[JFP in PA]

Unfortunately, it isn't "marketing hype". We have only seen one or two engines that were full of metal and survived more than 100 miles after thoroughly flushing the oil system and installing a new IMS bearing out of perhaps a dozen attempts. Far more common is for the new IMS to start to come apart in 50-100 miles due to debris getting into the new bearings. It only takes one particle of metal to get into the bearing to kill it, which is why we stop when ferrous debris is found in the sump or filter. For us, it simply is not worth the grief to move forward on something we know has little chance of success. While very few people hear about the dozens of successful retrofits, it seems everyone hears about the one that goes south.