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ill drive it for a 100-200 miles and drop the pan even the upper sump housing ( upper oil pan) and see how it looks like, and send out the sample, if it looks like the rod bearings i can just swap them out from bottom. I read on rheingold i need to go with new set of rod studs and shells ofcorse. Btw i did a full warm up today and did listen to my engine in side a warehouse between 2800-3100 rpm. it sound just like rod noise. but if any one of you guys would do a recording for me i would really be happy. that will make it easy to verify my problem. i did the recording with an iphone in frond of kidneys. also when the na m3/m5 guys do rod bearing do they replace the crankshaft?
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