I have this tt46 pro that I now learn is junk for heli's...anyways it looks like it never saw fuel but while turning it over by hand, even without the plug,at top dead center it seems like it is just barley hitting something...like it tries to stop but then goes by...I put in a new head gasket but it didnt help...
next problem...I have a TT50H...that the alum hub in front of the front bearing spins freely on the crank..arent you suppose to be able to turn the engine over by turning this?...mine just spins so freely that it wont overcome the compression...
where can I get info on how to tear down and replace the piston, rod, or crank for these engines? I am not sure how to get the rod off of the crank pin so as to pull the piston and rod.sleeve seems to be stuck(in the 50) because the 46 the sleeve comes right up easily.[]