Looking Fresh
Moving forward with AERA’s Online and Hands-on Training Programs By Rob Munro Engine technology is changing at lightning speeds and so is the training needed to stay ahead. As the preeminent technical resource and industry voice for internal combustion engine …
Diesel Engine Diagnosis, Part 1
Looking for better clues By Francisco Aristizabal Engine diagnostics procedures are often the greatest challenge when trying to solve a diesel engine failure. When hard parts are involved, i.e., head, block, etc., sometimes some symptoms can be misleading, and cause …
The Missing Step in Rebuilding a Heavy-Duty Diesel Engine
By Steve Scott Great job, you have tightened the last bolts and fittings on your freshly rebuilt engine. It is filled with coolant and oil and ready to run, but if you miss the next step, you may be very …
Prosis Pro is Bursting with New Engines
By Rob Munro Rolling into 2025, AERA’s Prosis Pro Engine Specification Software is now loaded with over 15,000 engines. As the leader in supplying technical engine specifications and information, our plan is to add 1,000 new engine listings to Prosis …
Overbalancing and The Use of Heavy Metal
By Mike Mavrigian While the “traditional” approach to crank balancing is to consider 100% of the rotating weight and 50% of the reciprocating weight, there are slight advantages in deviating from this by slightly increasing or decreasing this balance factor …
Sleeving Aluminum and Cast Iron Blocks
By Brian Roberts Machine shops are continually asked to help salvage engine blocks. This leads to the need to sleeve an aluminum or cast iron block. This information should be used anytime salvage operations are being performed on gas or …
Shop Supplies
By Andy Kennedy Shop supplies are a necessary component of any service or repair. Make sure you’re covered. When it comes to shop supplies, the cost of these items is often absorbed by many shops not realizing just how much …
Cummins Hydrogen 6.7L Engine
By Brian Roberts Cummins has released a new version of the 6.7L engine found in many trucks today. This hydrogen engine was developed to offer cleaner burning fuel for emissions on trucks and pieces of equipment. Europe is rapidly transitioning …
Engine Diagnostics
What every shop should consider By Chris Hamann How many times has a customer dropped off a cylinder head at your machine shop stating that it has a misfire. You go through the head, give it back to the customer, …
Improving Productivity and Quality with the 5S System
By Fernando Curello The need for better and more consistent productivity, quality and overall business results have been the motivation for the automotive manufacturing industry for more than 100 years. There is no doubt that the improved production systems and …
540 CID Big Block Chevy Build – Part 1
By Mike Mavrigian NOTE: This article covers our 2021 EREF engine build (part 1 of 3), originally published in our Q2 April-June 2021 issue. For this year’s engine build project, we decided to go “old school” and build one of …
540 CID Big Block Chevy Build – Part 2
Big Block Heaven By Mike Mavrigian NOTE: This article covers our 2021 EREF engine build (part 2 of 3), originally published in our Q3 July-September 2021 issue. Let’s be honest…even considering all of the advanced powerplant choices available today, who …
Cylinder Head Straightening
By Francisco Aristizabal One of the most frequently asked questions that we receive in the AERA technical department is regarding cylinder head thickness specifications and their limits for machining. Before the cylinder head can be reused, the cylinder head thickness …
Interview with a Heavy-duty Diesel Engine Part
By Steve Scott Some engine parts are always looking to be in the limelight, while others quietly do their jobs unnoticed in the background. We are hoping to interview one of those behind-the-scenes parts – the cylinder liner. Q: Excuse …














