Tag Archives: Turbocharged Diesel Engine

Clean Oil Key to Keeping your Turbochargers in Top Condition

Do you feel that your diesel engine is not giving you top performance?  Your turbocharges may not be functioning properly due to damage from dirty oil.
Dirty oil damages the turbocharger by causing heavy scoring of critical bearing surfaces.
To avoid damage, oil and filter should be of a quality that is recommended by an OEM.  These should be changed when a new turbocharger is fitted by Western Turbo.  After that, regular oil and filter changes should keep your turbochargers in great condition.
Dirty oil damage could result from:
–  Blocked, damaged on poor quality oil filter
–  Dirt introduced during servicing
–  Engine wear or manufacturing debris
–  Malfunctioning oil filter by-pass valve
–  Degraded lubrication oil.
Regular maintenance by Winnipeg’s largest diesel service centre should keep your turbochargers spotless.  Western Turbo can set you up on a preventive maintenance program for your individual diesel or fleet requirements.  Whether you are in Winnipeg, or rural Manitoba, give us a call for you next service.

Why Did Your Turbocharger Die?

A turbocharger is simple in concept, but complex in operation.

In a nutshell, a turbocharger uses exhaust gases produced by the engine, which are pushed out of the engine at a velocity that corresponds with the speed of the engine’s rotation to push fresh air into the engine. The faster the engine “revs” the higher the volume and speed of the exhaust that escapes it is. Exhaust consists of air and the by products of fuel combustion (carbon monoxide, and a lot of other chemicals).

In a normally aspirated engine, air is taken in at atmospheric pressure. In a turbocharged engine, air is pushed in to the combustion chamber under pressure. Because the air is compressed, more fuel can be introduced into the engine while still maintaining the ideal mixture ratio between air and fuel. Simply put, being able to put more fuel into the engine results in more power.

Because the exhaust gases would be emitted anyway, harnessing them to increase performance also increases efficiency. The turbocharger plays a big role in making diesel engines the powerhouses that they are.

Unfortunately, the high temperatures and speeds involved in a turbocharger can be hard on it. The turbine is the component that hot exhaust gases push against to drive the unit. It’s subject to extremely high temperatures, and speeds up to 150,000 rpm. The compressor wheel “squeezes” air into the compression chamber. When air is compressed, it gets hot. Even at the “cool” end of the turbocharger temperatures can exceed 200 degrees Celsius.

The turbocharger needs a healthy supply of engine oil to lubricate its moving parts, and to help cool it. Often, an impediment to oil circulation and/or dirty oil, can cause the turbocharger to fail. In fact, short of component failure in the turbocharger, nearly every turbocharger failure is caused by something else in the engine not working correctly. Air and gas leaks, worn piston rings, clogged exhaust, carbon build-up and a hundred other things can cause turbocharger failure. When this is the case, simply replacing your turbocharger may appear to solve the problem, but it will likely reoccur in a relatively short time.

IAmDIESEL is the Diesel Service Centre at Western Turbo and Fuel Injection in Winnipeg. We’re the area’s premiere diesel service centre. If you’ve experienced a turbocharger problem, bring it to us. Because we understand diesel engines better than anyone else, we will diagnose and repair the root cause of your problem, not just the symptom.

Insist on OEM

It has been said that stock runs best. Simply put, low grade aftermarket parts are no particular bargain if they don’t perform properly or possess the same degree of longevity that original equipment manufacturer (OEM) parts provide. When it comes to your livelihood, as it pertains to your turbochargers, insist on OEM replacement parts purchased through a reputable source.

Most modern diesel engines are turbocharged. A turbocharger allows the engine’s horsepower and torque to be multiplied through forced air induction. Inside the turbocharger housing is both a turbine and an air pump. Both are driven using the same shaft. Spent exhaust gases, escaping the compression chamber, are used to drive a turbine at very high RPM. As the exhaust turns the turbine, the air pump impeller draws high-volume, low-pressure ambient air into the engine. The ambient air is drawn in through the front air-dam and the intercooler, in order to ensure that a steady source of cooler, denser air is available to the air pump. This additional air induction allows the engine to burn an increased amount of fuel, resulting in more horsepower and torque.

Why buy OEM Turbochargers?

Aftermarket turbochargers aren’t manufactured to the same stringent specifications as OEM one, neither are they made from the same top-quality steel and components. Turbochargers are by nature very powerful, yet they operate under very delicate circumstances. The turbine wheel and housing must be meticulously machined and assembled; tolerances between the impeller and housing can be well under several thousandths of an inch. Extreme temperatures from the exhaust, which drives the air pump, coupled with these very close tolerances demand that the turbocharger be designed, engineered, and manufactured to the most rigid guidelines. You just don’t get that type of quality anywhere but OEM for turbochargers.

The next time that you have a problem with your turbo diesel, trust the professionals at Western Turbo to provide you with quality parts and experienced, courteous service.