Lycoming engine mount ear hardware

[CharlieWaffles]

I just hoisted my news YIO-540 vans engine. The engine mount ears were included in a box (70456) and I see the bolt studs for them in the engine case, but I'm not finding any washers or nuts. Neither the Lycoming engine book nor the vans FWF have any info on these. Any ideas? The only other box was the fuel injector and its hardware, but nothing I could readily see for these unless its all mixed together.

 

[CharlieWaffles]

Never mind, it appears all the hardware is in the injector box.

 

[N49ex]

This might be a topic already beaten to death in other threads, but here goes just in case - Just mounted the Thunderbolt I/O-540 on my friend's RV-10, including first attaching the mount ears which Lycoming had kindly included in a cardboard box rather than shipping the engine with them on. Seems they are masochists who enjoy knowing the agony of torquing those lower back nuts!

If you can get a socket to fit at all, it's pretty much impossible to drive it with a torque wrench. A crow's foot can't fit with any kind of significant rotational angle. So we broke out the torch and bent a 9/16th" box end wrench to fit and angle past the ear, pictures attached. 90 degree bends at both ends of the wrench which can then be driven with the torque wrench via a bolt with a couple of nuts on it.