My taurus PT1911 seems to have suddenly developed light primer strikes. It ahs not been shot for a couple months and last range trip ihad a high % of failures on Remington FMJ, very light dimpling, and a few on Federal with most normal but some light dimples. Never had this issue before with the gun. everything on the gun is stock. I have torn down the upper and the firing pin and spring are clean. The "pencil test " seems normal . Next I was going to examine the main spring. can I drive out the pin and remove the main spring housing without touching the hammer and sear and such?