Rambling about timing chains and stuff

[geezer101]

When a timing chain is dead, it'll be noisy. No mistaking the sound they make when they're toast. As a rule of thumb, the chains and guides should've been replaced by 125,000 miles. If the engine hasn't been punished but nobody has taken a wrench to it in decades, the noise almost sounds like diesel knock lol.

[charger_john]

When a timing chain is dead, it'll be noisy. No mistaking the sound they make when they're toast. As a rule of thumb, the chains and guides should've been replaced by 125,000 miles. If the engine hasn't been punished but nobody has taken a wrench to it in decades, the noise almost sounds like diesel knock lol.

Good info, thanks!
125,000 miles in australia, what does that equate to up in north america?

[charger_john]

..... if the engine hasn't been punished but nobody has taken a wrench to it in decades, the noise almost sounds like diesel knock lol.

So yeah my engine does make some mild knocking noises at times. Is this an indication I need to adjust tension? The Haynes manual does not seem to cover this.