Please see the pic below and let me know what part(s) are needed to keep the rocker shafts from slipping as they have in the pic. I had my cylinders overhauled by Gibson Aviation and they did a very nice job. There were no parts in the boxes they sent back that would appear to hold those rocker shafts in their correct positions. This is a Lycoming IO360-A1A 200 horse narrow deck engine that came out of a Mooney. Thank you!
