I would advise against using teflon tape as it can shed small bits which might cause problems further along in the system. Permatex sells a product called "lock and seal" which is intended for fuel and oil and serves as both loctite and sealent. Maybe a bit of that if you have a bad female thread on the manifold. Also, we have a very small species of mud dauber wasp that will build a nest up in the outlet, restricting outflow. I replaced my curtis drain before I realized what had happened. I now have a plug as part of my tiedown kit. Replacing valve is easy. Drain fuel. Install new ( pipe thread, bronze to bronze, so don't overtorque ). Check for leaks. Cheers, Slacko Pe
On Fri, Dec 4, 2020, 22:04 Rob Thompson <[email protected]> wrote: > If you can't get the O-rings as Cath suggested and you have to buy a new > one..... > > I can't recall if they are a metric thread or NPT ( > https://www.aircraftspruce.com/menus/ap/fuel_drainvalves.html) I think > the latter. > > Take it to a Hydraulic shop and ask them to identify the thread for you. > > Use teflon tape or very carefully with thread sealant when you re-assemble > > regards > Rob > > Rob Thompson > 0429 493 828 > > > > On Sat, Dec 5, 2020 at 1:51 PM Kurt Redinbaugh <[email protected]> > wrote: > >> The fuel drain on the underside of #3660 is weeping. Does anyone have >> experience with replacing the drain valve as regards either manufacturers >> part number or the specification of thread size for a replacement? Are >> there any surprises when I go to remove the existing valve and install the >> new one? >> Many thanks >> Kurt >> >
