View Single Post
Old 05-17-2012, 06:44 PM   #4
Jake Raby
Engine Surgeon
 
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
The IMS isn't an issue.. The IMS bearing is the issue.

In case you didn't know, the IMS was previously called the "lay shaft" in the aircooled engines and EVERY 911 engine from 1965 used one. Those didn't have any issues due to the method used for their bearing surfaces.. Also the famed Fuhrmann 4 Cam Carrera engine used an "IMS" as a layshaft as early as 1955 without issue.

There is nothing wrong with using an IMS, there is something wrong with using a sealed bearing to support it.

Here is a typ 547 4 cam Carrera engine with layshaft, no sealed roller bearings here~
__________________
Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
Jake Raby is offline   Reply With Quote