Lycoming O-540 260 HP engine (22 of 154)


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My barry engine mounts are made for AN7 bolts, however the dynafocal mount for my engine is drilled for AN8 bolts. So, I had to modify the mounts a bit by drilling the bushings and center mount holes to 1/2 inch instead of 7/16 inch. Not a huge difference and thanks to the use of a step bit the job was fairly easy to do.
My barry engine mounts are made for AN7 bolts, however the dynafocal mount for my engine is drilled for AN8 bolts. So, I had to modify the mounts a bit by drilling the bushings and center mount holes to 1/2 inch instead of 7/16 inch. Not a huge difference and thanks to the use of a step bit the job was fairly easy to do.


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