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Upper engine mount rivet bucking

Mark Jackson

Active Member
Patron
I'm having a heck of a time bucking rivets that go through the forward skin, the upper longeron, and the upper engine mount bracket. Of the six I just installed, I will probably drill out and replace three for the second time.

I have all the standard bucking bars but cannot find one that fits past the shop heads of the rivets on the top of the bracket. I have used the corner of a square bar held diagonally with some success but am only having a 30% success rate.

Anyone have any suggestions?
 
I used the cherry max rivets in this area. It is the only option when rivet by a single person
 
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