Glad I learned of probable difficulties with Enfield f/pin removal AFTER I was finished!!
I just completed strip cleaning and reassembly of two No4-Mk1's [my first Enfields] acquired recently from "BIG5" - as I've learned from experience with other bolt-action milsurps I soaked both bolts in "CLP- Breakfree" for a couple days while working/cleaning on other parts of the rifles. Both bolts came apart/reassembled easily using a tool included with an Enfield "accessory kit" from SARCO. I think the preliminary "soaking" was probably the key to success here.??