Does anyone have any information on the life expectancy on the 2.0L suzuki engine's timing chain? I am debating on tearing into the engine to replace the chain/guides just at a preventative maintenance but I really don't feel like it. I am hesitant on what to do because I have not found much info on them failing. Right now the engine has 125,000 orig miles and to my knowledge has had regular oil changes since 60,000 miles which is when our family bought it. Any information would be great.