Try patching that hole with a product available at Home depot called
"Amazing goop." let it cure overnight then see if it works. William

> Well thanks to all who replied to my original msg with hints and tips.
Joel
> sent me a note pointing me to a section in the Bentley that I had
overlooked
> (it's in the index up front).
>
> I had suspected something in the vacuum area and sure enough, I discovered
> that the cruise control servo unit (the one with the rubber cone shaped
> bellows that pulls on the throttle) has a wee little hole in the rubber
> part.  I disconnected the vacuum hose at the juction near the vacuum pump
> and found that if I sucked on the tube, the servo moved but wouldn't hold
> the vacuum.  I then sprayed the rubber part of the servo with windex to
get
> it wet and then blew on the vacuum hose and looked at the bulging rubber
> cone.  There's where the tiny whole was.
>
> Well, it did its job for some 15 years, it doesn't owe me anything, I
guess.
>   I looked on the Bus Depot web catalog and couldn't find one there.  I've
> sent them an email inquiring about it.  So I will eventually get a
> replacement, should be a simple fix
>
> John Graham
> 88 Westy
> Charlotte, NC
>
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