macbwt Report post Posted July 15, 2015 Here is the video of the exploratory viewing of the 2nd Generation 3.5 Duratec with 95K miles on the ODO. Had to break it down to change the plugs so thought might as well see what is inside. Let me know what you think. I found it to be interesting since I see no video's like this on youtube for the 3.5 duratec non ecoboost engine. 1 Share this post Link to post Share on other sites
fishx65 Report post Posted July 18, 2015 Pretty cool Mac!!!!!! Gonna be fun watching you hit 300,000 miles!!!! 2 Share this post Link to post Share on other sites
carguy75 Report post Posted July 25, 2015 (edited) Here is the video of the exploratory viewing of the 2nd Generation 3.5 Duratec with 95K miles on the ODO. Had to break it down to change the plugs so thought might as well see what is inside. Let me know what you think. I found it to be interesting since I see no video's like this on youtube for the 3.5 duratec non ecoboost engine. Very clean looking engine valves. However, must port injected cars have pretty clean valve stems due to the fuel washing them off. I want to see a Eco-boost engine valve stem after 90k miles due to the direct injection which prevents the fuel from cleaning the valve stem like in our NA 3.5 engines. I bet that will be a different story. Edited July 25, 2015 by carguy75 Share this post Link to post Share on other sites
macbwt Report post Posted July 25, 2015 From some videos I have seen you are correct the Direct injections are showing more carbon build up and the PCV is also creating a bit of an issue due to oils concentrating on the closest cylinders. Time will tell as you said. Just a note: The reason I chose the 2011 is because they were non ecoboost engines. Very clean looking engine valves. However, must port injected cars have pretty clean valve stems due to the fuel washing them off. I want to see a Eco-boost engine valve stem after 90k miles due to the direct injection which prevents the fuel from cleaning the valve stem like in our NA 3.5 engines. I bet that will be a different story. Share this post Link to post Share on other sites
WWWPerfA_ZN0W Report post Posted July 25, 2015 A methanol injection kit helps take care of the carbon buildup issue in the Ecoboost engines 1 Share this post Link to post Share on other sites
thegeoguy Report post Posted February 13, 2018 i changed the spark plugs on my '08 edge the other day with 115k miles and the valves looked similar to yours, just a brown varnish on them. 1 Share this post Link to post Share on other sites
macbwt Report post Posted February 14, 2018 i changed the spark plugs on my '08 edge the other day with 115k miles and the valves looked similar to yours, just a brown varnish on them. I will have to break out the scope again and check since I have over 226,000 miles on it now. 1 Share this post Link to post Share on other sites
