Top tips to avoid a turbocharger horror story this Halloween

Turbochargers have become essential to manufacturers seeking to build engines smaller but with similar or higher power delivery to meet emissions requirements.

This has inherently led to more turbo-related faults arriving at the hands of technicians, and Melett product manager Tom Wright has several top tips for best practice to avoid scary costs for garages and their customers.

“As over 90% of turbocharger failures are consequential of other on-vehicle issues, getting to the bones of the problem and identifying the root cause before fitting the new turbo is key.

“Oil contamination is one of the top killers of a turbocharger and can happen in various ways. When fitting a turbocharger, if the oil system is not serviced correctly, debris from the previous failure can remain in the system, which can contaminate the new oil and cause premature turbo failure within minutes,” Wright says.

To avoid failure through insufficient lubrication or oil contamination, oil inlet pipes should be inspected, cleaned or preferably, replaced to remove carbon deposits or sludge that could restrict oil flow and/or contaminate the new oil. In addition, in all installations of a turbocharger, priming the oil feed and oil systems is a must, as this will prevent the turbo from instant failure through a lack of lubrication caused by a delay in the delivery of oil.

Modifying driving style can prolong the life of the turbocharger and other vehicle components. This is as simple as allowing time for the engine and turbocharger to warm up before accelerating hard and cool down before switching off.

“If a turbo has been worked hard then operating temperatures will be considerably higher. It’s important to allow the turbo time to cool, as shutting the engine off immediately after a spirited drive can cause the oil to carbonise within the turbo.” Wright adds.

Driving style also impacts the operation of the diesel particulate filters (DPF), which have been compulsory to fit to diesel vehicles since 2009. In turbocharged, diesel-powered vehicles, it’s important for drivers to perform regular longer journeys to allow DPF regeneration to occur successfully. This can be done via a 10-15 minute journey on a motorway at mid-high revs.

A blocked DPF prevents exhaust gas passing through the exhaust system at the required rate. As a result, back pressure and exhaust gas temperatures increase within the turbine housing of the turbocharger.

“Increased exhaust gas temperature and back pressure can affect the turbocharger in a number of ways, including problems with efficiencies, boost levels, oil leaks, carbonisation of oil within the turbo and exhaust gas leaks from the turbo,” Tom Wright explains.

“It’s therefore important that technicians maintaining, and servicing diesel-engine cars pay attention to the condition of the DPF in the event of turbo failure to prevent premature failure of the new turbocharger.”

Just as with the exhaust system, any blockages, restrictions, leaks or contaminants in the air intake system will impact the turbochargers performance and could lead to failure.

“It’s recommended that the air filter is replaced annually to ensure that dirty air passing through the turbo is minimised. Contaminated air with pollutants, dust and debris can lead to poor performance and foreign object damage to the compressor. Blocked or restricted filters can lead to incorrect pressures in the compressor housing and therefore oil leaks, which can lead to failure,” Wright concludes.

The best repair – quality over cost

Whether you repair or replace a customer’s faulty turbo charger, it’s vital you opt for quality over cost.

The automotive turbocharger market is estimated to grow at a compound annual growth rate of 10.5% over the next five years, which means it is now predicted to reach USD 18.4 billion by 2025 from USD 11.1 billion in 2020, according to a market report published by MarketsandMarkets.

As the drive towards greater engine efficiency results in more and more vehicles employing turbochargers, garages are increasingly faced with addressing these complex components.

Melett, an aftermarket brand for precision engineered turbochargers and parts, is encouraging independent garages to choose their turbo repair partners carefully as they look to meet increased demand.

Read more on page 49 of the September 2021 edition of Professional Motor Mechanic: September 2021 – Professional Motor Mechanic (pmmonline.co.uk)

[Source – Professional Motor Mechanic, September 2021 –  September 2021 – Professional Motor Mechanic (pmmonline.co.uk)]

How does Foreign Object Damage cause turbocharger failure? 🎥

View our latest Melett Turbo Tips video –

How does foreign object damage (FOD) cause turbocharger failure?

During this video we will be analysing what causes foreign object damage, show you the signs of foreign object damage and how you can prevent turbocharger failure caused by foreign object damage.

Click below to view our Foreign Object Damage Turbo Tip video…

Find out more information on our turbo related topics on our dedicated turbo tips pages:

Common Turbo Failures

Why Do Turbo Failures Occur?

Keep an eye out on the Melett Video Library for upcoming Turbo Tips Videos and much more!

Ever wondered how Melett turbocharger parts are manufactured?
Interested in the detailed design analysis involved in producing a Melett Turbocharger?
Check out our informative videos to find out all about Melett precision engineered turbochargers and parts and to better understand why our customers choose us again and again.

https://www.melett.com/video/

How does Overspeeding cause turbocharger failure? 🎥

View our latest Melett Turbo Tips video –

How does Overspeeding cause turbocharger failure?

During this video we will be analysing what causes overspeeding, show you the signs of overspeeding and how you can prevent turbocharger failure caused by overspeeding.

Click below to view our Overspeeding Turbo Tip video…

Find out more information on our turbo related topics on our dedicated turbo tips pages:

Common Turbo Failures

Why Do Turbo Failures Occur?

Keep an eye out on the Melett Video Library for upcoming Turbo Tips Videos and much more!

Ever wondered how Melett turbocharger parts are manufactured?
Interested in the detailed design analysis involved in producing a Melett Turbocharger?
Check out our informative videos to find out all about Melett precision engineered turbochargers and parts and to better understand why our customers choose us again and again.

https://www.melett.com/video/

How does Insufficient Lubrication cause turbocharger failure? 🎥

View our latest Melett Turbo Tips video –

How does insufficient lubrication cause turbocharger failure?

Insufficient lubrication is also known as oil starvation or lack of lubrication. During this video we will be analysing what causes insufficient lubrication, show you the signs of insufficient lubrication and how you can prevent turbocharger failure caused by insufficient lubrication.

Click below to view our Insufficient Lubrication Turbo Tip video…

Find out more information on our turbo related topics on our dedicated turbo tips pages:

Common Turbo Failures

Why Do Turbo Failures Occur?

Keep an eye out on the Melett Video Library for upcoming Turbo Tips Videos and much more!

Ever wondered how Melett turbocharger parts are manufactured?
Interested in the detailed design analysis involved in producing a Melett Turbocharger?
Check out our informative videos to find out all about Melett precision engineered turbochargers and parts and to better understand why our customers choose us again and again.

https://www.melett.com/video/