11-21-2025, 07:05 PM
(11-21-2025, 06:24 PM)Superannuated Peregrinator Wrote: I attached two more photos. One from the side and one more from the front quarter looking down. It is difficult to get a much better shot because the tag tire and side wall of the coach get in the way and I did not have it blocked up for me to get under to get any better picture. The first picture in this thread is the underside of the unit.
That appears to be a Bendix AD-IS air dryer, what is leaking is the purge valve. Its held in with a big circlip. You should be able to pull the whole purge valve out, probably should just get a new purge valve kit and put it in. You can just try cleaning and lubing the o-rings.
When was the last time the air dryer was serviced?
I put red lines on the circlip that holds the purge valve in:
Jeff LoGiudice
Temple Terrace, Fl & Loudon & Monterey, TN
1984 Bluebird Wanderlodge PT40
1998 Newell 2000 #490
1986 MCI/TMC 102A3 (sold)