Talion Pinion question from a beginner.

[Moirae]

So I jumped in head first with a talion exb and I bought an 18t arrma pinion to go with it. I took the stock pinion off and noticed that it has a D shape yet my 18t pinion doesn't. It's perfectly round in the middle. does this matter? Do I have to use a safe D pinion on my stock motor or will any pinion work as long as I put in 2 of those little grub screws?

I'm sure this is a dumb question but thanks in advance for taking the time out to help a beginner.

 

[hobo]

So I jumped in head first with a talion exb and I bought an 18t arrma pinion to go with it. I took the stock pinion off and noticed that it has a D shape yet my 18t pinion doesn't. It's perfectly round in the middle. does this matter? Do I have to use a safe D pinion on my stock motor or will any pinion work as long as I put in 2 of those little grub screws?

I'm sure this is a dumb question but thanks in advance for taking the time out to help a beginner.

your ok to use the 18t pinion dosen't have to be d safe

 

[Moirae]

your ok to use the 18t pinion dosen't have to be d safe

Thank you! good to know lol.

 

[Rcproponent]

Make sure to clean the threads with an alcohol wipe! Then use some loctite. Then wait the full 24 hour cure time otherwise you’ll lose a pinion haha. Happened to me tons of times

 

[Yas]

Make sure to clean the threads with an alcohol wipe! Then use some loctite. Then wait the full 24 hour cure time otherwise you’ll lose a pinion haha. Happened to me tons of times

^ This! Patience pays off - it really does take 24hr+. I wait for 2 days before I use my rigs if I've used thread lock on any of the screws going in to metal. It helps if you keep the RC in a warm room. New metal parts usually have a lot of cutting oil residue still left on them and thread lock won't adhere to it! I soak the pinion in brake/clutch cleaner and wipe down the motor shaft with it too, but you can use any degreaser

 

[Engineer]

^^^^^ all of that. Also as a beginner, if you haven’t already, invest in a set of good hex drivers like MIP for tightening and loosening the pinion grub screw - a set of 1.5, 2.0 and 2.5 mm will be sufficient for the fasteners used on the vehicle: https://www.miponline.com/MIP-Hex-Driver-Wrench-Set-Metric-3-1-5mm-2-0mm-and-2-5mm-9502?amp=1

Don’t use those crappy L wrenches that come with the kit.

 

[SrC]

^ This! Patience pays off - it really does take 24hr+. I wait for 2 days before I use my rigs if I've used thread lock on any of the screws going in to metal. It helps if you keep the RC in a warm room. New metal parts usually have a lot of cutting oil residue still left on them and thread lock won't adhere to it! I soak the pinion in brake/clutch cleaner and wipe down the motor shaft with it too, but you can use any degreaser

Good point about machining oil found on the fasteners.
I went to Loctite Blue 243. 242 is the standard blue TL. Same strength. 243 is oil safe/ workable. But cleaning them in solvent is always best. Especially with critical fasteners like Grub screws.

 

[hobo]

never cleaned mine with anything just rub it on a cloth in the hex wench put lock tight on and thats it

 

[Moirae]

Thanks for all the great tips. Though now I'm terrified I'm going to have a pinion fly out .

 

[Moirae]

LOL I've been here a year now and this was my first thread?!?!?! omg i feel 10x more knowledgeable now.

 

[joshludden]

LOL I've been here a year now and this was my first thread?!?!?! omg i feel 10x more knowledgeable now.

U ever get pinion thing worked out?

 

[Moirae]

U ever get pinion thing worked out?

YES!

Can't believe I'm a year in the hobby now and I have so many rigs. Never thought I would have fell this far down the rabbit hole