My Nissan 350z has spun a bearing so when i have the car running it is making a knocken sound so could that be my crankshaft bearing or my rod bearing ?
yes, one of those--usually the rod bearing/crankpin. Remove the oil pan and try pushing each connecting rod bottom from side to side to see which one it is.yes, one of those--usually the rod bearing/crankpin. Remove the oil pan and try pushing each connecting rod bottom from side to side to see which one it is.
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that is a rod knock or a spun crankshaft bearing-and it usually means replacing the engine, or removing the oil pan and replacing crankshaft bearings or doing a major overhaul.
AutoZone on-line has some good step by step directions and some include pictures. You have to register first ( free) and then just navigate to the "repair info" section.
I think the person that said to just change the brg with a new std one without taking a precise measurement of the crankshaft journal gave you bad advise. I ALWAYS "mic" the journals to see if they are undersized. that involves the use of a set of micrometers that can measure thousanths of an inch.
you have a major engine problem you need a rebuild or replacement engine ! you may have spun a barring or rod mains are worn and could break your crankshaft!
Knocking sounds in the lower engine area usually are from loose/damaged connecting rod bearings. Repairs are centered around resurfacing or replacing the crankshaft and the associated bearings. (many penny!)
Your vehicle timing chain jumped a sprocket
spinning a bearing means that the bearing does not get enough oil between it and, it's rod; causing the "babbet" a soft slippery metal lining the bearing; to heat up and, weld it's self to the crankshaft or. piston rod
you can fix it. you shouldn't drive the car anymore to prevent damaging other parts. it sounds like a spun bearing, which is cause when the bearing doesn't recieve enough oil. the bearings are usually in a fixed position with the crankshaft rotating between them. the knocking noise is from the bearing wearing down from lack of oil, and they start rotating with the crank.
it might not be worth fixing because the cost of fixing it may be more than what the car is worth.
yes, one of those--usually the rod bearing/crankpin. Remove the oil pan and try pushing each connecting rod bottom from side to side to see which one it is.
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