MOMO pots

Well, it was only a matter of time, but I need to replace the throttle pot on my MOMO, it started acting up, so it got pulled/opened/cleaned/lubed/re-assembled/-re-installed, and it seems to be working fine now, but there was evidence of wear at the points that the metal fingers sweep on the surface that the wires are connected to. The pots say 10-30K on the case, have 3 wires attached, and the shaft is half cutaway where it enters the pedal itself. Has anyone had any success finding a replacement yet? It appears that the throttle and brake are the same pot, I asked over on the Wingman board if they were available from Logitech, I was told that they are not, and was also told that the new optical pots from the new version MOMO would not be a direct replacement either. Wheel is working fine for now, but the clock is ticking.....Any ideas out there? Ed

Look on the cover and see if there is a part number or Mfg listed, do a search on net. Try Digi-key "Ed White" <[email hidden]> wrote in message news:0ecF9.399$[email hidden]... > Well, it was only a matter of time, but I need to replace the throttle pot > on my MOMO, it started acting up, so it got > pulled/opened/cleaned/lubed/re-assembled/-re-installed, and it seems to be > working fine now, but there was evidence of wear at the points that the > metal fingers sweep on the surface that the wires are connected to. Thepots > say 10-30K on the case, have 3 wires attached, and the shaft is halfcutaway > where it enters the pedal itself. Has anyone had any success finding a > replacement yet? It appears that the throttle and brake are the same pot,I > asked over on the Wingman board if they were available from Logitech, Iwas > told that they are not, and was also told that the new optical pots fromthe > new version MOMO would not be a direct replacement either. Wheel isworking > fine for now, but the clock is ticking.....Any ideas out there? > Ed > >

"Tom Osbon" <[email hidden]> wrote in message news:DMdF9.6330$[email hidden]... > Look on the cover and see if there is a part number or Mfg listed, do a > search on net. Try Digi-keyThanks for the tip, Tom........ Ed

If you have a number you can't find, shoot me an email and i will try and help, I have lots of electronics catalogs. "Ed White" <[email hidden]> wrote in message news:hZdF9.2534$[email hidden]...

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> > "Tom Osbon" <[email hidden]> wrote in message > news:DMdF9.6330$[email hidden]... > > Look on the cover and see if there is a part number or Mfg listed, do a > > search on net. Try Digi-key > Thanks for the tip, Tom........ > Ed > >

As far as I know, only the steering "pot" is optical on the new MOMO. Don't know if the pedal pots are interchangeable, though. What does Logi suggest you do--throw out the wheel? Marc "Ed White" <[email hidden]> wrote in message news:0ecF9.399$[email hidden]... > Well, it was only a matter of time, but I need to replace the throttle pot > on my MOMO, it started acting up, so it got > pulled/opened/cleaned/lubed/re-assembled/-re-installed, and it seems to be > working fine now, but there was evidence of wear at the points that the > metal fingers sweep on the surface that the wires are connected to. Thepots > say 10-30K on the case, have 3 wires attached, and the shaft is halfcutaway > where it enters the pedal itself. Has anyone had any success finding a > replacement yet? It appears that the throttle and brake are the same pot,I > asked over on the Wingman board if they were available from Logitech, Iwas > told that they are not, and was also told that the new optical pots fromthe > new version MOMO would not be a direct replacement either. Wheel isworking > fine for now, but the clock is ticking.....Any ideas out there? > Ed > >

No. If the wheel is out of warranty they suggest you pack it up and ship it to them. Then for about $150 they'll send you another one (refurbished?). They know that nobody in his right mind would ever do this, so I guess they expect you to throw it out. But, they never actually suggest that you do that. They don't carry parts (it's a sales center and the parts are in China, I think). The customer service rep I talked to said that consumers don't have the training to be able to replace parts and could damage the wheel. Of course, it's already broken, but I guess he meant they'd break it more. -- Slot Tweaks & Reviews www.slottweak.com "Marc Collins" wrote > What does Logi suggest > you do--throw out the wheel? > > Marc >

10-30K seems a strange way to mark the potmeter but I guess they are 30k. I measured mine to be 20k I think (or was that my MS pedals?). The pots resistance is however not important as it acts as a voltage divider, but it has to be a linear pot not a logarithmic. Besides it looks like these pots has a rotation of something like 90 degrees, not 300 like normal pots. I browsed through two electronics catalogs but was unable to find any pots with rotation below 250 degrees. If you have the pedals opened, could you take out one of the pot's to see how far it rotates? I've read some of the other answers to your post, and if you have no success finding pot's, you have a good excuse to get some high end pedals like BRD or Redline. If you want a cheap solution that is actually better then the momo pedals, get a non FF Microsoft Wheel, throw away the wheel and connect the pedals to your momo with this adapter: http://tytlandsvik.no/momo/ Jone.

I'm not sure that the actual pot value is all that critical to Logitech pedals. The old LWFF pedals used pots marked 10-30k (measured as 30k on ohmeter). I used stock CH pedals with that wheel by just swapping the wiring harness (used the LWFF harness on the CH pedals). The CH pedals use a 100k pot and they worked fine. Next I made my own pedals using 100k pots from radio shack. These also worked fine but I did have to fine tune the rotation (by gearing/ geometry) to get a full linear response. Next I got a Momo wheel. I never even tried it with the stock pedals. I swapped the Momo harness with the LWFF harness on my pedals and it was good to go. I think the calibration compensates for the differences in the pedals which are low tech (no circuit board). The real question is where to get replacements for the wheel pot. This tiny pot is made by CTS. there is a good picture of what it looks like here: http://www.tomshardware.com/consumer/02q2/020524/wheel-10.html It has some numbers on it and measures 50k. Any info on this would be great. With all the Momo wheels out there we'll be needing these someday. Spark

"Ed White" <[email hidden]> wrote in message news:0ecF9.399$[email hidden]... > > Has anyone had any success finding a replacement yet? I replaced my entire pedal setup with TSW2 pedals and used the wiring from the Momo wheel to go to the TSW2 POT's. It works fine. They are 250k ohm. - Dave

"Jone Tytlandsvik" <[email hidden]> wrote in message news:as4tt2$n5iv1$[email hidden]... > 10-30K seems a strange way to mark the potmeter but I guess they are 30k.I > measured mine to be 20k I think (or was that my MS pedals?). The pots > resistance is however not important as it acts as a voltage divider, butit

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> has to be a linear pot not a logarithmic. Besides it looks like these pots > has a rotation of something like 90 degrees, not 300 like normal pots. I > browsed through two electronics catalogs but was unable to find any pots > with rotation below 250 degrees. If you have the pedals opened, could you > take out one of the pot's to see how far it rotates? > > I've read some of the other answers to your post, and if you have no

success > finding pot's, you have a good excuse to get some high end pedals like BRD > or Redline. If you want a cheap solution that is actually better then the > momo pedals, get a non FF Microsoft Wheel, throw away the wheel andconnect > the pedals to your momo with this adapter: http://tytlandsvik.no/momo/ > > > Jone.Jone, one of the things I noticed while I had the pedals apart, was that Logi was only using a small part of the pots actual rotation.....they may well have been 300 degree rotation, but as the shaft of the pot is inserted directly into the pivot portion of the pedal, they're only using maybe 15-20 degrees worth of the available rotation. In replies below it's been mentioned to replace the pedals, I've never really had a problem with the pedals, compared to my old Thrustmasters the MOMO's are great.....and I'm just cheap and persistent enough to fix these eventually, they're working fine now......for a while.....then I'll be browsing the electronics catalogs to find my replacement. Failing all that, if I HAVE to buy better pedals, you're right, I have a good excuse! Thanks, Ed

"spark" <[email hidden]> wrote in message news:pInF9.6524$[email hidden]...

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> are low tech (no circuit board). The real question is where to get > replacements for the wheel pot. This tiny pot is made by CTS. there is a > good picture of what it looks like here: > > http://www.tomshardware.com/consumer/02q2/020524/wheel-10.html > > It has some numbers on it and measures 50k. Any info on this would be

great. > With all the Momo wheels out there we'll be needing these someday. > http://www.ctscorp.com/electro/ffpots.htm It looks like a Series 251 with a custom made housing. It may very well be impossible to get with this housing, but it may be possible to remove the cover with the "arm" from the old pot and glue it onto the new pot. Do you have the numbers on it? Jone.

There are 3 numbers on this pot plus the CTS marking. The number in the upper left is 10, upper right 3A, lower left 18. The shaft diam is 5mm, the housing is 10mm wide. That's it for markings. The little bracket mount would be easy to rig. Getting the actual pot is the challenge. Thanks, Spark

Could it be this pot? http://www.ctscorp.com/electro/295pot.htm "Angle of Rotation Total Rotation: 300� � 5� *Effective Rotation: 50� approximate (typical joystick control use). Special are available at extra cost." Jone.

Looks very close to me other that the keyed shaft. "Jone Tytlandsvik" <[email hidden]> wrote in message news:as59hd$o3ji7$[email hidden]...

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> Could it be this pot? > > http://www.ctscorp.com/electro/295pot.htm > > "Angle of Rotation > Total Rotation: 300� � 5� > *Effective Rotation: 50� approximate > (typical joystick control use). Special are > available at extra cost." > > Jone. > >

Actually now that I look at the datasheet that one is available with the keyed shaft so it might be close. "Schooner" <[email hidden]> wrote in message news:XhqF9.213633$[email hidden]...

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> Looks very close to me other that the keyed shaft. > > "Jone Tytlandsvik" <[email hidden]> wrote in message > news:as59hd$o3ji7$[email hidden]... > > Could it be this pot? > > > > http://www.ctscorp.com/electro/295pot.htm > > > > "Angle of Rotation > > Total Rotation: 300� � 5� > > *Effective Rotation: 50� approximate > > (typical joystick control use). Special are > > available at extra cost." > > > > Jone. > > > > > >

"Dave Cook" <[email hidden]> wrote in message news:96oF9.4779$[email hidden]... > "Ed White" <[email hidden]> wrote in message > news:0ecF9.399$[email hidden]... > > > > Has anyone had any success finding a replacement yet? > > I replaced my entire pedal setup with TSW2 pedals and used the wiring fromthe > Momo wheel to go to the TSW2 POT's. It works fine. They are 250k ohm. > > - Dave > Didn't Jens or somebody here in RAS find the Chinese manufactuer of the pots? It wasn't that long ago they were talking of this. Maybe google groups will pin it down. dave henrie

"Jone Tytlandsvik" <[email hidden]> wrote in message news:as59hd$o3ji7$[email hidden]...

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> Could it be this pot? > > http://www.ctscorp.com/electro/295pot.htm > > "Angle of Rotation > Total Rotation: 300� � 5� > *Effective Rotation: 50� approximate > (typical joystick control use). Special are > available at extra cost." > > Jone. > >

Damn Jone, you're good.....If that is not the series of pot in my pedals, then I'm Elmer Fudd. Can is the right size, shaft (flatted) and mtg bushing look right, the drawing appears exactly as the pot in the pedals appears, if it had the flatted shaft.My memory is not that good, tho it appears that Logi used the same pot for gas and brake, mounting tab location may be different between the two. If I need to open the pedal base again any time soon, I'll be sure to note any differences and let y'all know. Meanwhile, my fingers are crossed, that my repair lasts this whole 4 day weekend here in the states. Happy Turkey Day! Thanks, Ed

> http://www.ctscorp.com/electro/ffpots.htm Jone, spark, the pic of the series 295 pot shown on the page from the above link looks almost exactly like what I saw in my pedals, I would say from the pic and the tech description from the previous link, that this is almost definitely the pot.Close enough for me to go check the price, right now. Ed

Let us know what you find out. I know Digikey cares CTS but not sure about that exact one. "Ed White" <[email hidden]> wrote in message news:XJsF9.17668$[email hidden]... > > > > > http://www.ctscorp.com/electro/ffpots.htm > > Jone, spark, the pic of the series 295 pot shown on the page from theabove > link looks almost exactly like what I saw in my pedals, I would say fromthe > pic and the tech description from the previous link, that this is almost > definitely the pot.Close enough for me to go check the price, right now. > Ed > >

On November 28 2002, "Dave Henrie" <[email hidden]> wrote:

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>> Has anyone had any success finding a replacement yet? >> >> I replaced my entire pedal setup with TSW2 pedals and used the wiring >> from > the >> Momo wheel to go to the TSW2 POT's. It works fine. They are 250k >> ohm. >> >> - Dave >> > Didn't Jens or somebody here in RAS find the Chinese manufactuer of > the pots? It wasn't that long ago they were talking of this. Maybe > google groups will pin it down. > dave henrie

That was prob me, I contacted the mfg (CTS) for replacements for the original logi pedal pots and got a quote but had to purchase from China in multiples of 1000 pcs. They were a special made only for Logi, as I suspect these are too. Not that it should stop anyone with the will from finding a suitable replacement<S> Cheers. MikeT. -- If you want to email me then use this: MikeT at dsl dot pipex dot com

Is the Momo steering pot the same as the pedal pots? They were on the older LWF & LWFF. If so, I'd think you could just get pedal pots from CH, since they're the same shape and work fine wired into the Logitech harness. "MikeT" <[email hidden]> wrote in message news:[email hidden]...

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> On November 28 2002, "Dave Henrie" <[email hidden]> wrote: > > >> Has anyone had any success finding a replacement yet? > >> > >> I replaced my entire pedal setup with TSW2 pedals and used the wiring > >> from > > the > >> Momo wheel to go to the TSW2 POT's. It works fine. They are 250k > >> ohm. > >> > >> - Dave > >> > > Didn't Jens or somebody here in RAS find the Chinese manufactuer of > > the pots? It wasn't that long ago they were talking of this. Maybe > > google groups will pin it down. > > dave henrie > > That was prob me, I contacted the mfg (CTS) for replacements for the > original logi pedal pots and got a quote but had to purchase from China > in multiples of 1000 pcs. > > They were a special made only for Logi, as I suspect these are too. Not > that it should stop anyone with the will from finding a suitable > replacement<S> > > Cheers. > > MikeT. > > -- > If you want to email me then use this: > > MikeT at dsl dot pipex dot com > >

"MikeT" <[email hidden]> wrote in message news:[email hidden]...

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> That was prob me, I contacted the mfg (CTS) for replacements for the > original logi pedal pots and got a quote but had to purchase from China > in multiples of 1000 pcs. > > They were a special made only for Logi, as I suspect these are too. Not > that it should stop anyone with the will from finding a suitable > replacement<S> >

Do you know exactly what the difference from one of their standard pots was? Jone.

"Steve Blankenship" <[email hidden]> wrote in message news:[email hidden]... > Is the Momo steering pot the same as the pedal pots? They were on theolder No. This looks very much like the steeringpot: http://www.ctscorp.com/electro/251pot.htm And this one could be the pedal pot: http://www.ctscorp.com/electro/295pot.htm The last one has the same mechanical dimensions, I suppose it could be a replacement even if the one Logi used is a special version. Logi used 30k but 30k is not available in the standard range. The steering pot however is more suspicious, as it's standard range is only available in a rotation angle of max 110 degrees. So Logi must have gotten a special version of this pot, or is the pot geared down inside the momo? If it's directly connected to the wheel axle, it has to rotate close to 300 degrees. Jone.

"Ed White" <[email hidden]> wrote in message news:tEsF9.17494$[email hidden]... > Damn Jone, you're good.....If that is not the series of pot in my pedals, > then I'm Elmer Fudd. Can is the right size, shaft (flatted) and mtgbushing Spark gave it to me Elmer... Ehh Ed! > look right, the drawing appears exactly as the pot in the pedals appears,if > it had the flatted shaft.My memory is not that good, tho it appears that > Logi used the same pot for gas and brake, mounting tab location may be > different between the two. If I need to open the pedal base again any time The pots are the same they are just mounted in opposite directions. Jone http://tytlandsvik.no

On November 28 2002, "Jone Tytlandsvik" <[email hidden]> wrote: > Do you know exactly what the difference from one of their standard > pots was?> ? I seem to remember (cant find my notes) that there was no threaded attachment flange, it was plain and the resistance was not progressive throughout the pots total movement but lots of resistance change for a small movement of the wiper in one area. The pedal pot you indicated seems to meet those requirements but has anyone found if CTS will supply small quantities? Having said that I am told the CH pots appeared to work in the pedals ok for the older LWff. MikeT. -- If you want to email me then use this: MikeT at dsl dot pipex dot com

Just a stupid idea but, if the pot is only used on through a small part of its total rotation capability, isn't there a way to rotate it and use it through a new "'clean" portion of its track? Ed White a �crit :

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> Well, it was only a matter of time, but I need to replace the throttle pot > on my MOMO, it started acting up, so it got > pulled/opened/cleaned/lubed/re-assembled/-re-installed, and it seems to be > working fine now, but there was evidence of wear at the points that the > metal fingers sweep on the surface that the wires are connected to. The pots > say 10-30K on the case, have 3 wires attached, and the shaft is half cutaway > where it enters the pedal itself. Has anyone had any success finding a > replacement yet? It appears that the throttle and brake are the same pot, I > asked over on the Wingman board if they were available from Logitech, I was > told that they are not, and was also told that the new optical pots from the > new version MOMO would not be a direct replacement either. Wheel is working > fine for now, but the clock is ticking.....Any ideas out there? > Ed

"jld" <[email hidden]> wrote in message news:[email hidden]... > Just a stupid idea but, if the pot is only used on through a small partof its > total rotation capability, isn't there a way to rotate it and use itthrough a > new "'clean" portion of its track? > No. It rotates 300 deg mechanically, but only 50 deg electrically. They call it effective rotation, the era of the pot where rotation has an electrical effect. If you move it past these 50 degrees, the input from that pedal would probably be either at min or max no matter if you pressed the pedal or not. Jone.

Ed, I haven't seen the Momo-pedals inside yet, but... A nice trick on the LWFF pedals was to exchange throttle and brake pot. The slider was then operating on a fresh layer of whatever-wears-out-there. This will double your pots lifespan, if they are not damaged by your spraying. HTH Jens On Thu, 28 Nov 2002 13:08:34 GMT, "Ed White" <[email hidden]> wrote: >Jone, one of the things I noticed while I had the pedals apart, was that >Logi was only using a small part of the pots actual rotation.....they may >well have been 300 degree rotation, but as the shaft of the pot is inserted<snip> --------------------------------------------- LWFF Ball Bearing conversion at: http://jensschumi.bravepages.com/ GPLRank: -14.82 Monsters of GPL: sub 95

In article <[email hidden]>, [email hidden] says... > >Ed, >I haven't seen the Momo-pedals inside yet, but... >A nice trick on the LWFF pedals was to exchange throttle and brake pot. The >slider was then operating on a fresh layer of whatever-wears-out-there. >This will double your pots lifespan, if they are not damaged by your spraying. I've made my own pedals, and wired them to the new momo wheel. What I've found is that you dont actually have to use the full rotation of a pot to get something up and running. Frankly, my pedals dont turn very much at all... maybe 10 or 20 degrees at the most, and with a normal pot, thats not a hell of a lot of change of resistance, but you can nevertheless calibrate it and run GPL fine. So if all else fails, just plug in a normal pot rather than try to hunt down the momo specials.