Spline repair

[bricol]

I wouldn't be using grinding paste - why reduce the rest of the spline(s) in either or both the shaft and the component it is fitting into?

 

[daedalusminos]

Have you got a suitable straight knurling tool of exactly the right size?

 

[Puglet1]

Have you got a suitable straight knurling tool of exactly the right size?

No I don’t.

 

[Kram]

This is an easy quick job for files and a cold chisel.
The only thing I'd consider gentle use of a grinder and flap disc is after sorting the sides of the splines, if there remains high spots that need to be leveled.

 

[mr haynes]

Bit of rod dabbing, slitting disc and angry grinder round....
Well that is how the roadside Pakistani mechanics would do it.
Obviously you would have to wear your ppe safety sandals
My toes scrunch up everytime i watch!
They really do scare me, but impress with their can do attitude

It is a welding forum afterall

Alternatively bit of filing, maybe hacksaw blade etc

 

[8ob]

That is a job for a thread file of the correct pitch, ask me how I know
For Bodgers

Bob