I am a noob to these cars and I bought one a few months ago and the timing belt on it I just noticed is loose, it has a lot of slack on it. If I push down on the timing belt between the 2 cams, it can go down probably...3cm or so, but the car still drives fine so I am assuming it is still in time. Is there a way I can just tighten the timing belt without having to replace things? BTW the motor is completely stock and only has 58k on it.