Spark plug tube change without draining oil

[Pdwight]

Got one side done and I had a really hard time getting the new tube in on the drivers side..the most forward one. I used a 1/2 inch ratchet handle with a large socket that just fit inside the tube (Around 1 1/14). I couldn't get the tube to snap in place with my fingers, the socket fit perfectly inside the tube and the handle allowed me to hold it perfectly in place with one hand. I used the other hand on the head of the ratchet and it gave me a lot of leverage and surface area to push on...the tube snapped into place perfectly.