Dave_x8

i have a problem somewhere... i start it up all is fine, i hold it and pull the trigger and all is fine, i put the car on the ground and it doesnt move!! any suggestions?? by the way im new at this...
thanks

nitrodude

iTrader: (8)

You need to be more especific. What car is it?

Dave_x8

its a gpx-4 i think, its 4wd, but atm its just rwd cos im tired of buyin a front belt everytime i take it out. if it helps the car came with a ferari enzo body

kreamUNO

ahah whyd you take it out? lol.

put it back.

Dave_x8

i think you mis understood, the car is 4wd, one belt for the front and one for the back(u would know that)
umm, the front one keeps snapping when im using the car, it used to still drive just the rear, but now it wont move far, it will move like not even walking speed, i go to give it the trigger and it just revs?
any ideas

kreamUNO

of course i wouldn't understand, well sorry for trying.

Dave_x8

i wasnt tryin to have a go at ya mate, thanks for tryin anyway

Michael P

iTrader: (6)

does the car look like this

Dave_x8

yep, thats the one, apart from the tires and filter, but yes

Michael P

iTrader: (6)

The problem you have is the front belt may be too tight

Dave_x8

i have no front belt on it, i was just running it around rwd the past few times i have used it, but now all of a sudden it wont drive the rear now. my mate reckons take the weels off and have a look at a grub screw or somethin, but i wouldnt know where to start...

Michael P

iTrader: (6)

Look at the rear pulley the one right behind the engine if there is no set screw (grub screw) that is the problem

Dave_x8

i had a look then, the pulley behind the motor, it seems to have a screw in it, man the hobby shop loves me, im down the like every week.
the belt is fairly frayed but that cant be it cos it still spins the wheels, aahhh. i dunno i wish i knew more about them, dont rack ur brain too much about it mate, but ur knowledge is appreciated..

aussies1129

iTrader: (74)

so your engine revs but nothing happens if I am correct do this,
go thru your system , first engine drives the clutch, clutch shoes are engaging properly(springs are not to stiff?), pinion to spurs are meshed correctly yes? spurs are driving the main rear shaft which is connected to your belt yes? rear belt is not to loose?? then after that could be your diff is stripped inside??? then after that and highly unlikely check you universals/dogbones. this should find your problem.
cheers.

aussies1129

iTrader: (74)

this is important if your grub screw is not there your main shaft will just spin and wont engage the rear diff.