Kahuna
Moderatoring
I have had this very annoying problem of getting air bubbles under the paint on tank rivets. Here is what I know
1. Air bubbles under paint on rivets
2. Size is about the size of eraser heads
3. About 15 rivets on each tank
4. Both Tanks
5. Only on the top side
6. Only on the tanks
7. No fuel in the bubble
8. Bubbles are permanent and will cause me to repaint the tanks.
9. I get more bubbles the more I fly. The first 10 hours I had none. After 100hours I had ~7 per side. 200hours I have ~15 per side.
Here is what I think and you guys tell me if Im whacked.
I have the tank vents venting under the fuse with the #4 line pointing fwd. Like in the picture below. Is it possible that at 200kts I am seriously pressurizing the tank to the point that it is blowing past the proseal and giving me air bubbles?
Does someone know the math on what pressure might be in the tank at say sea level 200kts on a #4 line pointed into the wind?
What do you think?
1. Air bubbles under paint on rivets
2. Size is about the size of eraser heads
3. About 15 rivets on each tank
4. Both Tanks
5. Only on the top side
6. Only on the tanks
7. No fuel in the bubble
8. Bubbles are permanent and will cause me to repaint the tanks.
9. I get more bubbles the more I fly. The first 10 hours I had none. After 100hours I had ~7 per side. 200hours I have ~15 per side.
Here is what I think and you guys tell me if Im whacked.
I have the tank vents venting under the fuse with the #4 line pointing fwd. Like in the picture below. Is it possible that at 200kts I am seriously pressurizing the tank to the point that it is blowing past the proseal and giving me air bubbles?
Does someone know the math on what pressure might be in the tank at say sea level 200kts on a #4 line pointed into the wind?
What do you think?