Chainsaw Repair

I tried to figure out from the IPL of an 029 .If the thing is a stud with the nut on the outside they all jamb up .The danged nut is out there where it gets screwed up being in the air .FWIW the old Macs did the same thing if they were on a stud .

On the Stihls with removable covers and the screws inside they never jamb up .

It's about the same as an exhaust manifold on a car engine .The ones with studs and nuts you have a deal of time removing them ,Usually a bolt thread into the head comes out easier .

About the only cure I can think of is brass nuts if you can find them in metric .FWIW the old Caterpillars used brass nuts on the manifolds .