Ruler of Wind and Wave
Join Date: Sep 2007
Thanked 0 Times in 0 Posts
Rep Power: 0
Seal up diesel tank inspection port
To inspect the inside of the diesel tank, I removed the twenty self tapping screws which hold the aluminum plate and rubber gasket. For some reason the builder mixed the screws, three being of very slightly larger diameter but the pitch is the same. Once I realized this, I tried to put those three back in the same tapped holes but missed one. Therefore, I effectively retapped the thread of one of the holes slightly larger. After sorting this out, I was unable to torque up the smaller screw in the larger tapped hole. (Is this wordy enough??) The plate is effectively clamped due to a screw every inch along the perimeter; however, my concern is that when I top off the tank I'll have fuel weep back through the sloppy thread.
I haven't found another slighly larger screw yet. What would you think about a dab of silicon sealer on the threads or maybe JB Weld. The base metal (threaded) is 3/16" thick.
Anyone had success sealing like this?
"I don't know where I am but I know I'm not lost"