Now comes the time to set all the Bull aside, and have a serious discussion about a serious problem. I've had a problem with my right wing tank. Someone years ago put a rivet on patch on the end that buts against the fusilage. Used "pop" rivets. Must have leaked, cause he tried to seal it. Looks like he used "Cream" type sealant. The problem is, he didn't clean the tank. The tank was lined with a black tar type substance. The black stuff must have been a pretty good sealant, cause I'm having a dikens of a time getting it out. The Cream has come out fairly well. Been using MEK, and Acetone. MEK works best. At first, the Cream came out in great big gobs. Now, with each additional flushing, I get a little less, but still some of it in very small pieces and flakes. At this rate, it'll take the next 3 years before I feel comfortable enough to use the tank. The plan is to get all of the sealer out, weld on a patch on the end that won't leak, and then pressure test and hope that I don't need to seal inside again. Certified shop doing the welding. Now, how in hell, oops, heck can I get the rest of the Cream out. The Cream comes out in flakes, and doesn't ever disolve. Softens up, but stays intact. The black stuff disolves and colors the solvent, but no chunks. I believe that the black can stay, cause if the MEK don't cut it, Avgas won't. But the flakes and chunks of Cream are a problem. Any Ideas how to get it out without cutting the tank apart? Remember, the very small flakes of Cream have made it past the screens and clogged up the carb, so I gotta get it out.
<<attachment: winmail.dat>>
