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Posted on February 18, 2021 by David Ley

How Does a Cylinder Head Work On A Diesel Engine?

Today we’re going to go over a little bit about cylinder heads. Before diving head first into the cylinder head market, its important to have an understanding of what you’re working with.

Posted on February 17, 2021 by David Ley

What Caused A Crack In My Diesel Engine Cylinder Head?

We know how frustrating it can be when your cylinder head cracks. You’re losing coolant, have compression in your cooling system, or seeing excessive smoke, and you’re looking at lost time and money and an expensive repair.

Posted on February 16, 2021 by David Ley

When Can I Reuse My Cylinder Head Bolts? How To Clean And Inspect

Head bolts might seem like a minor or unimportant part, but without them, combustion wouldn’t be possible and your diesel engine wouldn’t work. They hold your cylinder head to the engine block and help the head gasket to seal properly.

Posted on February 16, 2021August 14, 2025 by David Ley

When Does Your Cummins N14 Need A Rebuild?

We know that rebuilding your engine is a time consuming and expensive process. And that’s not even mentioning the profits you lose when your engine is out of commission.

Posted on February 4, 2021 by David Ley

Actuator Not Moving? Engine Losing Power? Common VGT Turbo Questions

Today, we’re taking a look at some of your questions from YouTube relating to issues with your Variable Geometry Turbochargers.

Posted on January 1, 2020 by David Ley

How Do Variable Geometry Turbochargers Work In Diesel Engines?

Turbochargers are complicated and extremely precise pieces. They are used in diesel engines to get additional power, increased throttle response, and improve fuel economy. Variable geometry turbochargers or VGTs for short have additional vanes that move according to the specific demands of the engine at any given time.

Posted on January 1, 2020 by David Ley

Diesel Engine Turbochargers. Rebuild With A Cartridge Or A New One?

Diesel engines are complicated, especially modern ones. There is no doubt that at one point or another, you’ve come to a time where a major component such as a turbocharger has failed. Luckily, DFI is here to help get you through the stress with ease, should it happen again.