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Category Archives: Engine Mechanical

The IMS Solution

The IMS Solution takes a very different approach to Porsche’s IMS bearing design. The IMS Solution follows the lead of the intermediate or lay shaft which has long been used (trouble free) to rotate the camshafts (via chains) in all Porsche horizontally opposed Boxer type overhead cam air/oil cooled engines. This basic design was first used in 1956 with Ernst Fuhrman type 547/1 dual overhead cam flat 4 engine for the 356A Carrera. This system worked so well that it found a permanent place in all the Mezger/Piëch designed flat 6 cylinder air/oil cooled engines from the 1965 type 901.01 to the 1998 M64.60 993 Turbo plus the water cooled GT1 type racing engine and its road versions used in the 996/997 Turbo, GT2 and GT3 Models. The IMS solution is a plain bearing replacement system for Boxster and Carrera models for years 2000 through 2005 that utilize the smaller diameter single row IMS bearing. While the IMS Solution is a simple straight forward design, its constr ... read more

959 Valve Cover reseal

959 Valve Cover reseal

IMS Guardian, Part 2

Up until now there has been no way to determine the condition of the IMS bearing without removal of the transmission and associated components to perform a direct inspection of the bearing. Due to the time and expense necessary to gain access to the IMS bearing, it is generally considered best to remove and replace it regardless of its condition as a preventive measure. The IMS Guardian is sold as a complete system. The package includes a wiring harness, electronic circuitry box with audio buzzer, all wiring connectors, an LED warning light/test switch, the MCD sensor, installation instructions and a step by step Installation DVD. The installation is straight forward and made relatively easy by the details available in the manual. It appears that Raby Engine Development has done the hard work of thinking through the process and has designed a product that is easy to install and operate. Someone that works on their own car and can follow electrical w ... read more

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