Good afternoon
2011 Ford Expedition King Ranch 208K miles. So after having miss fires on passenger side cylinders and random rich mixture codes, I decided it was time to take off the valve cover and inspect. This is the first time the valve cover has been off this engine and the engine has not had a new timing job. All original parts.
Discovered on the #2 cylinder the aft intake valve rocker completely gone but recovered it (all chewed up) as well as the valve spring completely off just sitting in the top of the space. Found the retainer but no signs of the keepers. The valve stem is in the full up position (not sure if this means I'm lucky) but also not sure if its stuck in the closed position because of unknown reason. Before attempting to replace the spring, keepers, retainers and rocker arm any suggestions on verifying no internal damage to piston area and or cap of valve stem? I will most likely be doing a full timing job but want to make sure this is salvagable before putting that amount of money into this engine. At a minimum if the stem is still functional I will also be replacing the camshaft as the lobe is chewed up. Any thoughts, inputs, suggestions would be greatly appreciated.
2011 Ford Expedition King Ranch 208K miles. So after having miss fires on passenger side cylinders and random rich mixture codes, I decided it was time to take off the valve cover and inspect. This is the first time the valve cover has been off this engine and the engine has not had a new timing job. All original parts.
Discovered on the #2 cylinder the aft intake valve rocker completely gone but recovered it (all chewed up) as well as the valve spring completely off just sitting in the top of the space. Found the retainer but no signs of the keepers. The valve stem is in the full up position (not sure if this means I'm lucky) but also not sure if its stuck in the closed position because of unknown reason. Before attempting to replace the spring, keepers, retainers and rocker arm any suggestions on verifying no internal damage to piston area and or cap of valve stem? I will most likely be doing a full timing job but want to make sure this is salvagable before putting that amount of money into this engine. At a minimum if the stem is still functional I will also be replacing the camshaft as the lobe is chewed up. Any thoughts, inputs, suggestions would be greatly appreciated.