Timing belt slipped while I was on my way home tonight... Car might be screwed.

If it's SOHC, then you'll be fine...

If it's DOHC, then you bent your valves by trying to restart it...

This. NEVER buy an interference engine. Why ask for trouble?

Most overhead camshaft engines from the late 90's onwards are interference.

It's the only way to make good horsepower and fuel efficiency.

Otherwise we'd be stuck with feeble engines making less than 50 bhp per litre like the malaise era.

I agree with pulling the head first, and hoping you can just go with a new head/valves already built.

No way to see piston tops otherwise and at this mileage, could use new head anyway.

If the pistons are seen to be toast, pulling a short block isn't any harder than a dressed engine.

Most overhead camshaft engines from the late 90's onwards are interference.

It's the only way to make good horsepower and fuel efficiency.

Otherwise we'd be stuck with feeble engines making less than 50 bhp per litre like the malaise era.

Most Mazdas and Toyotas are non-interference engines.

[link to yourcarangel.com]
Check before you buy. Most Nissons ARE interference.

I do maintenance it's just absolutely wild to me that that little bit of pressure from that hose on the timing cover could cause something so drastic.

It is an interference engine lol

2000 Volvo v70 2.4l in line 5 cylinder.

I believe it's a B5244S engine. Naturally aspirated.

Timing was done at 90000 and it's at 154000.

Just absolutely sucks ya know?

Hands in the air tonight lol

My buddy and coworker just had this happen with his Eagle Talon. I told him there was no chance he didn't bend the valves, he didn't believe me and put a timing belt on it.

He hit the starter.. WHEEEWEEEEWEEEE POW! No compression, big backfire.

If the belt just jumped one tooth, maybe no valve piston kiss.

If the belt broke but engine stopped quickly, valves are toast in interference engine, but piston tops banged only a few times, don't really need changing.

Cranking probably didn't hurt, or make anything worse than when it was coming to a stop

The timing chain and water pump took a crap on my 2011 Ford Explorer. I almost fell over when the shop gave me the estimate. $4000+. They said the parts weren't that expensive, but due to a design flaw they had to take half the engine apart to get to it. Luckily this was during the lockdown when I was getting major $$$ from unemployment and I was able to pay for the repair. They said alot of these vehicles go to the bone yard when the timing chain fails because people can't afford the repair.

OP, if the pistons survived, if there are any sharp edges on a nick from the valve hitting, try to smooth those sharp edges. Don't have to remove the nicks, just any raised sharp edges.

Yes.
Raised sharp places would become hot spots that might lead to cylinder detonation.

The timing chain and water pump took a crap on my 2011 Ford Explorer. I almost fell over when the shop gave me the estimate. $4000+. They said the parts weren't that expensive, but due to a design flaw they had to take half the engine apart to get to it. Luckily this was during the lockdown when I was getting major $$$ from unemployment and I was able to pay for the repair. They said alot of these vehicles go to the bone yard when the timing chain fails because people can't afford the repair.

Okay so we got the head off!

Wasn't the worst thing I've ever done on a car.

Anyway, all 20 valves (10 intake 10 exhaust) are bent it appears. The piston heads have slight marking but not too bad at all (valve bending is pretty standard not too heavy an angle at all)I know I should clean those up so there are no sharp edges to avoid predetonation.

I'll put pictures here as soon as I can. Imgur takes FOREVER to upload photos for no good reason.

Gonna get the head checked and new valves.

New gaskets all around.

Now is when the wallet comes out.

My engine might be capoot. It's my work vehicle also.

What happened was the power steering pump reservoir to pump hose was rubbing against the serpentine belt right at the power steering pump, so I pulled it up and zip tied it and that seemed to work. Otherwise it would soon have sprayed power steering fluid everywhere.

The hose apparently was putting pressure on the timing cover which allowed the cam sprockets to rub the cover to a melting point. This in turn must have made the belt slip off of the tensioner pulley.

I just lost power, pulled over and made one potentially very expensive mistake... I tried to start the car. I could hear that belt sound and immediately stopped. Code was p0339 but upon visual inspection the belt is bent out at the tensioner. It was alarmingly loose but still on gears...

I dunno... It's so weird. Everyone complements this car lately. I love this car... Then this happens.

OMG the thought of a new car is terrifying right now and I simply don't have that money right now...

Any prayer is certainly appreciated.

Sigh.