986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - IMS Upgrade

Steve Tinker · 10-25-2010, 07:58 PM

To check for engine debris, you need to cut open the old filter and flatten out the pleated paper element.
Metal particles are shiny and can be ferrous (magnetic) or aluminium (non-magnetic).
Black plastic can be from the IMS bearing seal / various plastic engine internals.
Browny red plastic can be from worn chain tensioners.
One guy found green plastic in his filter but the verdict was out (I think) on what the cause of that was.

10-25-2010, 07:58 PM	#42
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	To check for engine debris, you need to cut open the old filter and flatten out the pleated paper element. Metal particles are shiny and can be ferrous (magnetic) or aluminium (non-magnetic). Black plastic can be from the IMS bearing seal / various plastic engine internals. Browny red plastic can be from worn chain tensioners. One guy found green plastic in his filter but the verdict was out (I think) on what the cause of that was. __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.