Hi Scotty. I have a 1990 Oldsmobile Cutlass Ciera with the 2.5L 4 cylinder engine and 357,000 miles on it. It has been in the family since it was a new car, and we never had any problems with the engine or transmission. So finally, I was driving along and the engine just shut off and wouldn't restart. I determined the camshaft gear stripped on it. This engine does not have a timing chain or belt, it has directly meshed gears on it. The cam gear is some kind of fiber material, and the crank gear is steel. I'm sure you have worked on these engines. I want to replace the cam gear, but this is located in a very difficult spot, up against the strut tower. I was able to get all the accessories off and the timing cover off. It appears like you have to pull the engine out to do this, and the cam gear is pressed on to the camshaft, so you might have to remove the camshaft to get the gear off and back on. My question is, is there a way to do this without removing the engine, and without removing the camshaft? Also, I can get an aluminum camshaft gear instead of this phenolic kind - but I don't know if that is a good idea or not. Which would you use? The original certainly lasted long enough. I know this is ridiculously high mileage, but this has been the best car I've ever owned, so I wan to fix it. Thanks.
OK. Thanks a lot, Scotty!
generally it's a lot worse than just a bad gear, entire engine would need rebuilding for it to be safe and last. It's just not worth that. But if you want, use the metal gear