How does one know if it's the pump, do they just go or slowly loose
vacuum.

When converting to the Subie cruise you don't the the parts on the
2.1 wbx engine. You just hook the the subie vacuum controller right
up to the pump. So I don't think it's the vacuum bellows.

JFF

On Dec 4, 2007, at 3:36 PM, John Graham wrote:

Merv, I have an 88 Westy with auto transmission (original engine).  I
had a
similar problem and found that the problem was the vacuum bellows
unit that
pulls on the throttle on top of the engine.  It's a cone shaped
rubber unit
that had developed a leak and therefore the cruise control wouldn't work
anymore.  It was simple to see and verify; I repaired temporarily
with some
silicone sealer until I could get a replacement unit.  It wasn't
expensive
and was easy to replace on the wbx configuration.  I don't know how the
Subie engine configures its cruise control actuator, but if you're still
using the original rubber device, I'd be sure to check there.

Good Luck,

John Graham
88 Westy - Hathaway
Charlotte, NC
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