Timing Belt Snapped :(

[ForcedFirebird]

Pull the valve cover.

See what it says. It may say 'rocker chunks' or even 'head chunks'

It's likely you bent one or 2 or 3. Probably not 6, at idle.

You COULD try putting a new belt on it to see what the damage is
But there probably is some. If it was me, I'd pull the head.

Because:
If you can DIY, it's not too hard or expensive to fix.

t

We have repaired about 5 of them in the last year or so. One happened during starting and broke 2 valve heads off, the rest bent. Might get lucky and have a couple not bend, but in my experience, most/all the exhaust valves bend. Had one that had zero visible damage upon valve cover removal. If our timing belts "broke" and not stripped the cogs off them, I would say there's a chance only one bent (since the cam would stop moving at that instant), but is what usually happens is a few cogs get stripped off and the cam continues to rotate with the timing severely off, bending all the exhaust side.

[jalopi]

I used to have customers (with hondas, mostly civics) that would insist that I try doing a timing belt job on something that alreadybroke. The hondas seem to be the ones that somehow magially never take damager and run safterwards

[e30vert]

Do the math. At idle the engine is rotating approx 800 RPM - Revolutions per minute. 800 divided by 60 seconds is 13.33. So every second that the engine rotated after breaking the belt it had 13.3 chances to bend / break valves and other parts. That is if you shut the engine down to a dead stop in one second. There was probably alot more than one second that elapsed after that belt gave way.

Pull. Inspect.

[TobyB]

Pull the valve cover.

See what it says. It may say 'rocker chunks' or even 'head chunks'

It's likely you bent one or 2 or 3. Probably not 6, at idle.

You COULD try putting a new belt on it to see what the damage is
But there probably is some. If it was me, I'd pull the head.

Because:
If you can DIY, it's not too hard or expensive to fix.

t

[SkiFree]

When was the last belt change?

[ForcedFirebird]

You just bent 6 exhaust valves sir.

[jeffnhiscars]

Start by removing the valve cover and look for broken rockers. I'm not aware of anyone breaking a TB and NOT damaging something, but I cant say its not possible. While you can replace the belt and then hand rotate the engine to check for valve damage, the best practice is to pull the head.

[dustyperez]

best pull the head and look im sure something bad happened

[FLG]

You bent valves..

Pull the head and send it out to bimmer heads and have shant take care of you. I find a lot of local shops simply suck are theifs, or both.

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[blizake500]

My timing belt broke at idle sitting at a stop sign. Can I just replace my timing belt or do you guys think there could be damage? Thanks