Back story, this motor was fully rebuilt by kuzimmer (here's the for sale thread https://www.r3vlimited.com/board/sho...light=kuzimmer) a few years ago as a S52/M50 hybrid. When I picked up the car ~18 months ago I didn't get any history with the car... so thinking we had a M50 motor last new years day I pulled it to swap in a S52... Long story short after finding out the original motor was better than the junkyard one I had purchased I undid the oil pan swap/etc I had done and put the original motor back in the car.
So all that done (and replacing the worn 4 puck clutch/M20 flywheel with an aluminum flywheel and M5 clutch from UUC) everything is back in running and making a very unpleasant sound of metal sliding against metal whenever the engine is running. I haven't been able to track down the sound (though I sounds like its coming from the bell housing). Everything (clutch, cooling, oil pressure, etc) seems to be working correctly but I haven't been brave enough to put the car down and drive it around the block. I did, only once, running the engine for ~5 min to see if it just needed oil circulated in the block etc. There wasn't any change in the noise during that 5 min run.
The video below has a ~15 sec clip of me starting the engine, reving to ~2500 rpms, and then turning the engine off.
Any ideas or thoughts from the collective wisdom here as to what the noise could be?
Chris
So all that done (and replacing the worn 4 puck clutch/M20 flywheel with an aluminum flywheel and M5 clutch from UUC) everything is back in running and making a very unpleasant sound of metal sliding against metal whenever the engine is running. I haven't been able to track down the sound (though I sounds like its coming from the bell housing). Everything (clutch, cooling, oil pressure, etc) seems to be working correctly but I haven't been brave enough to put the car down and drive it around the block. I did, only once, running the engine for ~5 min to see if it just needed oil circulated in the block etc. There wasn't any change in the noise during that 5 min run.
The video below has a ~15 sec clip of me starting the engine, reving to ~2500 rpms, and then turning the engine off.
Any ideas or thoughts from the collective wisdom here as to what the noise could be?
Chris
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