Quote:
Originally Posted by Oksamit78
It is not easy to make out the exact location of all the noises, but it does sound that a lot of that is coming from the upper portion of the engine. The thing is, if your engine ran with low oil, there could be extensive damages to the valve train at the top. The lobes of camshafts could be scorched and damaged, for example. If you absolutely need to see for yourself - you'd have to take the valve cover off. Same type of damages could have occurred to the crank shaft bearings due to the starvation of oil...
The replacement of the oil pump is a major undertaking on it's own as a lot of things need to be removed from the bottom (absolutely need a shop lift to do that) before one can reach the oil pump. I know that on X5/X6 the lower frame has to be removed first in order to get the oil pan removed to access the oil pump. Those vehicles have the oil pump premature failure history, but the engines are slightly different as B58 Gen 1. Could be the same challenge with F30.
Overall, it is a huge job, as the engine would need to be taken apart from top side and from bottom gradually stripping a lot of things off until the sources of loose metal found. The head would need to come off as well. Then the internals need to be washed to flush out the metal debris that could be stuck in the internal passages.
I don't see you talking about the oil filter. Did anyone check it for trapped debris? There has got to be some since the shop found the metal in the oil pan.
You are stuck in a tough spot, tbh. If you don't have a garage space, time and tools to do the engine rebuild, you [...]
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Thank you for the reply!
Certainly a lot of info to think over. I appreciate all the effort you put in to trying to give me some help.
As for the oil filter I believe the shop mechanic told me verbally that they pulled the filter and changed it, but on closer inspection it seems that they didn’t put it in the notes, so I could very easily just be totally misremembering. I will be checking the oil filter today.
A tough spot indeed lol. Thank you for the support!