All,

Finally got around to finding the leak in our '87 Westy.  It appears that the safety plug that sits atop the receiver/dryer, in the driver's side rear wheelwell, has blown it's plug.  It's basically a threaded plug with a hex bolt head on the top.  The center has a hole where, I'm surmising, a small hard rubber plug once resided.  It almost looks like an LP orifice with an oversized hole.  Bentley refers to this little dandy on page 87.7.Does anyone sell  these valves/plugs.  Ron @ Busdepot, Ken @ Vanagain?  Or will any A/C shop have something that will work?  I'd like to get this replaced so I can diagnose the rest of our A/C system.

TIA!!!
Rod Woten
'87 Westy
Des Moines, Iowa