Timing gear question
I use to own a 1987 Pontiac GA, V-6 3.0. On one very cold day, like -30F, my GA would not warm up on a local trip to the store (12 miles) So after shopping, I figured I would rev the engine to a steady 2500RPM to make it warm up before heading out. Not 30 seconds later, I heard this terrible knocking, and then the engine died. Long story short, timing gear(cam shaft) stripped because plastic got cold. While the engine was still spinning at 2500RPM UNTIMED, pistons started slapping valves, valves started bending pushrods, pushrods started collapsing hyd. lifters. It was total meyhem.
Now, correct me if I am wrong, Buick makes motors for what, almost the whole pontiac line of cars? So, if and when did buick stop using plastic timing gears in their motors? What is the timing gear made out of in the 1995 Pontiac Bonneville 3.8 SE?
Considering that my Bonnie has 169800 miles on it. I don't want another episode of a major breakdown.
Thanks for any help
1995 Bonneville V-6 3.8 SE, 185deg thermostat, everything else is stock.
2002 Dodge Neon Bleh.