Guest Posted October 31, 2018 Report Share Posted October 31, 2018 We pulled this leaking fuel drain valve out, to find that it had been grossly over torqued. Note how the holes are stretched diagonally, something to keep an eye out for. Clarence Quote Link to comment Share on other sites More sharing options...
amillet Posted November 1, 2018 Report Share Posted November 1, 2018 I would think the threads would strip first? Quote Link to comment Share on other sites More sharing options...
carusoam Posted November 1, 2018 Report Share Posted November 1, 2018 Fuel drains are easy to rip their little heads clean off... Specially when the only tool you have that fits the drain is attached to a 1/2” breaker bar... it is a mismatch of size for the torque that is required... My mechanic gave me pretty clear instructions to follow... Should of have gave me a torque spec... Its probably a few inch pounds... there is probably a rubber seal that only needs to be compressed, not crushed... My plan was to put it in by hand, firm it up with the tool, torque it tight by rotating it one facet of the hex bolt... To my surprise, It snapped off in the firming up phase. I went from happy to have a solution to my leaking drain, proud that my mechanic just gave me what I needed... To holy crap, now the leak just got much worse... there is nothing that could possibly make the drain vibrate out without noticing it months in advance... don’t over torque it... The M20C days before MS... Funny PP experiences collected over time... not a mechanic... Thanks for the memories, Clarence... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
N201MKTurbo Posted November 1, 2018 Report Share Posted November 1, 2018 They have an o-ring seal and the o-ring will keep it from coming loose. You only need to tighten it till it stops leaking. 1 Quote Link to comment Share on other sites More sharing options...
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