1700D with clicking/clanking noise in 4WD

[RonJ]

I have a Yanmar 1700D that while driving in 4WD there's a clicking/clanking noise in the area of the front axle. Pushing the FEL into a large pile of dirt and trying to move forward results in a much louder noise. Shifting out of 4WD and there's no noise. Any ideas on where to start troubleshooting? Any help is greatly appreciated.

 

[winston1]

One idea woud be to jack up one front wheel with 4 wheel drive disengaged, turn that wheel listening for noise and also checking for looseness in the knuckle. Nothing shows then try the other side.

 

[clemsonfor]

What winston said. But sounds like a bad bearing or a tooth on a gear is missing or its clunking in and out of connection on one side??

 

[RonJ]

Thanks for the comments. Soon as the water goes down a bit I'll do some troubleshooting.

 

[284 International]

Another possibility is that the front driveshaft is missing some of the balls in the CV joint, or that one of the CV joints is heavily worn to a point where it can pop out and "skip", if that fits your symptoms.

 

[Egon]

U- joint?

 

[clemsonfor]

there are no u Joints on this tractor. The closest thing is those CV joints that have ball bearings in them.