Crank sludge trap

As is normal when everything is stripped right down it makes sense to clean out the sludge trap. Although the the threaded plug came undone relatively easily - not always the case - it was tight when removing and after cleaning out the crank the new plug didn't want to screw in as after a few turns it would lock up. My basic thread cleaning tool didn't help much so I had to wait a couple of days for a M22 x 1.25mm tap to arrive and all is back to normal