Air Height valves

[PM7088@...]

-------------- Original message --------------
From: "Gregory OConnor"

The airline fittings were tight, something made it grow loose. (look
for the cause) If it is simply vibration from the rough roads the
one loose fitting will not be unique to your bus.

Some hoses that have swival ends twist a bit radialy when cinched
tight. The hose always trys to relax and untwist in the direction
of loosing up the fitting.

I have also seen teflon tape used on threaded fittings that were not
pipe thread. Pipe thread male ends have deeper vallys at the tip.
when you connect a pipe thread, the tapered male jams into the even
opening of the female. (one of the reason plastic female pipe thread
splits) Teflon is needed on pipe thread only. On washer mounted
unions (hose bib) and the taper angle unions (jic) Teflon tape is
not used. It may even act as a lubricant to loosen up the hose or
get in the way of a good seat.

Wrong, both male and female pipe threads are tapered.

Pete, making threads of all types for 40 years.

.