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Old 13-10-22, 04:28 PM
Thor Thor is offline
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Join Date: Jul 2008
Location: Meriden near Coventry
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Strictly speaking my knowledge on this particular point is confidential, but loosely, there was a reliability problem with the way the bearing shells were located for the 2.7 and early 3.0 main bearings. The bearing shells can rotate, and then they obviously cut off the oil supply to that bearing and the adjacent crank bearing. Various fixes were tried unsuccessfully, but a revised location system was implemented about 5 years ago, and it has been implemented at the place where the remanufactured engines are done as well, so if you buy a replacement engine from the dealer, whether new or 'recon', it SHOULD have the reliable bearing arrangement. So it is highly unlikely that it will happen again.
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