MAHLE Tech Tip: How A Turbocharger Can Be Damaged

Tech Tip: How A Turbocharger Can Be Damaged

A turbocharger is a complex unit with precisely matched components.

Damage signs on the turbocharger are usually the result of one of the following causes:

• If there is insufficient lubrication, the bearings will fail and the compressor and turbine wheels can grind against their housings.

• Contaminated oil leads to score marks on shaft journals and bearings. Oil boreholes and seals can become clogged and cause insufficient oil supply. 

• Foreign bodies that enter through a defective air filter can damage the turbine or compressor wheels. The resulting unbalance damages the turbocharger bearing. 

Handling Replacement Turbochargers

A turbocharger is a complex unit with precisely matched components. When handling a turbocharger, remember: 

• Do not modify the turbocharger. The design is optimized for a specific engine type. For this reason, no adjustments or modifications should be made. For example, if the boost pressure increases, it may cause the engine to overheat, resulting in damage to the pistons, cylinder head, or engine mounts. 

• Use the correct engine oil. It’s critical to remember when changing the oil to only use engine oil recommended by the manufacturer. Any deviation in viscosity may cause incorrect lubrication and damage the turbocharger.

Courtesy of MAHLE

You May Also Like

Beyond the Warranty

What does it take to keep a car going for 120,000, 180,000 or 250,000 miles? The key is maintenance and inspection. 

Step up maintenance to go farther

What happens after the bumper-to-bumper warranty and powertrain warranty wear out? If you look at any factory-recommended service intervals, after 100,000 miles they cease to exist.

What does it take to keep a car going for 120,000, 180,000 or 250,000 miles? The key is maintenance and inspection. 

Misfire Codes P0300, P0301-P0312 and P0313+P0314

The only way to clear the code is to use a crankshaft position relearn with a scan tool.

What Caused The Turbo To Fail?

Up to 50% of turbocharger failures are due to oiling problems.

Valve Lifter Technology

Hydraulic lifters are precision-fit assemblies.

Supercharger Pros And Cons

Customers generally look to superchargers for the instant throttle response, not fuel economy.

Other Posts
It’s Got Spark!

Why can’t you trust some spark tests?

Ford 3.5L EcoBoost Turbocharger Oil Leaks

Ford has revised the service information for the inspection and pinpoint tests of the turbocharger and oil lines.

Turbocharger Maintenance ft. Rein TechSelect Turbo Kits

Learn about common challenges with turbocharger maintenance and how Rein TechSelect Turbo Kitsmake the repair process easier for technicians.

Belts and Pulley Alignment

A misalignment of the plane of the belt can occur when a pulley is not parallel to the other pulleys on the belt drive system.