Robert M
Well Known Member
Hi guys!
I am in the process of accumulating all the hardware necessary to put my engine back together again, specifically the crankcase. In the Lycoming Parts Catalog PC-103, in figure 1-5, Standard Crankcase, Crankcase Attaching Parts, Reference # 6, STD-1416. I can't seem to find that particular bolt at any of my favorite shopping locations based on the number given.
Since these bolts are covered by the oil sump and inaccessible from the outside, I'm guessing they are drilled shank bolts (doesn't say in catalog).
These STD-1416 bolts are 1/4" x 20 x 1 1/2". I believe a replacement for these would be AN4-14. Although the AN4-14 are 1/4" x 24 X 1 1/2", I believe they will work but would require a 24 thread castle nut.
Anybody know if the AN4-14 would be a correct replacement?
Thanks.
I am in the process of accumulating all the hardware necessary to put my engine back together again, specifically the crankcase. In the Lycoming Parts Catalog PC-103, in figure 1-5, Standard Crankcase, Crankcase Attaching Parts, Reference # 6, STD-1416. I can't seem to find that particular bolt at any of my favorite shopping locations based on the number given.
Since these bolts are covered by the oil sump and inaccessible from the outside, I'm guessing they are drilled shank bolts (doesn't say in catalog).
These STD-1416 bolts are 1/4" x 20 x 1 1/2". I believe a replacement for these would be AN4-14. Although the AN4-14 are 1/4" x 24 X 1 1/2", I believe they will work but would require a 24 thread castle nut.
Anybody know if the AN4-14 would be a correct replacement?
Thanks.