Hi Again, Another thing to remember is that all those little pieces of timing gear (and old valve seals) eventually end up in the oil pump pickup. While the screen keeps them from coming through, they slow oil flow down considerably. If I was buying a car with an original engine, I would change the timing set and drop the pan to check things out. 300ly, Don ----- Original Message ----- From: Don Verity <d.verity@xxxx> To: <Chrysler300@xxxxxxxxxxxxxxx>; <john_nowosacki@xxxx> Sent: Thursday, June 27, 2002 9:28 AM Subject: Re: [Chrysler300] FW: Plastic Cam Gears > Hi John and All, > The gear in question is not actually plastic. Original gears on big blocks > dating back to the mid sixties had the gear teeth molded from a plastic like > compound. It was done to quiet things down. Some lasted a long time. I > replaced the timing chain and gears on my 69 440 with 84,000 miles and the > gear was fine. I've done others where there were almost no teeth left! An > easy way to check is to line up the mark on the damper, and turn the > crankshaft back and forth until you feel the resistance of the cam. You > should have no more than 1/2 inch play. Works for all types of timing chains > set-ups. It's still cheap maintenance for the peace of mind. > 300ly, > Don