I was fortunate that this SB was issued just as I was finishing my wings...
Recently I received the '12 Wing Doubler Install Kit' from Vans, which contains some 5/32 rivets (BSPQ-5-4). They don't seem to 'pull' exactly the same as, for example, the smaller LP4-3 rivets. On these larger rivets, the mandrel is breaking off right at the top of the factory head. (The smaller ones of course leave a little 'hole' at the top).
Thanks Scott, yes I used a #22 drill for the holes. The first one I pulled was with the pneumatic puller, at the usual 90psi. After seeing what it did, I used the manual puller, which I think maybe fractured the stem slightly lower but not by much.
Do you think I'll need to re-do these..?
Bob - I found 40 psi was much better for pulling LP4-3's than 90 psi. Much less bounce, good control. Puller was from the Cleaveland kit.
What are people using for the thin strip of steel?
All eight of mine broke proud of the rivet head also.