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AERA Technical Bulletins – May 6, 2022



Valve Lash Adjustment for 2010-2022 Ford 2.0L Ecoboost Engines


The AERA Technical Committee offers the following information on the valve lash adjustment for 2010-2022 Ford 2.0L Ecoboost engines. To achieve the desired valve lash specifications listed below, refer to the chart to obtain the proper thickness lash compensator bucket. These adjustors are available in 35 different thicknesses.




Piston Protrusion on Deutz D2.9L4 Diesel Engines


The AERA Technical Committee offers the following information on the piston protrusion for 2011-2022 Deutz D2.9L4 diesel engines. This information should be considered both during engine disassembly and reassembly to verify proper compliance for emissions.


The pistons used for this engine have two raised crowns on the very top of the piston as well as a combustion bowl as shown in the diagram below. Measuring piston protrusion should be done using those raised areas to properly determine the indicated dimension.




Neglected Rotocoils


By Steve Scott


“Neglected, unappreciated, disregarded and overlooked” — this might summarize the service life of a valve rotocoil. These unsung workhorses in an industrial engine’s valvetrain are a major component in getting the full-service life from an engine. Plus, if this workhorse stops functioning, it can wreak havoc in your engine. Depending on the application, these rotators can be above or below the valve springs, and function with either single or dual spring designs. They are used on both intake and exhaust valves in a variety of heavy-duty engines.




Subscribe to the AERA YouTube Channel


The AERA YouTube channel features Prosis Pro tutorials, AERA webinars and membership information. We invite you to check out the wide selection of videos and subscribe! New content is added regularly.




Podcast Episode 17

Small Diesel Engine Opportunities


Steve and Chuck interview Paul Kelly from Maxiforce Engine Parts, who supplies diesel engine parts, about the opportunities that are out there for machine shops in the small-bore diesel engine market. Paul enlightens everyone about how one engine can be used in several different pieces of equipment from one manufacturer. Also, this month’s history segment pertains to the Indianapolis 500 and how one of our longtime associate members participated in the Indianapolis 500 in the early years.




AERA Tech & Skills Conferences


Everyone in business owes it to themselves and their business to gain knowledge and network with other people within the same industry. AERA understands that traveling to national trade shows to gain knowledge and networking opportunities is very expensive. Therefore, AERA has decided to help by teaming up with a regional host and offer these opportunities to different regions of our country and hopefully closer to your shop. All shops welcome! Need not be an AERA member to attend.




Not an AERA Member? Join today!


Become an AERA member today and start enjoying the benefits of one of the oldest and most respected technical organizations in the world. You’ll have full access to a wealth of information, knowledge and training… plus much more!











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