Wouldn't the filter have caught it all. The rockers would get clean oil. Then after them its full of shit then it goes no where and back thru th filter.
Why would the plastic bushes fail????. Is what I would be asking.
Then why would anyone not put the correct part back in. That makes no sense at all. I'm guessing the plastic bushes would be cheap as and in stock. My motor is apart and at 1740 hrs the bushes are perfect. If you are doing a full rebuild you would want to your sums before you commit to it. In 2 mins the oil pump is off. If that is fine then I would say everything else is fine as well.
Lyndon