If you prepare an OIF T140V correctly no sand will enter the frame. The only vulnerable areas are the neck, swing arm and OIF tube. Neck, two metal plates or very large fender washers, treaded rod, nuts and intertube for gasket. Swingarm pivots, same as neck. OIF tube, that's why I suggested purchasing a new bottom plate, studs, nuts washers, gasket and filler cap. The originals are to be kept on and destroyed. I used a golf tee for the oil return tube. These will be left on during powder coat, as well as various wood douls and masting tape for mounting holes. You do not want to get powder coat in various mounting holes, it's hard to get out.
