car dogs around

[2x_treem]

i have a nitro sport and it started loosing power the motor picks up in rpms but the car dont move.
the clutch is new and i opened the rear end thinking it was the planetary gear and that was in excelent shape and the universals have just been replaced. i cant think of nothing else that would cause the car to not move. can anyone help me?

[Yippy_Skippy]

Have you checked your out put yokes... Sometimes the grub screws come loose or get stripped.. Try to tighten them up.. If they will not tighten up then you will need a new set of yokes...

Also if your truck has a slipper clutch check the tightness on the slipper.. It may be set too loose

Also are your tires glued to the rims.. If not the rims will spin inside the tires causing the truck to accelerate slowly

Hope some of these help you

Shawn

[Toyotar]

Maybe your needle is set too rich? I doubt this is the case, though, because the engine revs up in rpms, you say. I dunno what the problem could be if you've checked all the stuff Yippy said and checked your needle adjustment. :confused:

Colin

[tb_racer]

colin stand behind your suggestions they are good ones...that very well could be the problem..;)

[2x_treem]

the tires are glued and tight and the yokes are tight i just checked those. i took the truck to the hobby shop earlier today and it has them puzzled also. the slipper is 2 1/4 turns loose. im sure it probaly something that i had overlooked and that ill kick myself for it later.

[topkart23]

could be too lean (the engine is not getting enough fuel)

[nsport]

hey my truck did the same thing. i would even by driving along sometimes and it would just lock up my rear tires and start reving up. what mine ended up being was small debries such as gravel or other little objects that were wedjed in the teath of my spur and bell gear. even if you cant see any which i couldn't on mine either go through them with a flathead or a pointed object of some kind and s****e inbetween every tooth. i know it sounds tedious but it don't take but two minutes.

[nsport]

why did they star out "s****e" would they rather scratch. i guess it'll probably do it again so ill do it this way. s c r a p e

[Toyotar]

Apparently, they don't want us to say c r a p, even though it can be said on primetime television... :o

Colin

[Yippy_Skippy]

2x_treem quote: the slipper is 2 1/4 turns loose

If thats how loose your slipper clutch is.. Thats way too loose.. It should be set at 1/4 to 1/2 turns

To check the adjustment, hold the model so that the driving wheels cannot turn. With the drive wheels locked, push on the spur gear with your thumb. It should be difficult, but not impossible to move the spur gear. If the spur gear moves easily, then tighten the adjusting nut and retest.



http://www.traxxas.com/support/troubleshooting/expanded/imgs/tp0021.jpg

[cjlandry]

Another thing:

If you've run your slipper clutch this loose for very long, you've probably melted the clutch pins (the little rubber things in the spur gear holes). If they got too hot, they may have partially melted the spur gear as well, in which case you'll have to order another set of the pins and a spur gear.

[2x_treem]

ok now that im looking at that pic i see that that truck has a slipper clutch,mine dosent,where the pegs are in the spur my retainers or what ever they are called are two flat pieces of plastic one on each side screwed together and thats held on by a nut. any way with the advide that yippy_skippy said i am able to turn the spur about 1/4 of a turn with oput the wheeles moveing.

kevin