Does a 1989 Oldsmobile ninety eight 3800 series engine have a plastic timing gear?

Yes, the 1989 Oldsmobile Ninety-Eight equipped with the 3.8L (3800 Series) engine typically has a plastic timing gear. This design was common in many GM engines of that era, which used plastic timing gears to reduce noise and weight. However, it's important to note that over time, these plastic gears can wear out or degrade, potentially leading to timing issues. Regular maintenance checks are advisable for older vehicles.