Do valves bend when timing belt breaks?
The most common thing that’s going to happen if your timing belt fails while you’re driving is that the valves are going to get bent. There’s also potential for a cylinder head and camshaft damage as well, and you could end up the damage to the cylinder walls, the Pistons, and more.
How do you know if you have a bent valve?
The symptoms of bent valves include an engine that won’t start, an erratic engine when idling, lack of engine power, a knocking noise from the engine and excessive exhaust fumes. Engine valves are responsible for controlling the fuel delivery and gas removal in your engine.
What happens if you drive with bent valves?
A bent valve could start a fatigue crack in the stem and if it breaks you drop the valve in the cylinder. You could also hammer the seat beyond where a valve job could fix it or (it the exhaust valves are bent) burn the exhaust valve(s) up.
What happens when timing belt breaks while driving?
What happens if the timing belt breaks? If a timing belt breaks, the engine will no longer work. If a timing belt breaks while driving in an interference engine, the camshaft stops turning leaving some of the engine valves in the open position. This will cause the pistons to strike the valves that left open.
Can you drive on a bad valve?
Unfortunately, yes you can do more damage by continuing to drive with damaged valves. Damaging the catalyst can cause it to break apart internally, leading to plugging up the exhaust and causing an even more severe loss of power, which will make the car very difficult to drive.
Can you straighten bent valves?
If the valves were bent hot, and straightened while in a comparable temperature, chances are you might be able to straighten them without creating microcracks in the steel.
What happens when the timing belt breaks on a car?
The level of damage caused by a broken timing belt can depend on the type of engine you have in your car. A non-interference engine provides clearance between the valves and pistons, so if the timing belt breaks, you might end up with bent valves, and you might have to have your cylinder heads rebuilt, but the engine isn’t likely to be destroyed.
Can a bent valve be identified by the timing belt?
Yes Americar, but they would not have made a $450 profit on an unnecessary job. Cristy, read your other thread too. A bent valve is not easily identified even with the head off. With most OHC engines replacing the belt and attempting to start is the standard procedure.
How much does a bent timing belt cost?
They called me two days later to tell me the valves were bent and this would cost another $3500 to fix. I called other shops and they said they could fix the cylinder head (with a used part) and replace the timing belt for $2,200 all together.
What to do if your engine has a bent valve?
Turn the engine over by hand a couple of times to make sure no internal components are contacting before you button everything back up. If the timing belt were to snap on an interference engine, there is a very good chance that a piston will contact a valve and bend that valve.