I have an '86 Westy with A/C.  When I compressor engages the idle speed
increases.  I understand that this is as it should be.  However, it now
seems to be increasing to an excessive level.  In the past it went up about
200 rpm's - from about 900 to 1,100.  Now it is going up about 1,000 rpm's -
from about 900 to 1,900.  Is this normal?  If not is there any way to
adjust?

Thanks

Deke