Adjust Differential?

[lnfjn]

Hi, I'm new to Dnanos. I bought a Enzo Ferrari and a Lamborghini Murcielago. I drove the Enzo on the Hobbytown Corona track. It was a blast! I was into Mini-Z's about 4 years ago and then got busy. I thought the Mini-Z's were great but these cars are really more refined in their design.
I'm having a slight problem with the Lamborghini Murcielago. One rear wheel is slipping causing the car to pull. I looked at the technical manual and it's not very clear on how the differential is made on the standard Dnano. Is there a way to tighten it up?

[Pierro]

Hello!

The standart diff is a gear dif. So, the same as on the mini-z. It can perhaps need a little practice to free up a little bit. Or you can even try to some lube to help (but be carefull for the dust that will come).
Personnaly I went to the ball dif after a few runs and really love it much than the gear dif.

Hope you enjoy your new rides.

[lornecherry]

...agree with the poster above ...the stock diff will loosen up after a while, but the ball diff is adjustable for a variety of surfaces and is much smoother.

That said, if the car originally ran straight and now pulls, it may be that the front wheels are not turning freely, thus causing the car to pull to one side. Spin the fronts with your hand and see if they both turn very freely. If one turns slower, then that is your problem and not the diff; you'll need to take the front axle off and clean out the debris wound around it ...this is by far the most common cause of left or right "pulling". Hope you like working really tiny screws

[lnfjn]

Actually, my problem is opposite from what everyone is thinking. The differential is not too tight but it's too loose. When holding the car upside down only one rear wheel (the sprocket side) is spinning. There doesn't seemed to be a way to tighten it up. It was this way out of the box.

[Pierro]

Hello!

Unfortunately I don't know what you means by sprocket side...

But if this means the wheel on the dif side, perhaps is it a binding of the axle in the pod. Check the plastic bushings to see if it's well free.

I believe the pod bearings are the same size as wheel bearings of mini-z, so you can also try with some bearings.

[edhchoe]

I'd make sure the screw is tight on the hub carrier of the loose side. If it is loose the axle will spin freely.

[MrNanoTrax]

the stock differential is loose out of the box. its horrible and that's probably intentional. forget the stock diff, pick up a ball diff & call it a day