Bobtach side to side play

[KarlB]

I guess the previous owner never had a grease gun. I have some side to side play on the bobtach between the lower arms. If I spin around, the bucket slides left or right. I know the pins taper into the arms, but does anything hold the pins into the bobtach bushings? Or are my arms just spread out a bit at the bottom? ...karl, thinking he should have put a straightedge on his lift arms

 

[Tazza]

A bit of play is normal. If you make up some nylon shims, you can put them between the bobtach and arms to remove this play. I did this to my 743, works great.

 

[mahans7]

A bit of play is normal. If you make up some nylon shims, you can put them between the bobtach and arms to remove this play. I did this to my 743, works great.

In what thickness/size do you keep your nylon shim stock on hand. Where do you buy nylon shim stock? Couldn't find it on Amazon or Ebay.

 

[Tazza]

In what thickness/size do you keep your nylon shim stock on hand. Where do you buy nylon shim stock? Couldn't find it on Amazon or Ebay.

I have a lathe, so i make my own. You can buy it in one foot lengths, drill a hole in the middle so the pin will slide through it. Measure the play on either side, add together then divide by two. This way you get equal spacing on either side. Part the nylon at that width less a little for clearance. Take the pins out and install the shims and re-locate the pins. It's that easy, less so if you don't own a lathe though.
I have about 400 hours on my rebuild of my 743, there is still no play in any pivot point or side to side play in the bobtach.

 

[mahans7]

I have a lathe, so i make my own. You can buy it in one foot lengths, drill a hole in the middle so the pin will slide through it. Measure the play on either side, add together then divide by two. This way you get equal spacing on either side. Part the nylon at that width less a little for clearance. Take the pins out and install the shims and re-locate the pins. It's that easy, less so if you don't own a lathe though.
I have about 400 hours on my rebuild of my 743, there is still no play in any pivot point or side to side play in the bobtach.

What? Through the years I've rebuilt a few car/motorcycle engines and constantly work on my small engines but I had never heard of lathing nylon washers. Do you use a metal lathe or will a wood lathe work? Wow, in one day I'm learning to look at HTML code and then making my own nylon washers and all from the Skidsteer site. What next!

 

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What? Through the years I've rebuilt a few car/motorcycle engines and constantly work on my small engines but I had never heard of lathing nylon washers. Do you use a metal lathe or will a wood lathe work? Wow, in one day I'm learning to look at HTML code and then making my own nylon washers and all from the Skidsteer site. What next!

i dont think there is a difference between a wood lathe and a metal lathe, just how the material fastens to the lathe itself

 

[Tazza]

What? Through the years I've rebuilt a few car/motorcycle engines and constantly work on my small engines but I had never heard of lathing nylon washers. Do you use a metal lathe or will a wood lathe work? Wow, in one day I'm learning to look at HTML code and then making my own nylon washers and all from the Skidsteer site. What next!

It's a metal lathe. I have used it to make so many things, it's a tool i could never live without now.
It is pretty easy to machine, but being plastic, as it heats up from friction it does melt a little and can stick, but you get used to what it can and can't do.