my spur gear keeps getting loose the bolt i keep tigting it completly really tight i have a tmaxx 3.3 nitro with dynamite .19 engine a metal spur gear

[WickedFog]

okay I will look for them
View attachment 176430
Isn’t this something like it would work?
can’t I just bring it there and see if they have something like it?

Yep. That's a nyloc.

Do you have calipers by chance?

 

[iamnotsmart]

Yep. That's a nyloc.

Do you have calipers by chance?

What size do you think I need

 

[WickedFog]

What size do you think I need

No idea. That's why I asked if you have calipers. With calipers you can measure the thread diameter and thread pitch to find out what size it is. Otherwise, you could use a thread gage to get the pitch.

Do you have a tape measure? Hold it up next to the threads and get me a pic.

 

[iamnotsmart]

threads of what and I will send a pic later when I get home

Yep. That's a nyloc.

Do you have calipers by chance?

I will see if I have calipers when I get home

 

[WickedFog]

Of the shaft coming out of the spur.

 

[iamnotsmart]

Of the shaft coming out of the spur.

Yeah the one that comes out the transmission correct?

Yeah the one that comes out the transmission correct?

Where the nut screws in

 

[WickedFog]

Yeah the one that comes out the transmission correct?

Where the nut screws in

Yeah, exactly.

 

[iamnotsmart]

Yeah, exactly.

I sent a pic earlier but I can send a better pic later

I sent a pic earlier but I can send a better pic later

The pic I sent u can kinda see it not rlly I can send a way better pic when I’m home

I sent a pic earlier but I can send a better pic later

The pic I sent u can kinda see it not rlly I can send a way better pic when I’m home

I should have calipers if not I can get some

I sent a pic earlier but I can send a better pic later

The pic I sent u can kinda see it not rlly I can send a way better pic when I’m home

I should have calipers if not I can get some

I just remember I have a another transmission I’m pretty sure it has a nut on the spur gear that should work because I just bought a new transmission

I sent a pic earlier but I can send a better pic later

The pic I sent u can kinda see it not rlly I can send a way better pic when I’m home

I should have calipers if not I can get some

I just remember I have a another transmission I’m pretty sure it has a nut on the spur gear that should work because I just bought a new transmission

I will check when I get home

 

[Lukedavis]

No idea. That's why I asked if you have calipers. With calipers you can measure the thread diameter and thread pitch to find out what size it is. Otherwise, you could use a thread gage to get the pitch.

Do you have a tape measure? Hold it up next to the threads and get me a pic.

I’m pretty sure that it is m4

 

[iamnotsmart]

I’m pretty sure that it is m4

M4-.7 ?​

 

[Lukedavis]

M4-.7 ?​

Yes

 

[iamnotsmart]

Yes

Ok I don’t think I need to get another one bc I have another transmission it’s the same one and I forgot I have the bolt from that one

 

[Lukedavis]

Ok I don’t think I need to get another one bc I have another transmission it’s the same one and I forgot I have the bolt from that one

okay

 

[BigBrownEye]

will try that i was like i dont have any nuts but that shoulkd work ill take it off the front tire ill try that probably still gonna get locktight

you and eye are in the same boat... lost mine years ago

 

[iamnotsmart]

you and eye are in the same boat... lost mine years ago

i had another nut from my other transmission and its working now lol just need to tune correctly lol

 

[Lukedavis]

i had another nut from my other transmission and its working now lol just need to tune correctly lol

Good!