Tree-Farmer
Member
I would like to ask if anyone knows if the engine would need to be removed for this?
It?s a John Deere 4400, diesel engine, with possibly two problems:
One problem is in the drive train. When you take off the seat, in the hole under the seat is the shaft connecting the shaft to the rest of the engine. There are 4 bolts holding the engine shaft to the connecting shaft, connecting the engine shaft to the rest of the combine, to power it.
I'm not sure if that's called the Drive Plate Adapter. 2 bolts came out, and the other 2 broke off. I was able to replace the 2 that came out, but I don't know if you would have to remove the engine to drill out the other two bolts.
The other problem is that possibly the flywheel is loose. I think the flywheel is not making connection with the starter.
The starter spins, but it doesn?t turn the motor over. I though the starter was bad. So I took out the starter.
What a freaking pain that is. It's in the back of the motor. You have to lay on the motor, and stand on your head. You have to get a special tool from John Deere, to remove the starter. But I got it out. Had it rebuilt, put it back in, (Awarded myself a Master Mechanic status for that) Same problem.
I can turn the motor by hand, so the flywheel is in a different place. (in case there was bad teeth on one spot) Then I try to start it again. Sometimes the starter will turn the motor some. But usually it won?t. The starter spins, but doesn?t engage the diesel motor.
I think maybe the bolts need to be tightened to tighten the flywheel to the motor,
And probably drill out the bolts on the other part, a small wheel on the end of the shaft,
The mechanic that has done other work on this combine, fixed the brakes and other things, said he thought you would have to remove the engine, to get to the flywheel and the shaft.
I?ve been talking with another guy who says you can get access to these parts though/by under the seat, that you would NOT have to remove the engine. Here's what he said, below.
Has anyone done this? Do you know if you can access the flywheel and bolts that connect the engine shaft, by going through, beneath the seat? (Or coming up from below) It seems expensive and a lot of work, to have to remove the engine to do this.
Thank you
----- Response from another mechanic --------
Sounds like you have a couple of different, but related problems. First, to give you some reassurance, it should not require removal of the engine from the machine to resolve them.
First priority is to remove the drive shaft , belts, pulleys, and hydraulic pump and bell housing from under the seat. First look this might seem impossible, but is recommended way to access The drive plate adapter, pilot bearing and flywheel from the engine.
after this is done, then the process of diagnosis of exactly where your starter engagement problem lies, and also accesses the positions of broken bolts and removing them.
It?s a John Deere 4400, diesel engine, with possibly two problems:
One problem is in the drive train. When you take off the seat, in the hole under the seat is the shaft connecting the shaft to the rest of the engine. There are 4 bolts holding the engine shaft to the connecting shaft, connecting the engine shaft to the rest of the combine, to power it.
I'm not sure if that's called the Drive Plate Adapter. 2 bolts came out, and the other 2 broke off. I was able to replace the 2 that came out, but I don't know if you would have to remove the engine to drill out the other two bolts.
The other problem is that possibly the flywheel is loose. I think the flywheel is not making connection with the starter.
The starter spins, but it doesn?t turn the motor over. I though the starter was bad. So I took out the starter.
What a freaking pain that is. It's in the back of the motor. You have to lay on the motor, and stand on your head. You have to get a special tool from John Deere, to remove the starter. But I got it out. Had it rebuilt, put it back in, (Awarded myself a Master Mechanic status for that) Same problem.
I can turn the motor by hand, so the flywheel is in a different place. (in case there was bad teeth on one spot) Then I try to start it again. Sometimes the starter will turn the motor some. But usually it won?t. The starter spins, but doesn?t engage the diesel motor.
I think maybe the bolts need to be tightened to tighten the flywheel to the motor,
And probably drill out the bolts on the other part, a small wheel on the end of the shaft,
The mechanic that has done other work on this combine, fixed the brakes and other things, said he thought you would have to remove the engine, to get to the flywheel and the shaft.
I?ve been talking with another guy who says you can get access to these parts though/by under the seat, that you would NOT have to remove the engine. Here's what he said, below.
Has anyone done this? Do you know if you can access the flywheel and bolts that connect the engine shaft, by going through, beneath the seat? (Or coming up from below) It seems expensive and a lot of work, to have to remove the engine to do this.
Thank you
----- Response from another mechanic --------
Sounds like you have a couple of different, but related problems. First, to give you some reassurance, it should not require removal of the engine from the machine to resolve them.
First priority is to remove the drive shaft , belts, pulleys, and hydraulic pump and bell housing from under the seat. First look this might seem impossible, but is recommended way to access The drive plate adapter, pilot bearing and flywheel from the engine.
after this is done, then the process of diagnosis of exactly where your starter engagement problem lies, and also accesses the positions of broken bolts and removing them.
