Thread: Dacor burner valve not triggering microswitch

Model Number: RSD30R/LP

Brand: -major brand-

Age: More than 10 years

After removing range top and compartment top, I found that the small black plastic cogged collar on the metal valve knob stem was slipping easily as I turned on the gas and thus not triggering the microswitch (which works fine otherwise). It also appears that the very small metal c-clip that usually grabs the grove in the metal stem and holds the collar inward is missing.

Is there a clever way of fixing this without replacing the expensive burner valve assembly?? Or, if I bought a new burner valve assembly, could I transfer the c-clip or the c-clip/collar from the new to the old without changing out the whole control valve assembly??