Farm Pro 2420 starting issue

[parksfamilyranch]

So reading through these forums I was able to diagnose a fuel issue last week and replaced sediment bowl etc. Tractor started up just fine this morning and have been working it for a couple hours.

Well again the tractor died like it was choking for fuel so I went through and checked for bugs and cleaned out sediment bowl.

Now I try to start and sounds like the starter is just spinning. I'm attaching a video and I'm sorry I'm no mechanic but can I get guidance on what may be happening please.

 

[parksfamilyranch]

Well I was going to attach a video but cant figure out how lol.

 

[parksfamilyranch]

 

[TimP82]

I would start by pulling the starter from the tractor, clamping it in a vise and then bench testing it with a power source. While activating the starter, you will want to see the starter drive coming our of the solenoid and then spinning the starter gear. Of course the whole time be looking for stripped teeth on the starter and the flywheel. Best of luck!

 

[RonMar]

Yep, pull the starter... sounds like the starter gear is not sliding forward and engaging the ring gear. The solenoid pulls on a lever that slides the gear to engage the flywheel. If this lever has been disconnected or the pivot bolt has shifted the gear might not move far enough...

 

[parksfamilyranch]

Alright got the starter off finally, Chinese assemblers dont make it easy.

Looked at the flywheel and doesnt look to bad.

Bench tested starter and gear come on out but don't spin. Hit it with some PB to see if it was gunked up waited a few and tested again same result. I'll attach what photos I can and video ....

 

[parksfamilyranch]

Ok fixed my ignorance of not testing correctly. Retested starter the gear comes out and spins.

 

[parksfamilyranch]

Starter turns as it should I believe, I took a pry bar and fly wheel turns. None of the teeth look tore up.

 

[parksfamilyranch]

Well here we are working on a Sunday, so I tested the starter correctly and the gears popped out and spun.

After talking to some old farmers and a diesel mechanic that does a lot of tractor work for the farmers out here. He said the starter could have been gunked up and just needed a good blast of PB or the solenoid might not be working and spinning properly when the starter is under strain, like when it engages the flywheel.

Now I checked the teeth on the flywheel and they don’t look bad and I also turned the flywheel. There was good compression and I could feel it turning the pistons. So thankfully its probably not something worse but something wrong in the starter itself.

I am going to go ahead and order a new starter and see what that does, so I can get back to the fuel choking out issue.

I have uploaded some videos and pictures. Hopefully it will help someone else in the future.

 

[RonMar]

While you have it off, Take the end off of the starter(opposite the gear end) and clean the carbon out of the brushes and off of the commutator where the brushes transfer current to the rotor. Shorted/messed up brushes, and or a weak connection to the starter could also cause stuttering/chattering. Voltage is good, you turn key to start, solenoid tries to engage, short or bad connection causes voltage drop, solenoid disengages, voltge surges, solenoid re-engages, repeat...