They are the correct grub screws supplied with the engine side clutch half.
Separating the clutch halves might be a good idea (inspect the internals at the same time) and some Penetrene down the keyway....if there is surface rust on the engine shaft, it may prove troublesome to get off.
Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member. Kindest Regards, Darryl
