I think you are on the right path. Basically, when this happens the force from the combustion in the cylinder pushes the piston down into the crank journal. However, when the bearings are metal to metal, they actually lock up instead of rotating.
So, it starts to turn, and it may fire and then stall. Once it is bad enough the engine will start to turn and then it will lock up again.
It may turn by hand but eventually it will most likely lock up completely.
Let's start checking this by draining the oil and changing the filter so that we can inspect it for metal.
Let's drain the oil into a clean pan so that you can swirl it around and look for metal. If you want any of those gold rush shows, you are doing this like looking for gold. When you swirl it the metal will be at the bottom of the pan.
If there is metal, then we are basically looking at replacing or rebuilding the engine.
Let us know what you find. Thanks
Saturday, June 11th, 2022 AT 11:49 AM