I get a clicking sound when i get on it..And I know its not the valves.... someone told me that it was dirty fuel injectors? It's like a tapping noise only dose it when u push it more than normal
hmm, from the motor you say...nothing is loose is it? Do a good once over of the motor, top and bottom and just make sure. That's all I can think of, I have a mystery problem myself, I know how you feel.