Schumacher Cougar KF - Noisy Transmission

[rhysmo]

Hi, just started racing a Cougar KF and it seems to be quite noisy.

I've checked the usual stuff and done a few rebuilds of the entire drivetrain, lubed the metal side gears, tried different spurs and pinions, different electrics (motor + esc). Checked motor is parallel to spur gear shaft, checked all fasteners multiple times, tried running tighter and looser mesh (can clearly hear when it is too tight).

Are they just a bit noisy or should it be silent running!?

I think it may just be the motor noise being amplified through the chassis as it is hard mounted in the middle of the carbon fibre lower chassis.

Not getting any 'bad' noises like crunching or whining from badly meshed gears or dirt in the drivetrain, just seems to be loud compared to other cars. Not seen another KF running yet so got nothing to compare it to.

Thanks!