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@BrickMan
Seized swing arm bolt, or rather bolt now spinning easy thanks to a high powered facom impact wrench and some kroil. It moves in and out of the frame around 3 to 4mm then stuck fast.
Bike is..
Steel bolt with steel bush's slid over, then needle bearings with fibre seal washers either side, 4 sets of them. Through frame and through gearbox casing.
So imagine the inner bearing surface vs the Bush is free, but the Bush needs to be free from the bolt and that's the tiny bit of movement I have.
Been soaking with rags around it as best possible with Kroil (acetone and atf pretty much).
Suggestions? Swingarm and bolt seem to be OK, it's just the corrosion forming a strong bond. Tried much hammer action with everything upto a sledgehammer and a variety of air hammers.
Suspect I've now flared the bolt shaft diameter out on one side so it'll never come back out again. Thought of maybe drilling and tapping an m12 hole in one end (have a large slide hammer that's m12 end) and see if pulling it out is better than hitting it out.
Last chnace is to cut up the perfectly functioning swung arm into pieces so I can get an angle grinder or death wheel into the area to chop the bolt. Or am I missing an obvious solution no