Maintenance of Momo Racing 2/2

As I said there are some days, I noticed that my Momo Racing has suffered from a well-known problem of his model, a flagrant lack of precision in the pedal. 

The cause ? 
Basically, the axis of rotation of the pedal rests on a support which will eventually wear over time. It is possible to laterally move the accelerator. And as the potentiometer shaft is directly driven into the rotation axis, so it is possible to make it move in this lateral movement, without changing the pressure on the pedal. This causes sending erroneous data to the computer, so to the simulator. Worse, since the wheel is in USB, the calibration of the steering wheel-pedal is changed in large proportions every time the computer is turned on and you calibrate your set again before the race. 

The results ? 
Impossible in these conditions to hope to be regular in practice session or qualifications, and therefore to be able to prepare the car properly. For many, this is also manifested by a loss of performance : instead of delivering 100% of engine power, the accelerator will allow to reach the 80%. For my part, I also noticed signal pikes when with 50% of pressure, the accelerator could deliver up to 75% power in spurts. Unable to maintain a defined engine speed in these conditions and therefore have a fine control in curves. And it's in the corners that the race is won. 

The repair ? 
After cleaning everything correctly, each person repaired in its own way : normal tape around the axis, Teflon tape, adding springs... to remove the problem of the axis of rotation. For my part, I used the electrician tape. I did not put on the axis, but on the support of the axis. Why? Because the tape is not enough adhesive to hold in place correctly. Some layers were necessary : ​​three for the inner side of the axis, two outside. To maintain the support, I tried to glue... unsuccessfully... before I realized that the only spring force would suffice. To this I obviously added grease on both accelerator-brake axis, although the surface of the tape is smooth enough to allow gliding.

The result ? 
For now, I found an accelerator and a brake that finally work properly. No more signal spikes, no dead zone, no wacky calibration. Proof of this are the results in Dxtweak as well as on the track. So I'm not as bad as I thought. I think that I have still much progress to make, but my material has especially much affected my results and also my pleasure to run.

To go further
 The best article that discusses in depth the failure of Momo Racing : http://web.axelero.hu/mozso/momo_e5.html
 
Downloads 
Here are links to tools that will be needed. Because the addresses indicated in the above articles are no longer valid at the time of this writing : 
- The utility to remove the steering wheel calibration (Logitech clear calibration utility) : http://download01.logitech.com/web/ftp/pub/techsupport/joystick/lws_clrc.exe
 - The utility to check the operation of the axes, more accurate than what Windows can provide : http://dl.racingfr.com/rFactor2/Divers/DXTweak2.exe.

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