Hi

I am troubleshooting some problems with my 85 Westy FI system.  Thanks to
List members who helped me find a idle enrichment switch recently.  I have
that part installed now.

Today I tested the auxiliary air regulator as outlined in Bentley.  After
the engine warms up the regulator should close and pinching the hose should
not make a difference.  The thing does not close.  After taking the
regulator out of the vehicle I have measured a supply voltage across the
pins of the electric plug of 5 volts (no voltage value shown in Bentley).
The regulator has a resistance of 30 ohms.  The sliding door (gate,
whatever) inside the regulator moves freely when I use a coathanger wire to
check it.  I have tried another regulator from a 84 engine (Thanks Sadir)
and it does not close either.  Lots of WD 40 didn't help.

I adjusted the regulator to be only slightly open and the engine idle is
slower but it still is not working correctly.

Am I missing something?  Are the voltage and resistance values correct?

Has anyone ever disassembled one of these?  I think I can get it apart, but
getting it back together might be a little harder.  What are the failure
modes?  Any advice is appreciated.

Thanks,

Ron in Seymour TN with 84 and 85 Westys and 78 bus - Buster VanWaggon