Quickdrain torque

[mansboat]

Hi All,

I need to replace one of the wing quickdrains on my RV9A. How much torque should I install the new one with?

Also, does anyone know where I can get some of the rubber O-rings used in the valve?

Thanks!

[sprucemoose]

Quick drains are pipe thread (1/8" IIRC) and torque specs really don't apply. As my daddy taught me, it's basically a "tighten until it breaks, back off a quarter turn" operation. Apply a little Fuel lube/ EZ turn, tighten until it's good and tight and doesn't leak. If I had to give a rough guess, I'd say somewhere in the 75-100 in/lb range, but don't quote me on that.

[Baseball Dad]

There's not much pressure on that so it doesn't need much. Use some thread seal compound and just snug it up. It won't leak.

[mansboat]

My intuition was that 15 ft/lbs was too much. Good to get confirmation. Sounds like 1/2 that may be about right.

O-Ring question still open, but its for the next time. I've got the new valves for this repair.

[dan]

http://www.aircraftspruce.com/catalo...ges/safair.php

The O-ring is a whopping 18 cents.