I had to rent/buy the tools for pulling/installing prechambers during the rebuild of my 240D engine and was wondering if, while I have the tools, there would be anything that would be gained by pulling the pre-chambers on the 300D just to see what kind of condition they are in. The car runs great, starts right up when cold and is returning appropriate fuel milage. Can you inspect prechambers like you can a spark plug and tell anything about what is going on inside the engine? Do prechambers "wear" out?
thanks

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Jim