I'm quite confused. Dinala ko na sa mekaniko yung sasakyan mga sir. He said that the belts are still good. What we replaced was a bearing. after nun, may sound pa din, he said that it could be the bearing of the alternator or the timing chain. so dinala namin sa tumitingin ng alternator, he said that it is impossible kasi hindi daw tunog bearing. what he did was to adjust the belt. pero meron pa din, so he and another mechanic concluded na parang sa timing chain nga daw nang gagaling yung sound. They quoted it at 6,000 including the labor. Papalitan daw yung timing chain and the lower and upper pulley. When i tried pressing the gas pedal naman kanina , wala namang sound. I need an advice po sana if timing chain na po kaya yung problem kasi it can get worst daw if yun nga ang problema at hindi naayos.