C cbennet1 Well Known Member Aug 30, 2010 #1 Vacuum cover bolt size???? - Disregard Looks like Lycoming just expects that you will leave the studs in and use spacers and nuts. Last edited: Aug 30, 2010
Vacuum cover bolt size???? - Disregard Looks like Lycoming just expects that you will leave the studs in and use spacers and nuts.