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Brad Roberts · 03-27-2012, 05:50 PM

We have pulled apart and built numerous S engines over the last couple of years.. ALL OF THEM have worn out cam tensioner pads and crank to IMS pads. All of them. No exceptions. The new cam tensioner pads are made out of much better material, and we have pulled covers on multiple engines we built from several years ago and the new pads are not wearing anywhere near as fast as the OE pads that shipped with the engines.

When something comes in for a top end rebuild, we are going deep dive and pulling the rest of the engine apart and replacing all the plastic bullsh_t in these engines.. as SOP we are replacing the rod bolts/crank carrier bolts with ARP and measuring the drag on the crank in the carrier warmed up (we are looking for a certain inch/lb measurement)

Your engine will fail these parts, and it will cause a lot more damage if you don't do something about it now. The deviation *could* be something simple like out of adjustment, but I'm guessing its a combination of worn plastic bits.

B

03-27-2012, 05:50 PM	#17
Brad Roberts Registered User Join Date: Aug 2004 Location: Alta Loma, CA Posts: 1,334	We have pulled apart and built numerous S engines over the last couple of years.. ALL OF THEM have worn out cam tensioner pads and crank to IMS pads. All of them. No exceptions. The new cam tensioner pads are made out of much better material, and we have pulled covers on multiple engines we built from several years ago and the new pads are not wearing anywhere near as fast as the OE pads that shipped with the engines. When something comes in for a top end rebuild, we are going deep dive and pulling the rest of the engine apart and replacing all the plastic bullsh_t in these engines.. as SOP we are replacing the rod bolts/crank carrier bolts with ARP and measuring the drag on the crank in the carrier warmed up (we are looking for a certain inch/lb measurement) Your engine will fail these parts, and it will cause a lot more damage if you don't do something about it now. The deviation could be something simple like out of adjustment, but I'm guessing its a combination of worn plastic bits. B __________________ Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS. We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.