Variable geometry is a fancy term for extra moving parts. Unless you fly aircrafts, variable geometry will always refer to certain turbochargers (VGTs, or Variable Geometry Turbochargers). VGTs have turbines with vanes that move depending on the needs of the engine they’re attached to.
Continue reading How does a Variable Geometry Turbocharger work?Category: Blog – All HHP Blog Articles
What Are Fuel Injector Trim Codes?
Fuel injectors are designed to deliver precise amounts of fuel – but no two injectors are perfectly identical.
That’s where fuel injector trim codes come in.
These codes allow the engine control module (ECM) to compensate for slight differences between injectors, ensuring consistent fuel delivery across all cylinders.
Continue reading What Are Fuel Injector Trim Codes?Oil Change Intervals after Diesel Engine Break-In
Proper break-in after an engine rebuild is one of the things that we find a lot of our customers don’t know about. Because it’s so little known, we wrote another blog about it, which you can find Click here for the Diesel Engine Break-In Procedure blog. Another thing that most people don’t realize is that break-in isn’t complete after that first high-horsepower session. In reality, an engine is fully broken in when it does not lose any oil, which can take months for even the most active of engines.
Continue reading Oil Change Intervals after Diesel Engine Break-InWhat is a core charge and why do I have to pay it?
Considering how common core charges are in the diesel engine industry, a surprising number of our customers ask us that question every day. If you are also one of those people, we’ve put together this handy guide for something you should probably familiarize yourself with if you’re planning to buy replacement parts.
Continue reading What is a core charge and why do I have to pay it?5 Easy Ways to Improve Fuel Economy with Your Diesel Truck
There is no denying that diesel prices have been a tad high lately.
Anti-Polishing Rings (APR) Explained
APR stands for anti-polishing ring. Other terms for anti-polishing rings include carbon scraper ring, piston cleaning ring, and bore polishing ring. Whichever term you use, it refers to a newer development in Cummins ISX engines where a cylinder liner will have an anti-bore at its top that holds a ring insert. You can see the diagram below of the liner and ring profile.
Continue reading Anti-Polishing Rings (APR) ExplainedCummins ISX Engine Spotlight
The huge company that is Cummins was founded almost a century ago in 1919 by Clessie Cummins. Cummins partnered with J. Irwin Miller, who helped Mr. Cummins grow his business. With Cummins’ diesel knowledge and Miller’s business expertise, the company quickly grew. In the years after World War II, the N-Series heavy duty trucks helped the company become an industry leader, and the company’s first overseas facility was built in Scotland in 1956.
Continue reading Cummins ISX Engine SpotlightDiesel Engine Serial Numbers
Have you ever thought much about your ESN or why you might need to know it? Diesel engine serial numbers are vital to ensuring you’re getting the right fit for your engine.
Continue reading Diesel Engine Serial NumbersBoost Profitability with Employee Training
In recent Highway and Heavy Parts business polling, employee retention and managing cash flows were the top concerns listed by nationwide repair shops.
How to Reduce Repair Shop Turnover
Simply stated, no one takes a job and immediately thinks about how they’re going to quit. Typically new hires are excited, eager to start working, and are ready to learn. Yet, according to the Bureau of National Affairs, $11 billion is lost due to employee turnover on an annual basis. That’s a lot of turnover, and that’s a lot of coin.
Continue reading How to Reduce Repair Shop TurnoverNavistar Diesel Engine Serial Numbers
At some point in time, you’ll probably need to know where the engine serial number is on your Navistar engine. Having this number can help ensure that you’re getting the correct diesel engine replacement parts when you shop.
Continue reading Navistar Diesel Engine Serial NumbersDetroit Diesel Engine Serial Numbers
When shopping for parts for your diesel engine, you want to make sure you’re getting the right ones the first time. One thing that can help ensure you get the right fit is your engine serial number.
Continue reading Detroit Diesel Engine Serial Numbers
