Using silicone glue to repair hardened idler tires?

[Olorin67]

Many newer idlers (4'speed changers) may be too narrow to cut a groove for an O ring, but its a great idea. Probably not so useful for the changers that have a 2 step idler like the 1950 s Vm decks , the speed would be off unless you get both of them just the right size.