Hey guys, I have a glanza, when its cold and underload, their is a screetching and tapping noise thats getting worse and worse, it used to only do this when it was cold but now its almost all the time, its fine if your gentle with the throttle but going up a hill or going quick it taps and screeches, almost like a fanbelt noise, it sounds like its coming from the top of the engine but when you listen close is from the bottom, i dont know wether to strip it down and get new parts, get a whole engine or to swap the interinals with another block? any ideas? ive only had it for a month!