Outcast Problem with the 16t pinion gear

[shingo]

Hi, I just tried to install the 16t pinion and it was a disaster. I was able to install it but I was not able to screw in the lock nut.

I was able to screw it a bit but at some point it just got stuck about 3/4 way in. It was not making contact with the motor shaft.
At this point the hex just stripped and now the lock screw is completely stuck

The only thing I can think of is maybe there was some defect in the thread of the gear.

I need to buy another one, any recommendation on brand?

 

[crimsonfancy]

Maybe check Robinson Racing. I know they make hardened steel pinions.
If I had to guess, the threadlock used at the factory was jamming the threads. I usually burn off the threadlock and soak parts in brake cleaner. They use red threadlock and it's usually a female dog to deal with. Good thing is that it works...just almost too well.

 

[jondilly1974]

I’ve used Traxxas pinions too and haven’t had any issues ?

 

[amateurhour]

I’ve used Robinson Racing gears in the past with good luck. Tekno also makes hardened pinions and I like that they use a larger m5 set screw: https://www.amainhobbies.com/tekno-...-gear-w-5mm-bore-11t-tkr4171/p454501?v=211305

 

[jym73]

I use GoolRc motor pinions, great for the price. I would say it is the same quality than Arrma motor pinions.

You also can surely use the arrma warranty to get a new pinion from them.

 

[Crewchief227]

First choice is Robinson Racing extra hard pinion, but lately I've been running tekno pinions & they're really nice. Mesh really smooth with the Arrma Spur, which tend to be cut quite shallow give it that classic "Arrma Chug". Plus the tekno uses an M4 locknut (yes a 2.5mm hex), which really allow for confident torquing, without worrying about stripping.?

 

[jym73]

Sure, Robinson motor pinions are high quality compared to the stock arrma pinion. But for bashing, i don't mind to have lower quality.

 

[shingo]

I went to my LHS and we just re tap the thread, it was really badly done near the shaft

 

[shingo]

Now I have overheating problem lol, but that's a different issue hehe

 

[jondilly1974]

What is overheating? ESC, motor, battery, is all of the above?

 

[jym73]

The 16T motor pinion isn't really advised for off-road use or during a too long time of run.

 

[shingo]

What is overheating? ESC, motor, battery, is all of the above?

Motor only, I already ordered a YA-0261BK dual fan

ESC was at 134F motor at 185F and battery at 95F

I did run a 4S pack just before running the 6S, without enough cool down

I will try with the fan and a minimum of 20 minutes cool down between run.

If it's still too high, I will try with a 14T pinion

Also I just re-check my gear mesh and it was too tight, so it also contributed to the heat.

 

[jondilly1974]

Motor only, I already ordered a YA-0261BK dual fan

ESC was at 134F motor at 185F and battery at 95F

I did run a 4S pack just before running the 6S, without enough cool down

I will try with the fan and a minimum of 20 minutes cool down between run.

If it's still too high, I will try with a 14T pinion

Also I just re-check my gear mesh and it was too tight, so it also contributed to the heat.

I would think some motor fans will take care of your motor issues and you should be fine going forward. Just make sure to check your fans each run as they may get damaged, leading to high temp damage potential. ??

 

[shingo]

I would think some motor fans will take care of your motor issues and you should be fine going forward. Just make sure to check your fans each run as they may get damaged, leading to high temp damage potential. ??

Yeah, I already saw some modification that can be done with epoxy on the fan to make them more bash resistent