Originally Posted by andrew phillips
I am ready to close the to skin over the panel area. Along the longeron and especially under the roll bar mount I have lots of wires. I have to rivet the top skin through the side skin and longeron. It is impossible to get a bucking bar in some of these locations...... Any suggestions?
I just did that a few days ago on the -8 project. Like my 6A, those holes I deemed impossible or impractical to access with a bucking bar, I reamed to #30 and slightly machine countersunk the dimples and inserted CR3212-4 Cherry
rivets. It is VERY important to use a grip gage
to determine the correct length Cherry rivet
. A single Cherry rivet
is pricey and range from $0.45 to $1.23 each for -3 through -8. The photo shows the use of a combination of solid rivets and Cherry
rivets. Since the CR3212 stem breaks off flush with the surface, its profile blends in well enough with solid rivets and after prep and paint becomes virtually indistinguishable from the rest.