R/C truck

[bignose]

I was racing the truck around today and the same thing happened last time. It stopped running and I couldn't start it again. Changed the glow plug and cleaned the engine of excess fuel because I thought I flooded it and it still didn't start. Not sure whats going on now.

[bullit67]

Well time for me to chime in if it starts and runs fine till it warms up I hate to tell you this but the engine needs a rebuild ( piston and sleeve ) in a nitro engine there are no rings they have a tapered sleeve so as the piston travles to the top the sleeve pinches the piston to create compression. Soooo when the engine gets hot the sleeve expands and looses its pinch which equals no compression. there are a few things that can cause this like leaving the piston at TDC ( top dead center ) when the engine is hot as the engine cools the piston streaches the sleeve this is a big killer of nitro engines. The other big no no is improper brake in of the new engine I dont know how many times i would see a guy buy a new nitro truck on fri. and see him back in the store on Sat. " how come it wont run" It could also be just plan worn out . But hey dont panic it is a traxxas after all any hobby shop that carries RC should have parts for it and a piston and sleeve is not that expensive. Dont bother with the engine exchange program by the time you get it here it will cost more then just buying one from you LHS (local hobby shop)

Hope this helps