Rough Winding Noise

[Xtacy33]

I'm getting this noise from the Robinson spur and axial steel pinion when throttle runs between 20-50%. It's normal steel gear noise at all other ranges on the throttle. This rug is used but new to me and everything is in great shape (tore it down). I've adjusted the mesh 2x but still the same. It doesn't effect performance and there is never a slip or real grinding noise.
My only thought is that the 550 motor is causing some movement with the stock plastic motor mount. I've ordered an aluminum motor mount and replace when it comes.
I'll try to get a bid later with the sound but if anyone has any thoughts it would be much appreciated.
Thanks!

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[mikemcE]

I suspect it's the axial pinion. I run the RR setup and have gotten some "hard" but not "Extra hard" as RR specifies. I just hate 13.00 pinions.


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[Xtacy33]

Ok, so wait until it strips or sick it up and get an RR pinion now? Thanks for the advice.

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[mikemcE]

It probably will last, just get noisier, I ran across that by using the right teeth, but not hardness. It did hook eventually, but was quite noisy


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[Xtacy33]

Yeh makes you think something is wrong, just weird the way it gets louder at that middle throttle point. I'll get a quick vid up later in the hopes for a confirmed diagnoses

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[mikemcE]

Do you have another pinion ? Harmonics play a small roll , odd it's just in one range, unless it's the slipper loose. I run mine 90% tight


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[Xtacy33]

https://youtu.be/618tsVBozYA

What you think?

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[mikemcE]

I think it's fine, bit of a whine


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[Xtacy33]

Originally Posted by mikemcE

I think it's fine, bit of a whine


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Thanks, just didn't happen with my other 2 Robinson slippers on a wraith and yeti. Can't recall if both are Robinson pinions though, I know 1 definitely is. I appreciate all the help!

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[mikemcE]

Robinson has two different hard and extra hard $6. Vs $13. Here a shot, "absolute" is the cheaper


Second shot shows the edge differences
I tried to find a smaller pair, all I had was 1 each 11,12,14,15 ( dupes are in trucks)


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[mikemcE]

These are both 32p I'm running a super shafty trans in my Wraith with the slash RR the yeti was straight bolt in.

You've got the same ?


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[Xtacy33]

Bomber and yeti are straight bolt in slipper Wraith is RR internals and slipper.

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[Xtacy33]

I have to take a closer look at mine, doesn't look like the extra hard is in my other rides, just the absolute. Might take one of those pinions out and stick it in the bomber to give it a go this weekend. I'll let you know if that was the issue. I couldn't ask for better help, tx again!

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[mikemcE]

I was told long ago metal spurs aren't needed .... yeah !


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[Xtacy33]

So an update: I got an aluminum motor mount (went with STRC for price - have HR on yetis) and after changing it the extra high winding/vibrating noise went away. I believe the 550 motor was possibly vibrating the motor mount a tiny bit which caused the sound. Anyways it's cured! Overall it will probably sound better with a matching RR steel pinion but for now the axial will do.

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