Mike Coady
Well Known Member
Ok builders, need some info on this one. When I run my boost pump, I'm getting a fuel odor. But, I've uncovered everything to check for Leaks and there are not. Is it normal to smell, is pump venting some how?
Ok builders, need some info on this one. When I run my boost pump, I'm getting a fuel odor. But, I've uncovered everything to check for Leaks and there are not. Is it normal to smell, is pump venting some how?
Fuel smell = fuel leak... keep looking until you find the source.
Airplane should be grounded until you do.
The fuel evaporates but the blue dye does not. Rub your fingers around each of the connections - any residual dye will stain your fingers at a leakage point. The leak may be obscured from view even with inspection mirrors.
Second this. Also, if you don't find a loose fitting, you really should take them all apart and look for cracked or damaged tubing flares. If you don't find one. Start inspecting backward toward the tanks.+1. Take a clean white tissue and wipe down each fitting and you will find the leak. Be careful of over torquing the fittings, you can easily damage the flare.
The blue dye, assuming you're using 100LL, does just this. Fuel evaporates, dye remains.Just a note that takes an absolutely microscopic amount of fuel to stink. It might all be evaporating so you can't see it. Not sure if there is a way to make a stain visible or not....