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In the diesel world, "blow-by" is a term you're bound to run across at some point if your line of work involves diesel-powered vehicles of any kind. What is blow-by, what causes it, and how concerned should you be? At National Brake & Muffler in Griffin, GA, our fleet maintenance and diesel technicians see it on a regular basis. Here we'll take a quick look at blow-by, correcting it, and preventing it.

What is Blow-By? - Diesel blow-by is a term that describes an event of lost compression into the crankcase. Blow-by occurs whenever a burnt or unburnt fuel and air mixture escape from the cylinder and past the piston rings and into the crankcase. In a perfect world, the piston would be sealed tightly in the cylinder, able to move up and down but keeping all the air and fuel and exhaust that enters or exits the cylinder during the combustion process out of the crankcase. As you'll see, this perfect world doesn't exist, but it is important to minimize the amount of blow-by in a diesel engine.

Manual transmissions require far less maintenance than automatics. However, that doesn’t mean it doesn’t need a fluid check from time to time. Here’s what you should know about checking and adding fluid to your manual transmission, from National Brake & Muffler in Griffin, GA.

drive belts

Your drive belts run everything - your AC, power steering, alternator, and water pump are all dependent on the belts that turn them. At National Brake & Muffler in Griffin, GA, our goal is to keep your truck maintained, so you’re never stuck out on the road. Drive belts are a critical part of that goal.

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Every year, more and more trucks come equipped with turbochargers. What was once a novelty or a performance option has become increasingly common as stock equipment. What are they for, and how do they work? National Brake & Muffler in Griffin, GA is here to help.

mechanic holding tools

A huge part of what the hydraulic system in your transmission does is tell the mechanical components what to do and when to do it. Even if you don't understand how that works, our technicians at National Brake & Muffler in Griffin, GA have trained with the best to make sure they understand all the ins and outs of your system. We want you to understand what we're talking about when we talk to you about your vehicle so we'll break down some aspects of your hydraulic system. 

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The turbo on your diesel pickup is a precision-engineered component. As a result, proper maintenance is essential to keeping it going strong. At tens or even hundreds of thousands of RPM, keeping everything in good shape is absolutely necessary. Fortunately, turbos don’t really require any special maintenance - they just make the maintenance you do all the more important.

RPMS on a car

Your transmission’s shift points are exactly what you think they are - the points at which your transmission shifts. From the transmission experts at National Brake & Muffler in Griffin, GA, here’s what you need to know about them.

Turbo

Most commercial diesel engines these days are turbocharged. Turbos dramatically increase power and efficiency, particularly on diesel engines, which makes them a must-have item on engines that rely heavily on both. However, sometimes issues arise in turbo systems; at National Brake & Muffler in Griffin, we can fix that.

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