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-   -   OEM E-Disco (Smartbar) Study (http://www.jeepforum.com/forum/f96/oem-e-disco-smartbar-study-1135688/)

ronjenx 12-01-2010 09:56 PM

OEM E-Disco (Smartbar) Study
 
I have been wondering how the Smartbar works, and if it can be successfully disassemble, serviced, and reassembled.

The Smartbar is made by American Axle & Manufacturing.

Mechanically it is pretty simple. It's the computer control and the circuit board that will most likely cause problems. I was hoping to see a way to make it manually operated.

http://i776.photobucket.com/albums/y...Overview-1.jpg

http://i776.photobucket.com/albums/y...2SplitOpen.jpg

http://i776.photobucket.com/albums/y.../3LeftSide.jpg

http://i776.photobucket.com/albums/y...4RightSide.jpg

http://i776.photobucket.com/albums/y...torRemoved.jpg

http://i776.photobucket.com/albums/y...rSpkitOpen.jpg

http://i776.photobucket.com/albums/y...arsRemoved.jpg

http://i776.photobucket.com/albums/y...rviewApart.jpg

Here is a picture of the electrical connector. I don't know if anyone has wired in a bypass switch (like the lockers), but it looks like the computer control is too involved.


http://i776.photobucket.com/albums/y...lConnector.jpg

Imped 12-02-2010 12:32 AM

Eh. I'd ditch that silly contraption that's not doing you any good when disconnected and get a Currie AR. Nice job on the analysis, though.

1222 12-02-2010 02:40 AM

Wow, very impressive ronjenx. Do you just happen to have one lying around or does it belong on your Jeep?
I always wondered how it worked. Great write-up.:thumbsup:
:cheers2:




Imped, curious why you say its not doing you any good when disconnected. It makes a big difference on my Jeep. It has also been around for several years now with lots of satisfied people. Is it possibly that you have TJ (Iíve had a couple of TJís and like them allot) which of course doesnít have one? I donít need a lesson on how the Currie product works, Iím well aware of that. I also know itís a great product too.

Now just suppose for fun that you had a JK with the Smartbar, would you actually remove it and install a Currie one instead? I think I already know what your answer will be but still go ahead with it.
:cheers2:

Imped 12-02-2010 09:05 AM

If you know how the Currie works (just a torsion bar), then you should understand why being totally disconnected in the front is putting you at a disadvantage. In that situation, your rear sway bar is the only member influencing the behavior of the frame relative to the axles, which causes natural instability. Having a similar member acting on the front of the frame in an equal but opposite manner cancels out that instability, keeping the frame/body neutral relative to the axles. Steep climbs, ruts and off-camber situations are also made much more comfortable due to the extra influence and control. I think it's obvious, but regardless of JK or TJ or 3, 4, or 5 links, link suspensions benefit from having a front and rear sway bar. If I were to purchase a JK Rubi, the FIRST thing I would do is remove and sell the e-sway bar system, purchase a Currie AR, and pocket the rest. Then would come the housing beef, gears, and 37's. :thumbsup:

jstrubberg 12-02-2010 09:12 AM

Have their been problems with the electronics on the disco's?


You know what they say about the interest rate on borrowed trouble.

thejdj 12-02-2010 10:28 AM

Great pics and nice info. Thanks for sharing.

krutj 12-02-2010 10:28 AM

Great write up ronjenx.....

I'm also curious about your supply of parts to disassemble..:laugh:

All of your studies have been very informative and detailed, thanks....:cheers2:

ncb 12-02-2010 10:37 AM

Great write up as always. Reminds me of airframe and powerplant tech classes.

Washi 12-02-2010 10:47 AM

Quote:

Originally Posted by ncb (Post 10549244)
Great write up as always. Reminds me of airframe and powerplant tech classes.

Who did you get your A&P through?

Vin 12-02-2010 01:20 PM

Quote:

Originally Posted by Imped (Post 10548667)
If you know how the Currie works (just a torsion bar), then you should understand why being totally disconnected in the front is putting you at a disadvantage. In that situation, your rear sway bar is the only member influencing the behavior of the frame relative to the axles, which causes natural instability. Having a similar member acting on the front of the frame in an equal but opposite manner cancels out that instability, keeping the frame/body neutral relative to the axles. Steep climbs, ruts and off-camber situations are also made much more comfortable due to the extra influence and control. I think it's obvious, but regardless of JK or TJ or 3, 4, or 5 links, link suspensions benefit from having a front and rear sway bar. If I were to purchase a JK Rubi, the FIRST thing I would do is remove and sell the e-sway bar system, purchase a Currie AR, and pocket the rest. Then would come the housing beef, gears, and 37's. :thumbsup:

I was contemplating this, BUT would this effect the ESP? Now the computer think there is no sway bar connected. It sucks having 5 computers running your rig.

1AAdam 12-02-2010 01:28 PM

great write up! i was suspect of it at first but i feel this system will work fine now! i am sure it can be made manually operated but the ESP may freak out. i don't know if they talk to each other though. i hope not!

JLC08JK 12-02-2010 01:39 PM

Added to the F.A.Q.
Thanks again Ron :tea:

ncb 12-02-2010 04:14 PM

Quote:

Originally Posted by Washi (Post 10549288)
Who did you get your A&P through?

South Western in Michigan. Small school in the middle of nowhere. They were a diamond in the rough. They since shut down the AMT program from small class sizes.

Imped 12-02-2010 04:19 PM

Quote:

Originally Posted by Vin (Post 10550197)
I was contemplating this, BUT would this effect the ESP? Now the computer think there is no sway bar connected. It sucks having 5 computers running your rig.

No clue but if so, that SUCKS. Computers FTL.

JLC08JK 12-02-2010 04:34 PM

It looks like the default position is with the sway-bar fully connected.
Therefore the computer is told when the bar is disconnected and will not receive a signal otherwise.
Thats my guess! :tea:


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