UKPnG Season 9 - Pacific Raceways - Jan 9

[Geoffers]

Enjoyed the race, especially the first half chasing Clive, but seriously mystified by why I was so far off the pace. I watched John & Ivan in practice to try & get some clues, John is always better on the brakes & I am resigned to always being a second slower but I could not figure why I was so much slower than Ivan. I seemed to be later on the brakes & earlier on the gas yet was 2s slower! I think I really must be way off on the setup although the car feels really good. 

Anyway was good fun & congrats to the podium.

Clive, I think you need to service your pedals, your brake lights were flashing on & off going down the straights!

[Alex vV]

Clive, I think you need to service your pedals, your brake lights were flashing on & off going down the straights!

Noticed that also when you were lapping me..

[Clive Loynes]

Thanks Geoffers and Alex.

You are right but I have not found a reasonable source of good replacement pots as yet.

I have put a hefty dead band on the brake pedal so although the light flashes I'm hoping that the brakes are not being applied.
 
The bigger problem is that the throttle is flickering at full chat so on some occasions I don't get full throttle either!

Very well done to John and Ivan!  I think we should adopt the 289 as the SBRC mascot.  Also congratulations to Federico.

@ Matt regarding: "Next LCC race is a short track with some light handicapping."  I'm handicapped enough already!   

[EvilClive]

I noticed that my brake lights were also flashing when I watched a replay of some of my practice laps. I guess my G25 is suffering the same problem as Clive's. I too programmed in a large dead zone in the hope of eliminating any drag.....or I could claim that as the reason I have not won any races yet 

BTW Clive I did have a problem with my Accelerator just like you are reporting and I decided that the Clutch pedal is far less important than the Go pedal...So I swapped the pots over with the aid of some deft soldering. The pots are identical on all pedals in the G25, it is just how the software interprets the inputs that changes things. It is a little fiddly stripping it down but a good project for a rainy Saturday afternoon. 

[Clive Loynes]

Thanks Clive but I already did that about 18 months ago.  All of the pots are now knackered and cleaning them doesn't restore them for long enough to warrant undoing the million screws to get at them.

I really want to find a good pot that I can fit instead of the manky carbon track items that Logitec use.  I have found that "Vishay" probably make one but they are about £15 each!  And I need 3!!!!

[johnw]

These people are working on a hall sensor replacement for the G25 pots. Might be worth a look:
http://www.totalspanishsimulator.com/wp/en/info-mod-sensor-hall-g25g27/

[goldtop]

Can't you just buy some similar value pots and use the tracks to replace the worn out ones in the original pots? Failing that you could always try "cleaning" the old ones up by scraping the inner and outer edges of the tracks with a sharp blade. I've done this with old guitar volume pots to rescue them.

http://www.geofex.com/article_folders/potsecrets/potscret.htm

[IvanStanchev]

I have the same problem with my g27 pedals. All three are doing what they want. Before every race i make several offline laps to see if the ghost's lights are flashing. To solve it i'm driving with 50% deadzone on the cluth 10 % on the gas and break pedal. The clutch was break before but i switched them because can't drive with 50% deadzone on the brakes This works for now on my wheel. Tried to fix the pots but they are so damaged and it's better not touching anything.

[dave curtis]

As you are discussing pedal issues, I'll also chime in...

A few months ago,  my G25 accelerator pedal was spiking quite a lot, particularly visible when running through the calibration process.   I didn't go as far as pot removal/strip down/track wipe,  but was able to get some contact cleaner in the pot through a hole that I recall being up-facing (not tried it yet,  but knowing where that is now - it may be possible to get in there armed with a torch & contact cleaner with a thin flexible tube...)

Been ok so far, but I expect I'll be in there again at some point.


Maybe not too relevant here,  but also tried same trick on the H shifter as 2nd gear was sometimes ending up as 2nd, 4th or neutral.  Upon reassembly, noticed the lugs/ears sticking out the lower part of the shaft were part ground away from where they were engaging with the side plates/gate.  Just loosened them so as to turn them over;  worked fine on a recent test event!

One thing is for sure - I'd never make it on the Logitech production line!  Hopefully no need to crack those things open again for a while.

Cheers,
Dave.

[Clive Loynes]

Spent a couple of hours last night taking the pedals and pots apart and cleaning everything.  I also gave the wipers on the pots a good twasting to make sure that they would be running on a new bit of the carbon track.

Seems to have worked but I am still looking for a better quality pot that I can fit and forget.