Originally Posted by Stockmanreef
Another random question: I am about to mount engine and the plans say that a washer may or may not be needed under the castle nut. So it is OK to have NO washer under the castle nut on the engine mount bolt?
I would say no. I think you need at least one washer under the nut since its going on the aluminum engine casing. I think what they mean is that you can add extra washers here if you need to in order to make the castle nut hole line up. Remember, the upper and lower bolts are not the same length on the dynofocal Lycoming engine mount.