Thanks Harley, I couldn’t figure out why I sometimes had an issue. Having parts that mix and match with the 1125 series from the 1128 series (but not always) has made it even more difficult at times. I usually tighten the clutch and check that the worm gear tang moves freely without any effort using a pic without the drum installed. When the setup is wrong, the tang won’t move easily and you will see it moving with crank rotation. I’m sure the rubbing between the 2 is creating the heat that is melting the gear.