i have used the heat cycle method to break in my Axial 28 spec2s. and now with the glowplug out i can turn it with my hands and it feels very smooth with the plug in it is also possible to turn with my hands it gets harder as the piston reaches the top when i take the plug out again and turn it it gets stuck at the top why??????
Your engine still has mechanical pinch to it. Sounds pretty normal to me. It should still be semi difficult to turn over, even with the plug out..depending on how much fuel you have run through it thus far.
its real easy to pull with the pull start with the plug out and it doesn't pinch. It gets stuck at top about every 3 turns with the plug out when turned with one finger. When the glow plug is in it is very hard to turn by hand but possible and gets stuck at top every other turn
With plug out there is no resistance untill it pinches it takes no effort to turn by hand