Breaking a timing belt
09-17-2009, 06:02 AM
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Breaking a timing belt
I've seen some pretty bad timing belt failures, but the pistons have always made it. This one however, takes the cake.
This is what it looks like when you break a timing belt on a 2002 Kia Rio (pre Hyundai days). The car was over due for a belt, the car had 77k on it. Service was due at 60k. The car was going 40 MPH went the belt broke. It just coasted to a stop and would not restart.
09-17-2009, 06:05 AM
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Re: Breaking a timing belt
man I used to see this all the time at Kia (parts manager) you have to replace timing belt at 50k, 10k under the recommended interval....
09-17-2009, 03:22 PM
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Re: Breaking a timing belt
I call BS on just a timing belt breaking. Those pistons and chambers look like they've been melted, like there was a horrible lean condition for a while under high load. Valves don't break holes in all four pistons when the belt snaps, the valvetrain stops rotating long before that kind of carnage happens. Plus, the piston holes wouldn't have melted edges on them, they'd just be a clean fracture and nothing else (the valvetrain wouldn't have any more energy left after a few good piston hits and it isn't getting driven with a broken belt).
That's a LOT more damage than the engine shutting off at 40MPH because of a broken belt. I see the bent/broken valves, but that belt must have jumped a few teeth a long time before it actually broke in order to blow holes in the piston tops..
Where did that picture come from? What's the real story behind it?
That's a LOT more damage than the engine shutting off at 40MPH because of a broken belt. I see the bent/broken valves, but that belt must have jumped a few teeth a long time before it actually broke in order to blow holes in the piston tops..
Where did that picture come from? What's the real story behind it?
Last edited by Fabrik8; 09-17-2009 at 03:27 PM.
09-17-2009, 03:31 PM
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Re: Breaking a timing belt
I call BS on just a timing belt breaking. Those pistons and chambers look like they've been melted, like there was a horrible lean condition for a while under high load. Valves don't break holes in all four pistons when the belt snaps, the valvetrain stops rotating long before that kind of carnage happens. Plus, the piston holes wouldn't have melted edges on them, they'd just be a clean fracture and nothing else (the valvetrain wouldn't have any more energy left after a few good piston hits and it isn't getting driven with a broken belt).
That's a LOT more damage than the engine shutting off at 40MPH because of a broken belt. I see the bent/broken valves, but that belt must have jumped a few teeth a long time before it actually broke in order to blow holes in the piston tops..
Where did that picture come from? What's the real story behind it?
That's a LOT more damage than the engine shutting off at 40MPH because of a broken belt. I see the bent/broken valves, but that belt must have jumped a few teeth a long time before it actually broke in order to blow holes in the piston tops..
Where did that picture come from? What's the real story behind it?
09-17-2009, 04:38 PM
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Re: Breaking a timing belt
Anyone see the junk layin in the intake manifold? It looks like a couple valves broke off as well... I'd say they kept tryin to restart it over and over... I bet it was also a chicks car b/c those bitches will drive shit even if it makes some stupid noise and not change their oil and shit...
