olit777

hi I have got an acme condor pro nitro buggy which I have managed to get running but won't go anywhere I have put a new aluminium clutch in and still won't go anywhere I have tightened all the grub screws on the drive shaft joints and stripped everything down and rebuilt it tightening everything as I went and still no luck the bell housing is moving and it is moving both gears but the car will not move it just revs up but if I turn the car off and move the bell housing by hand it moves the gears and the wheels move so it makes no sense to me it's like as soon as the engine is running it's turing the gears but no drive everything looks like it's working but obviously somthing is wrong maybe gearbox slipper clutch? I loosened it and it drives but takes off strait away on start up and really struggles to start so that can't be right but I think it must have somthing to do with the slipper clutch any help would be great it's driving me mad and don't want to start buying loads of parts unless I can pin point the problem thank you for reading and ideas would be much appreciated