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Fitted new bearings with a crank slightly scratched,will it last?

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Not very long .

Posted on May 30, 2010

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While tough to say from this vantage point it would appear the wrong size bearings may have been used. Did your mechanic use plasti-gae to confirm what size bearing were needed? A newly reground crank with proper bearings and lube should be able to have been rotated.

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I HAVE A MK2 MR2 WITH A BIG END BEARING NOISE,I HAVE BEEN TOLD ITS A SIMPLE REPAIR, AND CAN BE DONE WITHOUT INVOLVING ENGINE REMOVAL, CAN ANYONE CONFIRM?


Yes and no... The most common problem in the bottom end is with cylinder number 1. It gets oil starved. This is in the 3sgte. Not sure what motor you have. You can change the bearing without taking out the engine....But you will have to drop the sub frame and oil pan. Problem is, is that you dont know if the crank needs reground and or resized. Or if the rod is bad and ovaled. The bearings wont fit.... you can replace the bad bearings.YES! But how long will it last since it wasnt done correctly? Best case. If there is no damage to the crank and rod? Sure it can last a long time with the rite size bearings. But chances are the rod is bad, the crank needs reground/ or its bent it will need machined. good luck

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