The IMS Retrofit and IMS Solution procedures are intended for PROACTIVE installation and not REACTIVE measures only and should be considered a preventative maintenance item, like a timing belt on many modern engines. Once your original bearing has failed it is too late. Performing an IMS Retrofit or IMS Solution procedure after a failure will not “save” your engine.
Foreign Object Debris (FOD): One of the most common sources of trouble in bearings is wear and pitting caused by foreign particles and is responsible for 70% of all early bearing failures.
With tens of thousands of IMS Retrofit procedures having been carried out since 2008, we have enough experience to confirm that foreign object debris can and will compromise the replacement IMS bearing. We have confirmed and documented failures of the IMS Retrofit bearing after it was installed as part of a reactionary procedure when the original bearing had already started to fail or had failed completely.
The only way we have seen an engine saved is if it had been fitted with an IMS Guardian or LN Engineering full-flow Spin-On Oil Filter Adapter AND only if caught in the earliest stages of bearing failure. The spin-on oil filter adapter by design prevents oil and debris contained within the filter from bypassing the filter, unlike the factory arrangement that has a bypass located in the base of the filter housing, where debris collects, which is then re-introduced into the engine during normal operation.
This is especially true at start up, when oil pressures are high due to cold oil, and are great enough to open the filter bypass. Unlike other engines that may bypass oil back into the crankcase when the bypass opens, the M96/ M97 factory bypass simply allows the additional oil/ pressure to bypass the filter, where it is then sent directly to the rod and main bearings. Any debris that is suspended in this oil will create additional wear that will also become suspended in the oil and the issue will become progressively worse. That is why we also recommend installing our 106-07 magnetic drain plug and a FilterMag SS300 on every Porsche Boxster, Cayman, and 911 engine.