Seized engine? Need some advice.

[BotaBigot]

You're doing all right things...sounds like a "once in a lifetime" problem. At this point hard to tell which most productive, head or split...I'd probably do head first...but...

 

[Sawdustsmb]

Probably a stupid idea - PTO turned off?

Bob

 

[Garybake]

At the risk of sounding stupid... When clutch is free will tractor move or rock. I have seen plenty of pilot bushings sieze transmision input shafts. I need to reread your posts but odd you can not reverse any to point of crank bolt breakaway.

 

[gengine]

At the risk of sounding stupid... When clutch is free will tractor move or rock. I have seen plenty of pilot bushings sieze transmision input shafts. I need to reread your posts but odd you can not reverse any to point of crank bolt breakaway.

You know that's not a bad idea. I had a ford power stroke in my shop not too long ago where the pilot bearing seized up. The starter still turned the motor, but if the truck was in gear, clutch in, the truck would jump. Do it with the parking brake on, and we had the same symptoms the op is having. Good call!

 

[Kernopelli]

Probably a stupid idea - PTO turned off?

Bob

PTO is in neutral and spins free. I have tried engaging the PTO and putting a LARGE pipe wrench on it and attempted to spin the engine that way....it was a no go.

At the risk of sounding stupid... When clutch is free will tractor move or rock. I have seen plenty of pilot bushings sieze transmision input shafts. I need to reread your posts but odd you can not reverse any to point of crank bolt breakaway.

Not stupid at all. When this occurred, the tractor was on the trailer, at that time I tried and the tractor rolled freely in neutral, locked up when put in gear then could be rolled either direction when clutch was pushed in. After getting off the trailer, I tried the same things and clutch engagement/disengagement while towing the tractor. Tractor has +/-200hrs on new clutch TO and pilot bearings. Even if the pilot was seized, the engine would still spin with trans in neutral.....right(?) or am I thinking wrong about this?

 

[boomer1025]

Pull the front cover off the engine and check the gears or timing chain

 

[kebo]

Found the problem yet??? Interesting dilemma!

 

[whitetiger]

Is your hyd pump mounted on the engine? Remove the pump mounting bolts and pull it back far enough to disengage the spline. Now try to turn the engine over by hand.

 

[irvingj]

Ditto on a check of the timing chain & gears...

 

[ihuntbear]

did you try pulling backwards with the truck and letting the clutch out.might free something up