986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Opinions are welcome on IMS issue. ...I know

Gelbster · 11-06-2016, 08:48 AM

There is one fallacy that is seldom admitted by the "frequent oil change+filter inspection" advocates(like me!!).
An IMSB may fail within your oil change interval.It may deteriorate quickly. Ferrous debris will spread throughout the oilways. Then you need a total dismantling of the engine. Probably catastrophic damage will also occur.
So we need an,experienced person like JFP to advise us of his experience with hundreds of M96 engines - how reliable is the 3kmile oil +filter change in detecting IMSB failure to prevent engine damage ? Let's assume we have a magnetic drain plug,LN filter and magnets on the full-flow filter . Would The Guardian improve the odds much?
Even though some of us have rebuilt an M96 and studied the IMSB & Modes of Failure issues diligently, our basis of experience is so small ,we should acknowledge that weakness when we offer advice on the IMSB.Most of us are noobs !
The other idea seldom discussed is also attributed to JFP - is it wise to install a plug behind the new IMSB (like The Solution has) . If you are doing a rebuild and pinning the sprocket like I did, it seems a no brainer. If I had them, I would have done that !If it is a Retrofit. a simple piece like a core plug may be effective?

11-06-2016, 08:48 AM	#15
Gelbster Registered User Join Date: May 2014 Location: S.California Posts: 2,029	There is one fallacy that is seldom admitted by the "frequent oil change+filter inspection" advocates(like me!!). An IMSB may fail within your oil change interval.It may deteriorate quickly. Ferrous debris will spread throughout the oilways. Then you need a total dismantling of the engine. Probably catastrophic damage will also occur. So we need an,experienced person like JFP to advise us of his experience with hundreds of M96 engines - how reliable is the 3kmile oil +filter change in detecting IMSB failure to prevent engine damage ? Let's assume we have a magnetic drain plug,LN filter and magnets on the full-flow filter . Would The Guardian improve the odds much? Even though some of us have rebuilt an M96 and studied the IMSB & Modes of Failure issues diligently, our basis of experience is so small ,we should acknowledge that weakness when we offer advice on the IMSB.Most of us are noobs ! The other idea seldom discussed is also attributed to JFP - is it wise to install a plug behind the new IMSB (like The Solution has) . If you are doing a rebuild and pinning the sprocket like I did, it seems a no brainer. If I had them, I would have done that !If it is a Retrofit. a simple piece like a core plug may be effective? Last edited by Gelbster; 11-06-2016 at 08:53 AM.