Designing a Tee Dee RC carb

A little off topic but I guess I read that during the .010 test it would seem to get stuck For no reason ???
Well let me give you a little trick to check the spacing between the back plate and the crankchaft pin and piston conecting rod The rear cover can sometimes pull out of the crankcase slightly without leaking more like deforming. Issue Sometimes the 4 holes of the crankcase screws form a deformation around the threads which seems to withdraw from the hole. It push the back cover away This increases the spacing between the cover and the connecting rod The reason why he gets stuck and Seem like hydro lock Inside the housing there is a channel sort of track the piston conecting rod run inside that litle track lets say If it is possible for her to get out, she will get stuck It's the back plate that must hold it back on its track It's easy to check, just to remove the cylinder, move the connecting rod to the rear on the tdc then turn the crank chaft if it stays on the path in the middle it's good but if it goes out of the way it will get stuck Me before using a cox engine whatever it is new or used before taking off this is part of the ferification before use after use and a engine Known correct I check all the same but I only point the prop up then I turn the propeller slowly se if ajustement is Need