Chainsaw Repair

Yes,

I had to go do a chore but was thinking one could take a 555 transfer cover and make it deeper by cutting a grove in it and attaching a new cover piece over the original 555 transfer.

If there is too much zinc in the metal to weld, and you may not be able to weld it anyway for the new part would be a different aluminum alloy, the new cap would have to be JBweld attached? There is not a tremendous amount of heat there