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Jake Raby · 03-19-2014, 02:08 PM

Sounds to me like both engines need need wear pads on the cam adjusters. We see these worn at as little as 35K. These had 30K on them with a female driver, which is the catalyst for this wear in so many cases.
These were resulting in cam deviations of 9 degrees. Of the last 20 IMSR procedures we have done on 5 chain engines, 75% of the engines did not pass my pre-qualification due to excessive cam deviations that were created by these components being worn. We will not carry out an IMSR if cam deviations are in excess of 3 degrees, because the car will set a CEL after our work is done and then we have to explain that the issue was not a result of our work.
The 3 chain engine omitted these completely.

03-19-2014, 02:08 PM	#1
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	Sounds to me like both engines need need wear pads on the cam adjusters. We see these worn at as little as 35K. These had 30K on them with a female driver, which is the catalyst for this wear in so many cases. These were resulting in cam deviations of 9 degrees. Of the last 20 IMSR procedures we have done on 5 chain engines, 75% of the engines did not pass my pre-qualification due to excessive cam deviations that were created by these components being worn. We will not carry out an IMSR if cam deviations are in excess of 3 degrees, because the car will set a CEL after our work is done and then we have to explain that the issue was not a result of our work. The 3 chain engine omitted these completely. __________________ 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 Last edited by Jake Raby; 03-19-2014 at 02:11 PM.