Quote:What's you oil level now and (assuming it's significantly low) was the oil lost when the valve cover broke, sufficient to make up this shortage? In other words, did the oil level appear to be low before the failure? If the answer is no and your coolant level is OK, then it's very unlikely that the engine overheated. That means your cylinder heads shouldn't be warped or cracked, though they could still be damaged by a valve.


Any visible damage to the camshaft?

Any broken pieces other than the rocker arm? Spring? How big are the pieces?

Any tiny metal piece in the oil? (Do you know what grindings look like?)

Can you move the broken arm valves freely by hand? If it sucked down a valve . that's bad news. Pull the sparkplug out of the cylinder the broken rocker arm services and take look inside. Depending on the position of the piston, you might have a view of the surface, which can tell you a lot.


Post a couple pictures of the damage.