Heavy Duty Diesel Engine Tech Tips & How To Help

Dec
11
2018

How to Install a Diesel Engine Cylinder Head

How to Install a Diesel Engine Cylinder Head It's no small undertaking to replace your cylinder head, and it only makes sense that you want it done correctly. Ensure yours is properly...

Dec
6
2018

Diesel Engine Cylinder Head Buying Guide

Cylinder Heads: HHP Buying Guide When's the last time you thought about your cylinder head? If you've noticed a decrease in fuel economy or your engine has been overheating, you might want...

Dec
4
2018

Signs You Need to Replace Your Cylinder Head

Signs You Need to Replace Your Cylinder Head   Just What is a Cylinder Head? A cylinder head is a critical part of your engine. With the head gasket and cylinder itself, it...

Nov
29
2018

Diesel Engine Failure Analysis: Compression Issues

Diesel Engine Failure Analysis: Compression Issues   As we talked about in an earlier post , there are many things that could lead to an engine failure or the need for an engine...

Nov
27
2018

Diesel Engine Break-in Guide

Diesel Engine Break-in Guide Have you been considering an engine rebuild but aren't sure where to start? Is your engine still giving you trouble after a recent rebuild and you don't know...

Nov
21
2018

Diesel Engine Failure Analysis: Fuel Contamination

Diesel Engine Failure Analysis: Fuel Contamination Are you experiencing low power or poor fuel economy? Do you find yourself replacing filters more often, or have you noticed smoke coming...

Nov
20
2018

How to Prepare Your Diesel Truck for Winter

How to Prepare Your Diesel Truck for Winter Winter is rough on all vehicles, whether they’re driving on the road, exploring off the road, or sitting in the yard. However, it seems...

Nov
15
2018

How to Choose an Engine Rebuild Kit

How to Choose an Engine Rebuild Kit An engine rebuild is a large and expensive job, and choosing the right kit can seem a daunting task. There are a lot of kits for sale, and they may all...

Nov
13
2018

Signs Your Engine May Need a Rebuild

Signs Your Engine May Need a Rebuild In an earlier post, we took a look at some symptoms of common diesel engine problems . But did you know that sometimes those symptoms could indicate...

Nov
8
2018

The Difference between OEM and Aftermarket Rebuild Kits

The Difference between OEM and Aftermarket Rebuild Kits So, let’s start off admitting that we obviously have a strong preference in the OEM versus aftermarket debate. But our...

Nov
6
2018

Common Diesel Engine Problems

Common Diesel Engine Problems It's unlikely that you'll never have a problem with your diesel engine. But when one occurs, you want to get back on the road as quickly as possible. Being...

Nov
1
2018

Diesel Engine Rebuild Kits Buying Guide

Diesel Engine Rebuild Kits: HHP Buying Guide Have you noticed a loss in fuel economy? Are you consuming a lot of oil? Is there coolant in your crankcase? If you answered yes to any of...

Oct
30
2018

The Camshaft Reconditioning Process

The Camshaft Reconditioning Process There are a few parts that you see as many (or more) remanufactured options for as new. Camshafts are one of these parts. That’s because camshafts...

Oct
25
2018

Camshaft Failure: Camshaft Bearings

Camshaft Failure: Camshaft Bearings It's not just camshafts that can wear or fail—the camshaft bearings can have issues as well. Bearing failure can cause extensive damage to other engine...

Oct
23
2018

Camshaft Bearing Facts and Installation

Camshaft Bearing Facts and Installation As we discussed in a previous post, Camshaft Bearings Explained , a camshaft bearing is meant to reduce the amount of friction on your camshaft...

Oct
18
2018

Camshaft Failure Analysis: What Causes Excessive Lobe Wear?

Camshaft Failure Analysis: What Causes Excessive Camshaft Lobe Wear? We all know how important camshafts are to the function of your engine, and when they fail it can spell trouble....

Oct
16
2018

Camshaft Bearings Explained

Camshaft Bearings Explained In its most basic form, bearings are meant to reduce friction—that's what they do for your camshaft. They keep it rotating where it should be and help...

Oct
11
2018

OEM vs. Aftermarket Diesel Camshafts

OEM vs. Aftermarket Diesel Camshafts So you're looking for a new camshaft. Maybe you think an OEM part is the only way to go. Maybe you've heard horror stories of inferior aftermarket...

Oct
9
2018

How to Install a Diesel Engine Camshaft

How to Install a Diesel Engine Camshaft The camshaft. Its health is vital to the overall function of your engine, so it's important to know how to properly install it. Improper install...

Oct
4
2018

HHP Buying Guide: Camshafts

HHP Buying Guide: Camshafts Do you want good engine power? Great fuel economy? I think it's fair to assume we all do. Well, the camshaft plays a big role in whether or not you're...

Oct
2
2018

How Do I Know if My Camshaft is a Good Core?

How Do I Know if My Camshaft is a Good Core? When purchasing a camshaft, one question that often comes up is whether or not your old cam will be accepted as a core. The part can only be...

Sep
27
2018

Crankshaft and Engine Bearing Installation Guidelines

Crankshaft and Engine Bearing Installation Guidelines Proper crankshaft function hinges on a correct installation. Don't just guess when installing yours. Follow these easy steps to help make...

Sep
18
2018

Failure Analysis: How Can My Crankshaft be Bent?

Failure Analysis: How Can My Crankshaft be Bent? A Crankshaft Failure Analysis It keeps your engine moving and is vital to the overall health of your rig. So when something goes...

Sep
11
2018

America Runs on Diesel

America Runs on Diesel Do you ever stop and think about where our things come from? Not how they're made or grown, but how they literally arrive for our consumption. If you're in the...

Sep
4
2018

September Featured Products

September Featured Products It’s time for September’s featured products! This month, we’re featuring crankshafts. These important parts are a driving force in your engine, and it’s...

Aug
20
2018

Why Aftermarket Oil Pumps Hold Their Own

. Why Aftermarket Oil Pumps Hold Their Own Look, we get it. Your truck is your livelihood, and its health directly affects whether or not you can pay your bills. That’s why you may be...

Aug
13
2018

The Causes of Oil Pump Failure

The Causes of Oil Pump Failure Oil pumps are critical to the mechanics of the rest of the engine. Without proper oil circulation, the moving parts of the engine cannot work properly....

Aug
6
2018

August Featured Products

August Featured Products If an engine were a living creature, oil would be its blood; it’s necessary to keep every moving part of the engine functioning. Without a proper oil flow, no parts...

Jul
3
2018

July Featured Products

July Featured Products It’s July, and a new month means new featured products! This month we’re featuring hydraulic pumps! If your engine has hydraulics, you know the pump is the heart of...

May
21
2018

More than the OEM: Know Your Turbo Options

More than the OEM: Know Your Turbo Options OEM Turbochargers There’s no doubt that the OEM’s designed some pretty decent turbos in their day, and that some especially still do...

May
14
2018

Signs You Should Have Your Turbocharger Serviced

Signs You Should Have Your Turbocharger Serviced Depending on what kind of engine you have, servicing your turbo can get expensive fast. That’s why, if you don’t notice your engine acting...

May
7
2018

May Featured Products

May Featured Products Everybody loves a good turbocharger, and that’s why turbos are May’s featured part! Highway and Heavy Parts has a wide selection of turbos, so you can replace your...

Apr
23
2018

Gasket Damage: Thermal Push from Detonation

Gasket Damage: Thermal Push from Detonation What is Thermal Push? Thermal push is a type of gasket damage where the armored, cylinder bore edges of head gaskets become deformed from...

Apr
16
2018

How Aftermarket Gaskets Can Save You Time and Money

How Quality Aftermarket Gaskets Can Save You Time and Money Not all gaskets are created equally, and that is proven with Highway and Heavy Parts’ quality aftermarket gaskets . With the...

Apr
9
2018

Gasket Installation Mistakes to Avoid

Gasket Installation Mistakes to Avoid We’ve all fallen victim to common mistakes before. Whether it’s minor traffic errors (yes, left turners always yield ) or any of the following...

Apr
2
2018

April Featured Products

April Featured Products Gaskets are often overlooked, since they’re not a big, expensive performance part that adds horsepower to your engine. However, anyone that’s had failing or blown...

Mar
7
2018

HHP Announces the Winner of the HHP Prize Pack!

Congratulations to Scott Cross for winning the Yeti Roadie with HHP Swag! We'd like to give a HUGE thank you to everyone who entered! We appreciate your support and feedback, and look...

Jan
29
2018

Are the OEM Rebuild Kits Worth It?

Are the OEM Rebuild Kits Worth It? If you’ve heard of Highway and Heavy Parts, you probably know we sell aftermarket diesel engine parts. But do you know the difference between aftermarket...

Jan
8
2018

January Featured Products

January Featured Products Happy 2018! A new year at HHP means a new focus, and this January we’re focusing on our rebuild kits and the parts in them. To kick off the month, let’s go over...

Nov
29
2017

5 Easy Ways to Improve Fuel Economy

5 Hacks to Boost Fuel Efficiency There’s no denying that diesel prices have been a tad high lately , and while they may have come back down, they’ll probably go up again. It...

Nov
22
2017

Cummins ISX Engine Spotlight

Cummins ISX Engine Spotlight The History of Cummins The huge company that is Cummins was founded almost a century ago in 1919 by Clessie Cummins. Cummins partnered with J. Irwin...

Nov
15
2017

Anti-Polishing Rings (APR) Explained

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...

Nov
8
2017

Diesel Engine Serial Numbers

Engine serial numbers are specific numbers assigned to every individual engine. No engine that exists has the same serial number as another engine. If you know you engine serial number, you...

Nov
1
2017

Navistar Diesel Engine Serial Numbers

How to Find a Navistar Engine Serial Number The engine serial number for Navistar engines can be found stamped on a pad on the block. Navistar keeps the location pretty simple. For...

Oct
27
2017

Detroit Diesel Engine Serial Numbers

How to Find a Detroit Diesel Engine Serial Number While most OEM’s are pretty irregular, Detroit Diesel is probably the least consistent OEM about the placement of their engine...

Oct
20
2017

Cummins Diesel Engine Serial Numbers

How to Find a Cummins Engine Serial Number Cummins engines will have the engine serial number on the dataplate. The dataplate on an engine can be a great reference because it will...

Oct
4
2017

Caterpillar Diesel Engine Serial Numbers

How to Find a Caterpillar Engine Serial Number Most engine serial numbers can be found on the dataplate, which is typically on the driver side of the valve cover. As you’ll see later...

Sep
15
2017

Adjusting Diesel Engine Injection Timing

Injection Timing Basics We often get all kinds of calls asking for technical advice, from both owner-operators trying to troubleshoot a problem with their truck to repair shop mechanics who...

Aug
30
2017

Excessive Oil Consumption Explained

What is Excessive Oil Consumption? Excess oil consumption is any oil consumption above an acceptable range during normal operating conditions. Each engine will have a natural and acceptable...

Aug
23
2017

Order Shipping Guide

Shipping facts seem to be pretty simple. After all, if you choose 2 Day Shipping your order should get to you in 2 days, right? Unfortunately, a lot of people make similar assumptions when...

Aug
15
2017

Diesel Engine Break-In Explained

We often get calls about the break-in procedure of a newly-rebuilt engine. Proper break-in is critical and sometimes overlooked. Even though you may have used one of our outstanding overhaul kits...

Aug
10
2017

HHP New Product Releases: August 2017

Highway and Heavy Parts is excited to announce the addition of several oil pans to our product offering These new oil pans fit Mack, Cummins, Navistar, and Detroit Diesel engines. Having a good...

Aug
3
2017

Liner & Piston Update for ISX Engines

Cummins has been producing the ISX engine since it replaced the N14 in 2001. In those years, many improvements have been made to the designs of both the pistons and the cylinder liners....

Jul
28
2017

Caterpillar 3406E Engine Spotlight

The History of Caterpillar About a century and a half ago, steam tractors were used as the primary tool in agricultural development. These giant tractors worked great in most areas of...

Jul
21
2017

Liner Failure Analysis

A. Cylinder kit failure caused by twisted liner o-ring The picture shows one of the liner o-rings that twisted during assembly in engine.      ...

Jul
12
2017

Cummins ISX Rebuild Kits from HHP

Here at HHP, we’re pretty proud of the rebuild kits we offer. So, we’re going to use this article to brag a little bit about our rebuild kits that fit various Cummins ISX engines....

Jul
5
2017

Valve Train: Function, Components, and Repair Options

The valve train of any type of engine is a fairly complicated system that often causes confusion to those without a large amount of engine knowledge and experience. While this article...

Jun
27
2017

Detroit Diesel Series 60 Engine Spotlight

The History of Detroit Diesel Detroit Diesel was once associated with General Motors, during which time it was called the General Motors Diesel Division. For several years, GM had cornered...

Jun
13
2017

C15 Engine Spotlight

The History of Caterpillar In the late 1800’s and early 1900’s, steam tractors were the primary method of agricultural development. But out in California, they had a problem: the...

Jun
6
2017

What Are Fuel Injector Trim Codes?

Trim codes or trim files are codes that go into an Electronic Control Module (ECM) that determine how long a fuel injector injects fuel into a cylinder for. Trim codes only apply to...

May
23
2017

How does a Variable Geometry Turbocharger work?

Variable Geometry in Diesel Engines Variable geometry is a fancy term for “extra moving parts.” Unless you fly aircrafts, variable geometry will always refer to certain turbochargers (VGTs,...

May
16
2017

“What is a core charge and why do I have to pay it?”

What 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...

May
9
2017

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...

May
2
2017

The Pros and Cons of Aftermarket Diesel Engine Parts

HHP's look at the pros and cons of using aftermarket diesel engine parts. Here at Highway and HeavyParts we sell aftermarket diesel parts . An aftermarket part is any part not...

May
1
2017

Apr
25
2017

Reusing Pistons to Save Money: The Benefits and Drawbacks

Rebuilding an engine on a Class 8 truck is a costly procedure. Depending on how extensive the repairs, the parts alone can range from fifteen hundred to fifteen thousand. One option for reducing...

Apr
18
2017

Rebuild Cylinder Head vs Remanufactured Cylinder Head

Rebuilt Head or Remanufactured Head? When the cylinder head in your diesel engine reaches the end of its useful life, you have an important decision to make, and you only...

Apr
11
2017

Camshafts: Replace or Not to Replace?

Camshafts – To Replace or Not to Replace? That is the Question So, you have 1,000,000 plus miles on your engine and you’ve decided it’s time for a rebuild. Some parts...

Apr
4
2017

Common Turbo Problems & Failures

  Common Turbo Problems / Failures     Compressor Side Leaks   Plugged air cleaner :   This will cause a vacuum to build in...

Mar
28
2017

What goes into a Remanufactured Cylinder Head from HHP?

The Cylinder Head is on of the most important pieces of your engine, and engine repairs due to a faulty cylinder head are time consuming and expensive. So, what goes into one of HHP's...

Nov
19
2015

Piston Pin Retainers Failure Analysis

A. Piston pin retainer improperly installed

The pin retainer came loose, severely damaging the cylinder kit.

 

 

 



Nov
19
2015

Piston Rings Failure Analysis

A. Broken oil control ring caused by assembly error The following picture shows the broken oil control ring positioned on a granite flat surface. Note the upward bend on the broken...

Nov
19
2015

Connecting Rod Failure Analysis

A. Cylinder kit failure from lack of proper lubrication The first two pictures show the spun connecting rod bearings.   The next picture shows the lower part...

Nov
18
2015

Piston Pin Failure Analysis

A. Piston pin failure caused by lack of lubrication
Lack of proper lubrication is cause of the galled and worn piston pin.

Nov
18
2015

Piston Skirt Failure Analysis

A. Piston skirt on upside down The following picture shows the piston skirt in the liner with the skirt on upside down. Red arrows point to bottom of skirt.  ...

Nov
18
2015

Piston Crowns Failure Analysis

A. Piston damaged by adding cold coolant to a hot engine       B. Piston failure caused by overheat and detonation Cylinder kit...

Nov
18
2015

Rod Bearings Failure Analysis

A. Bearing failure caused by foreign material on the back of the bearing The next two pictures show a rod bearing with a piece of tape or paper on the back of the bearing where it...

Nov
18
2015

Main Bearings Failure Analysis

A. Bearing failures caused by lack of proper lubrication Notice the extremely polished condition of the bearings with the worst streaking toward the center of the bearing. This is...

Nov
18
2015

Valve Bridges Failure Analysis

B. Valve failure caused by turned valve bridge Complaint: Valve head came off damaging cylinder kit and head. The first picture shows the valve head. The valve broke in the...

Nov
18
2015

Valve Keepers-Retainers Failure Analysis

A. Valve failure caused by impact loading The following pictures shows material returned. The yellow arrow pointing at the valve retainers show they are undamaged. The rotators...

Nov
18
2015

Valve Guides Failure Analysis

A. Valve and valve guide wear caused by poor maintenance  The first two pictures show the wear in the lower part of the valve guide closest to the valve head. The second picture...

Nov
18
2015

Valves Failure Analysis

A. Natural gas engine valve failure The first picture shows two valves with extreme recession. The following is by Lloyd Leugner of Maintenance Technology...

Nov
17
2015

Oil Pump Failure Analysis

A.  Oil pump failure caused by improper installation The pictures show the surface area where the pump interfaces with the block. Note the buildup of lock tight in these locations...

Nov
17
2015

Piston Cooler Failure Analysis

A. Piston cooler failure caused by contamination in the oil system Contamination left in the oil system from an engine overhaul plugged the piston cooler and caused the...

Nov
17
2015

Seals Failure Analysis

A. Seal failure caused by installation error The following two pictures show two locations on the seal that are damaged and provide a leak path for oil. The cause of failure, oil...

Nov
17
2015

Block Gaskets Failure Analysis

A. Gasket failure caused by assembly errors – use of sealant/glue Complaint: Oil pan gasket leaks and comes apart. The following pictures show the oil pan gaskets were...

Nov
17
2015

Head Gaskets Failure Analysis

A. Gasket failure caused by detonation The first picture shows the damage to the fire ring on #4 cylinder of the returned head gasket. Note: the condition of the fire ring in...

Nov
17
2015

Piston Seizure Quick Reference

Quick Reference Guide Piston seizures will only occur when metal-to-metal contact between the piston, rings to liners exists. Thermal expansion and/or lack of lubrication are...

Nov
4
2015

Snacks to Keep You Alert When Driving

Fatigue can set in when truck driving. Often times, what you eat contributes to your alertness on the road. Some snack options might surprise you with their high drowsiness factor. High glycemic...

Nov
4
2015

Safe Winter Truck Driving Tips

Be safe. Stay safe. It’s time to prepare for the changes to your driving that you’ll need to make in response to winter weather and adverse conditions. Plan: Prepare...

Oct
29
2015

Turbocharger Failure Diagnostic Checklist

Turbocharger Failure Diagnostic Checklist   The following list provides the most common symptoms related to turbocharger failure and possible causes. Before replacing your...

Oct
21
2015

How to Get Better Fuel Economy with your Diesel Truck

Diesels are known to get great mileage. They typically deliver 25 to 30 percent better fuel economy than similarly performing gasoline engines. Although diesel fuel used to be cheaper than...

Oct
21
2015

Track Tension Adjusting and Maintenance Tips

Adjusters are designed to absorb shock, provide proper track tension and protect track systems and idlers.  It’s critical to maximize track life by maintaining proper track...

Oct
15
2015

Common Diesel Acronyms

Common Diesel Acronyms   Term Comments Term Comments ACERT Advance Combustion Emission Reduction...

Oct
8
2015

Flywheel versus Flexplate

  Flywheels and flexplates have similarities, but are not the same. Often referred to as being the same part, flywheels and flexplates help accomplish the same task, but in different...

Oct
7
2015

Preventing Premature Cam Bearing Failure

    For many years, nearly all camshaft bearings were manufactured with a lining of babbitt. Babbitt is a soft slippery material made up primarily of lead and tin and is...

Sep
21
2015

Oil Cooler Benefits

The oil cooler is not typically a component that goes bad, but should be replaced after any catastrophic engine failure. The best way to protect a new engine investment is to put in a new...

Aug
4
2015

Ways to Keep Your Turbocharger Healthy

Turbo chargers are a key component of a diesel truck. Turbos produce higher power outputs and improve the efficiency of the engine, not to mention they are extremely exhilarating! They are...

Jul
8
2015

5 Tips to Help Your Diesel Engine Live Longer

There are many great ways to help your diesel engine have a long life. Taking care of your diesel engine does not take too much effort, but it does require some attention. Here are 5 tips to keep...

Jun
25
2015

5 Easy Ways to Improve Fuel Economy

There are more than a few ways you can improve the fuel economy of your diesel truck. Upgrading your fuel injectors or replacing your worn turbocharger will have a great impact on your fuel...

Feb
9
2015

N14 Piston Skirt Design Change

Cummins made a change to their N14 piston skirt design. As Cummins doesn't sell the skirt separately, they didn't give the skirt a part number. Cummins only sells the skirt as part of a complete...

Jan
7
2015

DT466E and DT530E Liner O-ring Change

Near the end of 2004 International Navistar made a change in the DT466E and DT530E cylinder liner o-ring configuration. They moved from the "old" style liner that used both an o-ring and crevice...

Dec
18
2014

Engine Sleeve / Liner Pitting Explained

I'm sure everyone out there religiously takes oil samples at every change so you'll know if you have a drop of coolant in your oil, Right? Yeah, Right! So, here's a couple of more likely...

Dec
4
2014

Detroit Diesel 14L New Piston Design

Detroit Diesel has released a new piston design for use in current and older model Series 60 14L engines. The new piston has a longer skirt and a new design to the 2nd compression ring. The new...

Nov
13
2014

3406E / C15 Fuel in Coolant, Engine Miss Explained

Caterpillar 3406E, C15, & C15 Acert engines all use the same style cylinder head, injectors, and injector cups (see images 1 & 2). The injector on these engines seats directly against the...

Oct
17
2014

Broken or Cracked Cylinder Liner Flange

Cylinder liner flange and flange seat The cylinder block has circular, plane recesses, called flange seats or counterbores. These hold the cylinder liners in the cylinder block. The...

Sep
26
2014

Detroit Diesel Series 60 Top Liner Cooling

Many people have heard of Detroit Diesel Series 60 Top Liner Cooling or Top Cooled Liners, but don't know what it  really is. Here's a basic explanation: Starting with engine serial...

Jul
14
2014

Cummins N14 Inframe Rebuild Kit - Additional Items

This is a quick blog to share some inexpensive additional pieces you should think about changing when you rebuild your Cummins N14. The Cummins N14 is a strong, reliable engine that will just keep...

Jun
26
2014

Brake Air Compressor Troubleshooting - Simplified

The basics If you're reading this you probably already know at least a little something about brake air compressors. So we won't bore you with the simple stuff. What you really need to know is...

Jun
6
2014

Trucking Facts: Looking to the Future

Did you know, if you combined all of the cargo delivered by trucks last year, you would create a chain that would run from the earth to the Moon over eleven times? The above is one of several...

May
12
2014

Preventive Maintenance Inspection (PMI): Do it Properly to Increase Profits

Preventive Maintenance Inspection (PMI) is a simple way to prevent costly repairs and breakdowns and maximize uptime. Done properly, it's a great low-cost, high-reward practice, whether you...

Dec
26
2013

Proposed Category 11 Oil (PC-11): What It Means for the Heavy Highway Industry

Proposed Category 11 (PC-11): What It Means for the Heavy Highway Industry   Until now, oil changes have been rather routine maintenance procedures for diesel engine fleet owners,...

Oct
22
2013

Increase Profit with Remanufactured Injectors From HHP!

When it comes to running a highly profitable diesel engine repair shop, staying one step ahead of your competition is critical to success. With profit margins shrinking and customer demands...

Oct
6
2013

Boost Profits by Rebuilding Parts and Selling Labor

Though handling your shop’s day-to-day accounting operations might not be exactly what you have in mind when you walk into work in the morning, it certainly doesn’t hurt to have a firm...

Sep
15
2013

Reusing Pistons To Save Money. The benefits and Drawbacks

Rebuilding an engine on a Class 8 truck is a costly procedure. Depending on how extensive the repairs, the parts alone can range from fifteen hundred to fifteen thousand. One option for reducing...

Aug
25
2013

Rebuilt Head or Remanufactured Head?

When the cylinder head in your diesel engine reaches the end of its useful life, you have an important decision to make. You have two options:  Rebuilt...

Aug
4
2013

Camshafts – Replace or not to Replace? That is the Question.

So, you have 1,000,000 plus miles on your engine and you’ve decided it’s time for a rebuild. Some parts you know you have to replace but others you aren’t so sure about. Fuel...

Aug
1
2013

Highway and Heavy Tech Tips: Common Turbo Problems

Common Turbo Problems / Failures Highway and Heavy Parts (HHP) presents the latest in our tech tip blog series. This month we will cover lubricating oil in the turbocharger and external...