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  #16  
Old 04-19-2004, 03:35 PM
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Quote:
Originally posted by Wasuchi
Anyone have any idea if these things could be plugged into the transducer that the original cruise control used to monitor the speed?
It should be possible, and I plan to try it whenever my Rostra cruise control gets here (hopefully soon). I don't see any reason why it shouldn't work.
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  #17  
Old 04-19-2004, 04:45 PM
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Quote:
Originally posted by Wasuchi
I want to keep this thread alive a little bit longer!

Anyone have any idea if these things could be plugged into the transducer that the original cruise control used to monitor the speed? For mine it's on the back of the speedometer but I think it's somewhere along the cable coming from the transmission on earlier cars. Seems like that would be easier than fixing a new sensor on the driveshaft plus it's one less part to buy.
Might work, but one of the things I wanted to get away from was the sensor on the cable/speedo head. A signal off the driveshaft itself makes a lot more sense than the comparitivly fragile speedo driven off a cable to me.

I'll check it, and other things, here shortly. Pics by this afternoon, I promise!
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  #18  
Old 04-19-2004, 04:51 PM
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Quote:
Originally posted by wolf_walker
Might work, but one of the things I wanted to get away from was the sensor on the cable/speedo head. A signal off the driveshaft itself makes a lot more sense than the comparitivly fragile speedo driven off a cable to me.
I would imagine as long as your speedo is functioning properly that wouldn't be a problem (and if it isn't, that seems like the kind of thing you'd want to fix anyway! ;-).

My speedometer appears to be electric. No speedo cable (at least to the speedo itself; obviously it's getting its signal from somewhere!).
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  #19  
Old 04-19-2004, 07:48 PM
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Quote:
Originally posted by 81Wagon
I would imagine as long as your speedo is functioning properly that wouldn't be a problem (and if it isn't, that seems like the kind of thing you'd want to fix anyway! ;-).

My speedometer appears to be electric. No speedo cable (at least to the speedo itself; obviously it's getting its signal from somewhere!).
I think the w126 speedo is electric, dunno how they handle that.

I do know that while my speedo sees to function fine, I can kinda slalom side to side and watch the needle sway a few mph with the inertia. I'm not sure if it effects the cruise signal or not, but it coincided with some of my surging. I like the direct shaft reading because it removes the middleman, which is a path to reliability.
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  #20  
Old 04-19-2004, 09:01 PM
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Photos.
1. Pay no attention to my vacuum system, it's currently in a testing state for shift related stuffs.
2. The cruise is not perminant the way it sits, just an initial testing setip, yes I know it looks ratty.
3. Please excuse me from testing stuff today as just after I took these photos I very nearly cut the tip of my finger off.
4. Please don't ask about #3 as it's a llittle embarising.


Pic 1, the little module and harness. Four plastic conections, two to servo, one for speed sensor, and one to the control stalk.
Two hot wires, and two to the brake light switch. Grounds through the servo mounting. All there is to the wireing. I'l evenually get it working with the stock control stalk, I'm almost positive it's posible. And I have a few other pet thoughts dealing with wireing. I personaly like the driveshaft mounted speed sensor, bit if nobody beats me to it I'll see if the OEM sensor will work with this cruise.
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Aftermarket Cruise Up And Running..-cruise1.jpg  
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  #21  
Old 04-19-2004, 09:02 PM
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Pic 2, the servo and my possibly not needed vacuum sphere.
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Aftermarket Cruise Up And Running..-cruise2.jpg  
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  #22  
Old 04-19-2004, 09:04 PM
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Pic3, attached to the OEM servo and linkage.
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Aftermarket Cruise Up And Running..-cruise3.jpg  
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  #23  
Old 04-19-2004, 09:05 PM
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..
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  #24  
Old 04-19-2004, 09:06 PM
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.
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  #25  
Old 04-19-2004, 09:09 PM
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I would like to shorten the cable on the servo, giving it a more direct pull on the throttle. I think that will be about all that can be done with it.

The length of pull the servo has to work with is not enough to go to WOT. I can give it that length with a lever, bit it will make it harder to pull. We shall see.

As it is right this second, it works tolerably for the cost and probable reliability. To me at least.
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  #26  
Old 04-19-2004, 09:48 PM
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Quote:
Originally posted by wolf_walker
The length of pull the servo has to work with is not enough to go to WOT. I can give it that length with a lever, bit it will make it harder to pull. We shall see.
Wouldn't giving it a lever make it EASIER to pull? That's the reason I put a lever on mine, anyway ;-). Also, I removed the stock actuator entirely to get rid of its extra little bit of drag on the linkage. In your case you could at least disconnect the last piece of the linkage to the actuator arm.

Here's a picture of my setup (not much as I'm still waiting on the cruise to get here!). I removed the linkage to the old actuator completely, and added a little bit of length to the lever arm where it used to attach:
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  #27  
Old 04-19-2004, 10:12 PM
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Quote:
Originally posted by 81Wagon
Wouldn't giving it a lever make it EASIER to pull? That's the reason I put a lever on mine, anyway ;-). Also, I removed the stock actuator entirely to get rid of its extra little bit of drag on the linkage. In your case you could at least disconnect the last piece of the linkage to the actuator arm.

Here's a picture of my setup (not much as I'm still waiting on the cruise to get here!). I removed the linkage to the old actuator completely, and added a little bit of length to the lever arm where it used to attach:
A longer lever would make it easier, but it would reduce the travel, a shorter one will make it harder to pull but move a greater distance. It already has a couple inches of lever using the OEM's little setup. I left the rod from servo to linkage just to hold the loop on the ball stud. When the OE servo is disengaged it has almost zero drag.

And like I said, it's a work in progres.. Other than to take the photos I have not opened the hood since I installed it the other day.
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  #28  
Old 04-21-2004, 01:26 PM
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Well Crap-O. First attempt at using the stock cruise stalk was not a success. I need to interupt a 12v+ line at the same time as sending 12v+ to another for setting speed. I can accelerate and theoreticaly resume ok, just can't interupt that other line's 12v, so no set. I belive I can do it with a relay, just messier than I wanted.

We'll see...
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  #29  
Old 04-22-2004, 07:36 PM
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Using a relay will work, I have to go fetch a diode or two to activate all the functions of the cruise with the overly simple OEM control stalk. But it'll work, just drove around and set it fine.



Word of warning in advance, most cruises are probibly different, it's not going to be something I can say ok put x wire on y terminal and your good. In the least I'll need to know the pinout and functioning voltage of a given cruise setup, then I can probibly figire it out for anyone wanting to know.

I'll get back top the mechanical end of things eventually.
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  #30  
Old 04-23-2004, 07:21 PM
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Done.

Aftermarket cruise alive and well controled via OE cruise stalk.
~joy~
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