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AERA Technical Bulletins – November 24, 2021


Cylinder Head Installation for 2011-2021 Chrysler/Jeep 3.6L Engines 


The AERA Technical Committee offers the following information regarding the installation of the cylinder heads for 2011-2021 Chrysler/Jeep 3.6L engines. This information should be considered anytime the cylinder heads are being reinstalled on the engine.


This unique procedure is best performed with the aid of an electronic torque wrench and consists of 9 steps. The installation of the cylinder head gaskets is not interchangeable between the left and right cylinder heads. The gaskets are clearly marked with “R” for right and “L” for left. They must be applied on a dry surface, without the use of any adhesives. It should also be noted the head bolts may be reused if not damaged and should be cleaned and dried, do not use any sealer or lubricant.




​AERA offices will be closed Thursday and Friday, November 25-26.

In this season of gratitude, we would like to say thank you for being an AERA member. May the good things of life be yours in abundance. Wishing you a very Happy Thanksgiving!



Front Damper Bolt Replacement on 2001-2008 Mazda 2.0 & 2.3L Engines


The AERA Technical Committee offers the following information regarding the replacement of the front damper bolt on 2001-2008 Mazda 2.0 & 2.3L engines. This engine uses a one time use bolt to hold the damper on the front of the crankshaft.


When removing or replacing the crankshaft pulley, always be sure to follow the workshop manual procedures. The crankshaft pulley is not keyed to the crankshaft and when loosened, it may move out of position on the crankshaft. The engine MUST be re-timed whenever the crankshaft pulley bolt is loosened, removed, or replaced.




Modern Engine Challenges Drive Harmonic Balancer Innovation




Reducing materials and improving fuel efficiency are pillars of modern OE engine design. Fortunately, that doesn’t mean sacrificing performance. Who would have thought 10 years ago

that 150-horsepower-per-liter would be common off the dealer showroom? With 25-plus highway mpg to boot?!


To get there we’ve seen remarkable achievements in forced induction, direct injection, cylinder power density, higher rpm and streamlined aerodynamics. And the trend is projected to continue.

According to the SEMA Future Trends Fall 2018 report, “By 2025, 58 percent of new vehicles will be turbocharged.” In addition, “engines over 5.0L will see a decreased [market] share as a result of these engine advancements.”




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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!




Podcast Episode 13 – AERA Online Training


Steve and Chuck discuss the AERA Engine Machinist Online Training and Certification Program, along with AERA’s Rob Munro and special guest Dave Capitolo, who is an instructor from De Anza College. Dave goes into detail about how he uses the program in his classroom to help teach engine rebuilding. The group discusses the program and how it can benefit you moving forward when looking for job placement in the engine machining/building industry. Steve and Chuck also discuss the BOSS 302 and everything happening at the upcoming PRI Show!




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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.













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