Date:         Mon, 12 Jun 2006 07:12:25 -0700
Reply-To:     Richard Koerner <RKoerner@AVANTMEDICAL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Richard Koerner <RKoerner@AVANTMEDICAL.COM>
Subject:      Re: I Love My New Cruise Control (Long)
Content-Type: text/plain; charset="us-ascii"

Success UPDATE!:  Per listmember Jason's hint last week about checking
the slack in the (Audiovox CCS 100 cruise control) servo unit cable to
the throttle, I discovered mine was too long by 3 links of the ball
chain. I trimmed them off, so as now to have just a small amount of
slack.  (I don't know if slack developed after months of use or whether
I just had installed it incorrectly.)

What a difference!!  Now the unit locks in immediately after pushing the
"SET" button, and it holds rock solid! Speed variation is maybe
plus/minus 1/2 MPH; when you "tap up" or "tap down" to raise or lower
set point, that happens immediately, too. 

So, I'm very pleased with the unit, and highly recommend it.  My problem
was that the servo was at the very far end of its travel, and couldn't
keep up to compensate with speed variations.  Now it's where it should
be; an easy fix that now makes perfect sense.

Rich
'85 GL
San Diego
 
-----Original Message-----
From: Richard Koerner 
Sent: Wednesday, May 31, 2006 7:38 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: I Love My New Cruise Control (Long)

Jason,

I, too, have the Audiovox CCS 100 cruise control, but have been
frustrated with getting proper performance.  After a lot of
trial-and-error testing with the dip switches, here's my best
recommendation at switch settings:  

(Note:  I have an '85 GL with 4 speed manual and hooked up 2 magnets to
the CV Joint hub, and I have a vacuum "accumulator" I got from NAPA
hooked up in-line to the vacuum source, which was leftover from my old
cruise control. Also, the Black Jumper next to Switch #1 is removed.)

Switch 1 ON             Pulses per Mile @ 4000
Switch 2 OFF    Pulses per Mile @ 4000  
Switch 3 ON             For using magnets on axle & pickup 
Switch 4 OFF    Sensitivity HIGH (for low power/heavy vehicles)
Switch 5 ON             Sensitivity HIGH (for low power/heavy vehicles)
Switch 6 OFF    Dash Control switch normally open
Switch 7 ON             Coil is the selected Tachometer source

With PPM at 2000, control drifts plus/minus 4 MPH.  With PPM at 5000 or
8000, will not engage at all.

Performance is OK, but usually goes something like this:  I hold the
"SET" button for 3 to 5 seconds at 60 MPH and gently lift foot off gas
pedal; speed drifts down to about 55 MPH and cruise control takes over;
speed gradually increases (over about 45 second period) up to 60 MPH and
holds plus or minus 1 MPH.  Speed will again drift downward going up a
gentle hill, and then overshoot when going down the other side, but
generally winds up around 60 MPH after a bit.

My old (defunct) cruise control was a lot more responsive than this one;
should be fine on the long, flat drives, which is mostly what I got it
for.

Rich
'85 GL


Subject: Re: I Love My New Cruise Control (Long)

A friend and I tried putting one of these Audiovox cruise controls
into my '84 manual Westy this weekend. Something seems wrong. We set
it to use just the coil (no magnets, no VSS wire) for speed
regulation, but I've been unable to get the speed to stick at anything
other than ~35 mph in 3rd gear or ~50 mph in fourth. And even then
it's quite prone to drifting slower. Tapping the 'Accel' button often
gives a brief surge, but then falls off completely.

At first, we suspected low vacuum, and tried just about every
connection the vacuum line would fit. Then, from some gerry list
archive searches, we thought that maybe the engine might just not
create enough vacuum, so we built and installed a vacuum reserve tank,
but that didn't seem to improve anything either.

So now I'm stuck. Any hints or ideas on how to get the Audiovox CCS100
working well in a manual transmission Vanagon?

Thanks.
  -jrs