One thing you don't want is a improper mount for your motor.Your firewall must have been damaged or the mount itself? Anyway your motor should not be pointed left or right unless you are flying control lines that need to stay tight which takes right rudder and at times some outward tilt of the motor but, very little is required.Your motor should be inline with the fuselage a straight edge off the lower part of the wing and a square off that to the prop should get you close? Maybe run a string from rudder to center of firewall and beyond to nosecone point for left and right setting.Check mount for cracks or bends!Good luck