B4.1 Problem any ideas anyone? (Weird Noise)

[Tempest501]

Hi,

I have had my B4.1 for a couple of weeks now and I have taken it out twice. no major incidents but I seem to have developed a granching type noise at low speeds which Im pretty sure it was silent at slow speeds on my first run out (apart from the r2d2 tweets from the motor =D).

I am new to R/C stuff so I have not really any experience with stripping/building so just wanted some advice.

I took all the wheels off to make and check they were on ok and check all the ball cups. When i put it back together I still had the noise. I am at a loss at to what to do next so was hoping someone could give me some advice.

It still seems to run ok but just doesnt sound healthy , going to be gutted if I managed to break it in 2 runs =C.

Also wanted to ask if its normal to have a little wheel wobble in front wheels, if I freeroll them with my hands there is a slight wobble on the wheels. I made sure they were tight on so its not loose.

Thanks in advance for your help.