Well...I Broke My Arrma Mojave Grom...

[PewPewChris]

Other than a few small suspension parts I've been clear of any engine/mechanical issues. I've had the grom less than a few days and already knocked something internal loose. Power works, servo works...motor just whine's when acceleration is given, zero-wheel spin.

Thoughts before a noob starts taking it apart?

 

[DavidB1126]

Pinion gear slipped off the shaft, or a chewed/stripped pinion or spur gear which those are most likely the issue.

 

[Lukedavis]

Other than a few small suspension parts I've been clear of any engine/mechanical issues. I've had the grom less than a few days and already knocked something internal loose. Power works, servo works...motor just whine's when acceleration is given, zero-wheel spin.

Thoughts before a noob starts taking it apart?

you could have shredded the pinion. take a look and see if when you hit the power the car tries to move at all or rotate each tire while holding the other and if it spins easier than usual, you might have stripped the internal plastic gears of the diffs. your pinion also could have come loose.

Pinion gear slipped off the shaft, or a chewed/stripped pinion or spur gear which those are most likely the issue.

Yeah, I'm thinking the pinion came loose. The pinion and spur in the groms are metal.

 

[PewPewChris]

I'll have to do my noob research on how to get it apart before I start wrenching on it. Thanks for pointing me in the right direction. I

 

[Hammer Down]

Diffs are stripped.

 

[Lukedavis]

Diffs are stripped.

I thought that too, but his pinion seems loose because he said it has a small whine under power without any car movement. I stripped 4 stock diffs in my Mojave Grom. I currently have 2 being warrentied

 

[PewPewChris]

I'll have to report back tomorrow, no time this eve to take a look. I also jacked up my Teton after dinner...it runs, just a little clicking in the front in, jarred something loose I'm sure...when it rains, it pours...

 

[WickedFog]

First thing with any RTR - Check the gear mesh and adjust. It's never right.

 

[luke66]

Diffs.

 

[majin]

Other than a few small suspension parts I've been clear of any engine/mechanical issues. I've had the grom less than a few days and already knocked something internal loose. Power works, servo works...motor just whine's when acceleration is given, zero-wheel spin.

Thoughts before a noob starts taking it apart?

i have a few different thoughts than the rest of the crew....
friking awesomeness!! i bet you were having a blast when it stripped tho. ripping it. i love hard bashing, if i dont break something i wasn't goin hard enough lolol
what happened to the teton? i have thought about one of those for my son but I'm aleays scared to buy a new one cause i want so many lolol

 

[Chubaka]

Other than a few small suspension parts I've been clear of any engine/mechanical issues. I've had the grom less than a few days and already knocked something internal loose. Power works, servo works...motor just whine's when acceleration is given, zero-wheel spin.

Thoughts before a noob starts taking it apart?

Folow the spin. If the motor spins but not a driveshaft check thd tranny. If ot all spins but not the wheel, start at the wheel.

 

[PewPewChris]

i have a few different thoughts than the rest of the crew....
friking awesomeness!! i bet you were having a blast when it stripped tho. ripping it. i love hard bashing, if i dont break something i wasn't goin hard enough lolol
what happened to the teton? i have thought about one of those for my son but I'm aleays scared to buy a new one cause i want so many lolol

teton drives, all 4 wheels work, there is a clicking sound as they turn...hard to tell if the sound is coming from front/rear or both

 

[Finesavageboy2]

most likely the diff...

 

[luke66]

Yes. DIFFS! I've killed 5 diffs already. Go buy some metal diffs and never look back.

 

[Chubaka]

Yes. DIFFS! I've killed 5 diffs already. Go buy some metal diffs and never look back.

Are you saying they are diff-erent?

 

[luke66]

No, that's the problem.

 

[PewPewChris]

I figured out the noise on the Teton, there was a pebble or something that found it's way into one of the spur gear teeth.

But, the awesome part is I put a batter in and tested it before I put it all back together, and noise was gone, all 4 wheels spun...get it all put back together, front wheels no longer spinning...I guess the shaft disengaged from the front...so gotta take it all back apart to figure that out

 

[PewPewChris]

Yup, shaft became disengaged...now my front-end is in pieces and four additional little pinions appeared as if by magic lol

I had to take a step back and will need to look at a YouTube and/or manual to get it back together. It's fun though, just can't allow myself to get to the point of raging frustration lol

 

[PewPewChris]

Yeah...gonna need a little help from you peeps...

Current status of my Teton...

I can't seem to figure out or find a diagram for what the hell these (4) smaller pinions are for and where they go...

 

[Lukedavis]

Yeah...gonna need a little help from you peeps...

Current status of my Teton...

View attachment 202438
View attachment 202439
I can't seem to figure out or find a diagram for what the hell these (4) smaller pinions are for and where they go...
View attachment 202440

My guess is internal diff gears