Pipe thread lubrication

31 May 2004 Pipe thread lubrication

–> RV-List message posted by: “Dan Checkoway”

Austin,

I had a similar situation, a leaky brass fitting on my brake cylinder.

In my limited experience, I found that using Loctite 565 (white teflon pipe
thread sealant paste) works great on pipe threads in the brake system, and I
also use it on nylon pipe threads in the pitot/static system (as recommended
by a pro when I had my IFR pitot/static check done).

http://www.loctite.com/int_henkel/loctite_us/?layout=6&productline=565

On pipe threads in the fuel system, I always use EZ-Turn (fuelube).
http://www.aircraftspruce.com/nsearch.php?s=ez+turn

On pipe threads in the oil system, I use Permatex Form-a-Gasket #2
(http://www.aircraftspruce.com/catalog/eppages/permatexprod.php) in some
spots, teflon tape in others (i.e. oil cooler fittings, as recommended by
Pacific Oil Coolers).

When I was building my -7 I was dumbfounded at the lack of a definitive
reference on how to lube pipe threads properly. I read too many conflicting
recommendations. Anyway, the info above is what I’ve settled on over time,
gospel to me now.

Hope this helps,
)_( Dan
RV-7 N714D
http://www.rvproject.com