Loud clicking on stop losi lasernut

Welcome to RCTalk

Come join other RC enthusiasts! You'll be able to discuss, share and private message with other members of our community.

katonc

RC Newbie
Messages
8
Reaction score
0
So I just installed teckno driveshafts in the rear dif. Since then. When I drive and then stop there is a loud click. What might cause this? I assume something locking in place?
Also I think I have grinding in the center dif. Might be worn down like many lasernuts. Any help on the loud click on stop would be appreciated.
Loud click- video here
 

katonc

RC Newbie
Messages
8
Reaction score
0
Realizing now. The loud click on stop isn’t coming through very well in the video.
 

Bogda89

RCNT Qualifier
Messages
138
Reaction score
86
It seems fine to me. Just drive it until you break it and then you return stock :)
 

katonc

RC Newbie
Messages
8
Reaction score
0
Haha I could. It’s just really driving me nuts how loud the click is when I break hard. Wasn’t there before.
Might need to take the rear dif apart.
 

Greywolf74

I'M TO BLAME!
Lifetime Supporter!
Supporter
Hospitality Award
Build Thread Contributor
Messages
13,902
Reaction score
6,482
Location
Ohio
RC Driving Style
  1. Bashing
I can't hear the click on the video. Everything that I see and hear in the video looks/sounds normal to me.
 

katonc

RC Newbie
Messages
8
Reaction score
0
Yeah maybe it’s ok. But it’s very loud and new. Tried to get the sound from the back. The click that happens on break is much louder in person.
Link to a new video here
 
Last edited:

katonc

RC Newbie
Messages
8
Reaction score
0
Ok. So I just removed the rear drive shafts to see if it made the sound with them out. And it doesn’t. So there is something about those shafts that click and lock hard when I stop hard. So I’m going to assume it’s ok and just the metal on metal there. It has new couplings and drive shafts. So I think I’m good?
 

WickedFog

Starter of too many projects
Supporter
Hospitality Award
Build Thread Contributor
Messages
8,577
Reaction score
9,962
Location
Terre Haute, IN
RC Driving Style
  1. Bashing
  2. Crawling
  3. Scale Builder
Ok. So I just removed the rear drive shafts to see if it made the sound with them out. And it doesn’t. So there is something about those shafts that click and lock hard when I stop hard. So I’m going to assume it’s ok and just the metal on metal there. It has new couplings and drive shafts. So I think I’m good?
Do you have any play in the driveshafts, like end-to-end play? What you can do is drop a small o-ring in the cup at the axle to keep the driveshaft from rattling. That may be what you have there.

I would also check your pinion grub screw and make sure it is seated on the flat of the motor shaft. If not it can slip on the shaft and it will make a very similar noise when starting and stopping. Not likely the case here though.
 

katonc

RC Newbie
Messages
8
Reaction score
0
Where exactly is the pinion I would check that on? That’s in the center gears right? I’ve never checked or messed with that before. So maybe it is it.

There isn’t a lot of play on the drive shafts. Very little actually, seems just like stock.
 

Greywolf74

I'M TO BLAME!
Lifetime Supporter!
Supporter
Hospitality Award
Build Thread Contributor
Messages
13,902
Reaction score
6,482
Location
Ohio
RC Driving Style
  1. Bashing
The pinion gear is the gear attached to the motor shaft.

As for the video, I hear what you're talking about but I can't say what that might be or if its even a real problem. If it just started happening with the installation of the new drive shafts its most likely a sound being made by them somehow. Were any other changes made besides the shafts when you started hearing this?
 

katonc

RC Newbie
Messages
8
Reaction score
0
The pinion gear is the gear attached to the motor shaft.

As for the video, I hear what you're talking about but I can't say what that might be or if its even a real problem. If it just started happening with the installation of the new drive shafts its most likely a sound being made by them somehow. Were any other changes made besides the shafts when you started hearing this?
I did have to replace the differential outdrives back there. Maybe those are causing the sound. The sound does stop when I remove the shafts but then those wouldn’t be putting pressure on the outdrives.
 

Donnie533

RCNT Member
Messages
28
Reaction score
19
Location
Calgary, Alberta, Canada
RC Driving Style
  1. Bashing
  2. Racing
  3. Crawling
  4. Boating
It sounds to me like something is wrong in the diff - like gears are not meshing properly. I don't have a Lasernut, so not familiar with the rear diff. But I would check the pinion to ring gear set-up. Or inside the diff, are the spider gears in place properly, or is the diff case not seated in place properly allowing the gear to slip past each other. With the axles removed, you do not have the weight / torque of the wheels against the drivetrain.
 

katonc

RC Newbie
Messages
8
Reaction score
0
It sounds to me like something is wrong in the diff - like gears are not meshing properly. I don't have a Lasernut, so not familiar with the rear diff. But I would check the pinion to ring gear set-up. Or inside the diff, are the spider gears in place properly, or is the diff case not seated in place properly allowing the gear to slip past each other. With the axles removed, you do not have the weight / torque of the wheels against the drivetrain.
Yeah. I’ll take it apart and look. Was avoiding it but probably should.
 
Top