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Old 06-24-2009, 06:21 AM   #16666
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Ive got the same problem at the moment. I think the spur gear holder is a bit warped coz no matter how i do up the spur it always wobbles. Not 100% sure as i dont have another spare holder.
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Old 06-24-2009, 06:39 AM   #16667
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Originally Posted by k_bojar View Post
hey guys...has anyone even had the spur gear wobble??

I've in the process of rebuilding mine, and when I spin the spur gear it looks like the gear is warped and its kinda bugging me..
  • I've checked spacing with the one pulley - to make sure its not an optical illusion
  • I've spun the gear when its not screwed on, still have a wobble
  • spun it with the gear lightly tighten down, still have it
  • Moved the spur gear 'mount' around on that center 'flat spot' - just to make sure I had it fully seated
  • Used an 'official' HB supr, PRS spurs, kimborough...the only one I got with just about no wobble was some crappy brand spurs - that I didn't like using...

any ideas???? I'm stumped - the car is drivable, it just bugging me that I can't get it to spin true
Hi,

I recently purchased a HB Cyclone TC and had exact same problem.

I was using a Kimborough spur which can only use two Spur mounting screws.

I purchased a Xenon Spur which allows all 4 screws to mount the Spur, and problem solved.

Cheers
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Old 06-24-2009, 08:33 AM   #16668
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Default Setup Trouble

Is there any guide on how to setup the Cyclone TC ?

I'm new at Electric On-Road cars and having real trouble finding the right setup for my car. I was hoping if you guys can direct me to a guide that explains to me the trick to setup my car for any track.

Thanks
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Old 06-24-2009, 11:29 AM   #16669
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Quote:
Originally Posted by k_bojar View Post
hey guys...has anyone even had the spur gear wobble??

I've in the process of rebuilding mine, and when I spin the spur gear it looks like the gear is warped and its kinda bugging me..
  • I've checked spacing with the one pulley - to make sure its not an optical illusion
  • I've spun the gear when its not screwed on, still have a wobble
  • spun it with the gear lightly tighten down, still have it
  • Moved the spur gear 'mount' around on that center 'flat spot' - just to make sure I had it fully seated
  • Used an 'official' HB supr, PRS spurs, kimborough...the only one I got with just about no wobble was some crappy brand spurs - that I didn't like using...

any ideas???? I'm stumped - the car is drivable, it just bugging me that I can't get it to spin true
If you overtighten either screw mount even slightly, the gear warps and it's done.

Here are the steps that I follow to get it pretty true:
- Make sure that you're using a new gear that allows all 4 scews to be used, such as the HB spurs.
- Put some blue threadlock into the screw holes on the spur gear mount. It will allow you to use less tension when tightening the scews, and it will still hold on.
- Put on the gear and thread in the screws.
- You'll want to tighten them lightly in a cross pattern, using only your thumb and forefinger on the wrench (don't use the 1/8 scale engine screw grip).
- Spin the layshaft/spur assembly to check for wobbles (get the belts and pinion out of the way first)
- If it spins true, give all 4 screws about a 1/16 of a turn to snug it up and you're good to go. Otherwise, if it wobbles, only tighten the high spot a little to bring it in-line with the rest of the gear and spin again... repeating until it runs true. If you find you have to tighten down one side a lot, loosen off the opposite side a little.

Hope that helps.
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Old 06-24-2009, 01:07 PM   #16670
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Quote:
Originally Posted by k_bojar View Post
hey guys...has anyone even had the spur gear wobble??

I've in the process of rebuilding mine, and when I spin the spur gear it looks like the gear is warped and its kinda bugging me..
  • I've checked spacing with the one pulley - to make sure its not an optical illusion
  • I've spun the gear when its not screwed on, still have a wobble
  • spun it with the gear lightly tighten down, still have it
  • Moved the spur gear 'mount' around on that center 'flat spot' - just to make sure I had it fully seated
  • Used an 'official' HB supr, PRS spurs, kimborough...the only one I got with just about no wobble was some crappy brand spurs - that I didn't like using...

any ideas???? I'm stumped - the car is drivable, it just bugging me that I can't get it to spin true
I used 2 set screws on the spur gear holder (opposite) for mounted on the shaft to solve mine's.
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Old 06-24-2009, 04:54 PM   #16671
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Something else to try is rotate the spur gear on the mount to try a different set of holes. Sometimes the holes may look close, but they are not. A way you can tell is just use the shaft of your allen driver to tighten then screws. If you feel any resistance from the spur gear, then they are the wrong holes. they should thread in with ease.

-Korey
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Old 06-24-2009, 07:13 PM   #16672
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thanks for all the suggestions...i've tried them all

the PRS spur was old and new - and that's a 2-screw spur..i'd deem it the 2nd least wobbly of the group
I think tried a HB (xenon) spur, with both 2 screw and 4 screws...plus the lock tight and tighten down in star/cross pattern - still wobbly..

this is why i'm stumped...

I wish parts were available at other shops aside from HPI/Hotbodiesonline
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Old 06-24-2009, 07:17 PM   #16673
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Quote:
Originally Posted by rc pete View Post
- Spin the layshaft/spur assembly to check for wobbles (get the belts and pinion out of the way first)
- If it spins true, give all 4 screws about a 1/16 of a turn to snug it up and you're good to go. Otherwise, if it wobbles, only tighten the high spot a little to bring it in-line with the rest of the gear and spin again... repeating until it runs true. If you find you have to tighten down one side a lot, loosen off the opposite side a little.

Hope that helps.
I guess i didn't have enough patience to try this the last nite - i tried everything else i know, but didn't go this slow

guess i'll have to give this a shot
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Old 06-25-2009, 07:51 AM   #16674
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DCJ
angle bigger than XRAY & MIP
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Old 06-25-2009, 05:30 PM   #16675
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DCJ
angle bigger than XRAY & MIP
What do you mean?
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Old 06-26-2009, 01:10 AM   #16676
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hi, anyone know if cyclone S steering post can use on Cyclone TC ?

thanks
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Old 06-26-2009, 03:33 AM   #16677
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What do you mean?
the turning angle of cvd is bigger...
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Old 06-26-2009, 08:29 AM   #16678
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Originally Posted by fly_wheel View Post
the turning angle of cvd is bigger...
If you need more turning angle then CVD you have much bigger problems.

In a single joint there is acceleration as it turns, with two joints much of this cancels so the rotational speed is more constant. That speed change in the joint is what causes chatter in a CVD.
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Old 06-26-2009, 01:26 PM   #16679
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Anybody have any issues with the 18T center pulley ? My son recently installed this into his Cyclone S and it seems as if the set screw came out and the threads in the center pulley are now stripped and now I have to find a new center pulley Not easy to find, finally found one at Stormer Hobbies Any way to re-use the previous one ? Thx.
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Old 06-26-2009, 01:39 PM   #16680
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Originally Posted by Pit_dad View Post
Anybody have any issues with the 18T center pulley ? My son recently installed this into his Cyclone S and it seems as if the set screw came out and the threads in the center pulley are now stripped and now I have to find a new center pulley Not easy to find, finally found one at Stormer Hobbies Any way to re-use the previous one ? Thx.
You could use a tap to re-tap the original hole slightly bigger and use the new set screw since you know the size you use for the tap. Metric size is little hard to find.
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