Originally Posted by
NitroJunkie269
alright I've bought the 3.3 got it at a decent price brand new of course at a hobby shop , I got the one with the pull starter..the pull starter is good but the piston is catching on something at the top..the piston goes to the top and gets stuck and won't move at all what do I do? its brand new , hasn't eveb had a drop of nitro yet.
Stop pulling it over slowly! The piston fit is tight because it has no piston rings. Put some light oil in the cylinder so the piston doesn't get scratched and leave it alone until you're ready to bolt it into the car.
You will find out that the 3.3 is a lot of engine for a stampede. I'd recommend breaking in on a 20t clutchbell and 70t spur gear and then when the engine has a half gallon of fuel through it, gear it up to a 22t clutch and 68t spur or so. Otherwise it'll spend much time upside down.