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Yes, it can bend valves when a timing belt breaks.
Yes, the 1999 Kia Sportage with 2.0L DOHC is an "interference" engine, meaning the valves can hit the pistons if the timing belt broke.
This is an interference engine. The valves normall collide with the pistons when the belt breaks. Damage is usually bent valves, and sometimes broken valve guides also
It can, because when the timing chain/ belt fails, the pistons and valve are no longer in time, and the valves can be pen when the piston comes back up. This can cause bent valves, and piston damage. this is wrong a 2.3 is not a critical clearance engine the valves will never hit the pistons.
Common signs are: Hesitation, poor running, valve clatter, and loss of power. A broken timing belt or timing chain can cause an engine to stop running or cause the valves to crash to the pistons.
your timing can not be right
The main cause for bent valves is a failure in the timing chain or belt. When the valves and pistons are not exactly in sync, they can collide.
The timing belt itself can not hit the valve unless you put it inside the intake manifold. If the belt breaks on a 2.0L it will almost always bend valves. The 2.4L and 2.5L very seldom bend valves.
The Simple answer is yes the piston its the valves and possibly damage the pistons
ur timings off the blocks timing doesnt match ur heads timing so the valves open up as the piston comes up and hits the valve
If you get gas to the intake but not to the spark plugs (assuming that you have injector pulse and normal injector operation) you probably have such a condition that the engine valves are not opening and closing normally. Check for a broken timing chain or other cause of cam not turning. If cam is turning, check for broken or severely bent pushrods or broken valve rockers or broken valve springs or valves 'sucked' into cylinders. You could also have a severe engine problem such as damage pistons, rings, block, head, or some such similar.
Yes there is a chance of valve damage when a timing belt fails. Being that the valves and pistons operate in the same cylinder at different times to preform their tasks. The timing belt keeps the valves and pistons in time so they do what they should when they are suppose to, when the belt fails, the pistons are still moving and the valves stop. The piston can then collide with the valve causing damage to the valve and also move the valve causing other valves to move, causing even more damage to other valves in the system as the other pistons continue to move. Need more help contact me through my board and I will try to help.