Hope someone can help this newby. I'm building an Avistar Monokote with an OS 40LA engine. My current problem is that the engine does not seem to fit the supplied mount. It looks like I just install the engine using some supplied brackets that hold on to the engine mount by screwing them tight (no way to align the engine). This seems foreign to me. Shouldn't the mount have screws that fit through the enging bracket and then into the engine mount?