Rocker Arms on passenger side broke?

Hi,

If you have bent valves, oftentimes you can tell by watching if they fully return to the closed position. If they are bent, it's unlikely they won't close fully.

You can use a borescope to look down into the spark plug holes to see if there is evidence of damage. Keep in mind, if they hit hard enough to break the rocker arms, there could be damage to the pistons.

If the engine is placed in time and the damaged parts are replaced, you can perform an engine compression test. If you have a bent valve, oftentimes there will be little to no compression in the affected cylinder.

Here is a link that explains how that is done:

https://www.2carpros.com/articles/how-to-test-engine-compression

Let me know if you have other questions or if I can help in any way.

Take care,

Joe

Hi,

As far as the driver's side, it is all based on how the timing was set. If it was incorrect, the opposite side may have not been in the position to be hit. That is what I believe happened.

As far as not turning it over very long, that usually doesn't matter. If it was hitting hard enough to break the rocker arms, it was hitting extremely hard.

When I work on timing any engine, once I have the marks set and put back together, I always turn the crankshaft by hand at least four or five rotations gently to see if it stops turning at any point. It's just a way to make sure there isn't going to be interference.

Let me know what you find and what I can do to help.

Take care,

Joe

Hi,

Does the engine sound normal when it is cranking? Is it possible for you to record it cranking and upload it for me to hear?

Also, have you checked for spark to the plugs and fuel?

Let me know.

Joe