ECX AMP MT Slipping Clutch

[MMarshRC]

So I've recently upgraded to a 2150kv Brushless motor, with an 80amp ESC. Evrything runs good and works perfect, except for the clutch. I have the hex nut maxed out in tightness, but yet it still slips. You cant punch the throttle without it slipping. But i can ease into top speed. Im really lost as to what I can do. The nut is maxxed out and still slipping.

Im running an Associate 48P 47T spur, and 13T 48P pinion gears.

 

[Tamyosho]

Can't help you but these numbers sound insane. Are you trying to pull a real car out of a ditch with so much torque?

 

[MMarshRC]

Can't help you but these numbers sound insane. Are you trying to pull a real car out of a ditch with so much torque?

LMAO no. Just love doing wheelies, before clutch slip it would pull a wheelie even when near top speed. Just can't keep it from slipping now.

 

[Real_sparky]

how old are the slipper pads?

 

[Ledged]

pick up a new slipper set for the spur, if its slipping and at full lock, then the pads are bad/melted and no longer provide its use.

 

[Ledged]

ya think I can wheelie with a 3000kv geared really low? I dont have room for speed.

 

[MMarshRC]

how old are the slipper pads?

Four or five runs

 

[Real_sparky]

Maybe its just the angle of the photo, but the slipper washers look like are riding on the plastic of the spur gear
Could be totally wrong so dont flame me

 

[MMarshRC]

ya think I can wheelie with a 3000kv geared really low? I dont have room for speed.

Always room for speed. I had grinded down the motor adjustment to set it back further to fit my pinon and motor

 

[MMarshRC]

ya think I can wheelie with a 3000kv geared really low? I dont have room for speed.

The ecx amp mt chassic is really light. Add a lipo and heavy brushless motor in the back and you'll carry the front end all day.

 

[MMarshRC]

Maybe its just the angle of the photo, but the slipper washers look like are riding on the plastic of the spur gear
Could be totally wrong so dont flame me

Nope metal clutch plate

 

[Real_sparky]

Slipper washers = clutch plate. There should be two, one behind and one in front right?

 

[MMarshRC]

Slipper washers = clutch plate. There should be two, one behind and one in front right?

Yea, it goes washer, pad, spur, pad washer, spring, nut.

 

[MMarshRC]

Slipper washers = clutch plate. There should be two, one behind and one in front right?

Like I said, it ran perfect for four or five runs, then after a little bit of curb jumping it gave out and wont grab no matter how tight the hex nut is.

 

[MMarshRC]

Ordered a new pad set, will keep you all updated!

 

[Tamyosho]

You could try reversing the washers / clutch plate (so the side that touches the pad is the one that used to be on the outside, could help if their are warped a bit.

 

[Real_sparky]

Was reading a thread on the Traxxas forum about drag cars. They were talking about how the pads won't hold the torque

"Running 3s so had the need to run the metal pads on the slipper. The fiber pads fully locked up couldn't hold the power because of prepped track and traction compound."

Maybe this is your issue?

 

[MMarshRC]

Was reading a thread on the Traxxas forum about drag cars. They were talking about how the pads won't hold the torque

"Running 3s so had the need to run the metal pads on the slipper. The fiber pads fully locked up couldn't hold the power because of prepped track and traction compound."

Maybe this is your issue?

I found the problem! The gear on the top shaft in the transmission had broken and the shaft completely hollowed the gear. Pictures below. But what you're saying I'm looking for a metal clutch setup that would work with the ecx top shaft and spur gears. Trying to find a way to put the traxxas setup on mine.

 

[Real_sparky]

Wow you still had the plastic gears in with that motor, surprised it last 4 or 5 runs. Metal gears should fix the issue. If yo do get the traxxas system to work let us know

 

[MMarshRC]

Wow you still had the plastic gears in with that motor, surprised it last 4 or 5 runs. Metal gears should fix the issue. If yo do get the traxxas system to work let us know

Will do! Thank you everyone for the help. The plastic gears held up for a while, the teeth themselves all look fine. Just stripped the holding point on the gear. Ill post pics if the newly installed gears when they arrive. Today im putting lights on the truck body.