Originally Posted by 39chevy
How much slack in a tc before it should be changed? Tia, Dana
Like most have stated if it's apart; replace it. If it is something that your on the fence about, a rebuild perhaps and need a good reason; replace it. I've never given thought about the service limit on a fixed timing chain. I say that because I'd replace it but something like a 64 Mercedes 220b, 6cyl or a Suzuki, GLS800, you never know, are adjustable. In that case you would look at how much adjustment is left bla bla bla because it's now a $250.00 chain W/O gears.
What's the engine? Just curious, I'm guessing a good-ol Chevy.