JD 4200 and we couldn't budge it either, so I'm thinking without a lot of effort it ain't moving anyway.

What is the shiny silver handle that goes from the operator station to the top of the valve cover?

 

[Bob Rooks]

If the engine locked up while slow idling it's most likely a hydraulic lock from coolant drawn in to the combustion chamber through a leaking/blown head gasket. What does the engine oil look like? What does the coolant look like, does there appear to be oil mixed with it?

Another possible scenario is that the hydraulic pump deadheaded.

That shiny little handle is probably your compression release.

I don't pretend to know much about the wheelies, but there are a lot of very knowledgeable members here that can help. Just thought I'd get the ball rolling.

 

[Rich Waugh]

That shiny silver handle is the compression release - turn it and it opens the exhaust valves to relieve compression. You should try that while cranking it - it sounds to me as though the engine is hydro-locked, that is, liquid (either fuel or oil) in one or more cylinders is preventing the piston form going over TDC. If the compression release doesn't work (some are not hooked up correctly) you can remove either the glow plugs or injectors to relieve compression. Then try turning it over and see what, if anything , comes out of the cylinder(s). Unless the engine was overheated it shouldn't be "siezed." Hydro-locking is a more common cause of the problem you describe, due to faulty injectors or other causes like Bob mentioned. Check the fluids as he suggested.

If you had managed to turn the engine over with a cylinder hydro-locked, you would have broken a piston or cylinder liner - that pre3ssure has to be relieved somewhere.

 

[Affordable]

Also look to see if there is a small gap between the back of the engine block and the flywheel housing , I have seen many times the bolts worked loose in the flywheel housing and caused the engine to act like it was locked up,I would bet that this is the problem, however to fix it you have to split the tractor and remove the flywheel. This FarmPro tractor 2425 is the same as the Jinma 200 series 254/284.We keep all the parts in stock for this tractor from a O-ring to a complete new engine


Tommy
Affordable Tractor Sales
"Your Jinma Parts Superstore"
Home of compact Jinma, Foton, and Koyker Tractors and Parts, Wood Chippers, Backhoes - Affordable Tractor Sales Company

 

[pollolittle]

thanks so far for the replies, keep'em coming!

Affordable - that comment above would be a good time for a picture.

The radiator flluid looked okay, no oily mixture. He said he had checked the oil and it just looked dark black, no milky chocolate flavor.

Thanks for the heads up on the shiny silver handle or the exhaust compression release, that ya'll refer to. I was turning the handle and trying to turn the motor at the crank pulley and still couldn't get the motor to turn. Didn't try that before I took the starter off.

I still don't understand why the key makes a different engagement when starting and the starter whirrs, when jumping the terminals.

Also, what about the push start or how hard to turn the motor by hand, or can you, without releasing the glow plug or injectors?

 

[pollolittle]

Affordable - it is also leaking like a flour sifter, says it started leaking oil when he pulled it in his garage. It has been leaking hydraulic fluid for a while. Do you have better parts for it or is it the same stuff from the factory, which will then fail soon again? I like to fix and forget!

 

[Affordable]

If it's leaking motor oil between the flywheel housing and block its prob. what I said it is.If the seal is bad it's because the housing came loose and damaged it.I think you jumped across the wrong small wire. If you try jumping across the other small wire it should kick the starter drive out

Tommy
Affordable Tractor Sales
"Your Jinma Parts Superstore"
Home of compact Jinma, Foton, and Koyker Tractors and Parts, Wood Chippers, Backhoes - Affordable Tractor Sales Company

 

[pollolittle]

Thanks again, didn't expect so much help so quick. Ahhh, it makes sense now for the starter. Jumping across the two larger terminals just turns the motor, possibly, if I got that right. Then, jumping across the smaller wire should kick out the bendix and engage the flywheel. I have to go test that piece of info now.

So, apparently, there is a flywheel housing attached to the back of the motor. The housing comes looose and does what? Is it binding against the flywheel and putting pressure on the seal area of the crank and then oil is leaking out? Is there a parts diagram I can see?

 

[Affordable]

Yes that's prob, whats going on.there is a Yangdong Y385 parts book that has a breakdown of that area with part numbers The flywheel housing is # 61, the oil Seal is # 66,

Tommy
Affordable Tractor Sales
"Your Jinma Parts Superstore"
Home of compact Jinma, Foton, and Koyker Tractors and Parts, Wood Chippers, Backhoes - Affordable Tractor Sales Company

 

[pollolittle]

Clicking on your link to your site. I don't see that model. Will go Google it! Thanks interesting so far.