What causes bent exhaust valves?
Problems such as lack of lubrication and engine overheating can also cause bent valves. On overhead valve engines, lack of lubrication and overheating can cause lifters to stick, resulting in both bent valves and bent pushrods.
What would cause a burnt valve?
Burnt valves occur when the valve can no longer seal correctly after excessive temperatures have damaged the material of the valve. The typical causes of burnt valves are allowing the vehicle to overheat or incorrect fuel being used.
Can a broken timing belt cause bent valves?
Both of the 4-cylinder engines that were available on this model are interference engines. In the case of an interference engine, the possibility of escaping a broken timing belt incident without bent valves and/or damaged pistons is similar to the chance of jumping out of a 6th floor window without sustaining any injuries.
What happens if you neglect your timing belt?
Now you know the disastrous consequences of neglecting your timing belt – engine valve and piston damage, bent valves, cylinder heads that need to be rebuilt or replaced, and possibly even total engine destruction. If you don’t want to see those dollar signs adding up, check your timing belt regularly,…
How much does a broken timing belt cost?
Broken timing belt and bent valves please help! The timing belt broke on my Volkswagen 2001 Jetta. The dealer called me and told me they would replace the timing belt and as long as there were no other problems it would cost $500. They called me two days later to tell me the valves were bent and this would cost another $3500 to fix.
Can a BMW M20 escape a timing belt break?
On the interference engine with timing belt that I have the most experience (BMW M20) the chances of escaping a timing belt breakage incident without valve damage are absolutely zero. The real question would be if we could save the head.