Aftermarket March 2023

MARCH 2023 AFTERMARKET 45 maintenance. Advising customers to use a professional additive such as the JLM Diesel Turbo Cleaner provides a significant long-term saving because it extends the life of the turbo. It also yields immediate savings in terms of improved fuel consumption. Following the initial treatment with the Turbo Cleaner further preventative treatments with the JLM Emission Reduction Treatment will help reduce contamination accumulating within the engine. This also benefits the function of the turbo.” Mike added: “If the turbo has failed, technicians must ensure that the replacement turbo is correctly lubricated at the point of installation. Failure to do this can result in the new turbo being starved of oil for a up to 30 seconds at first use. This ‘hidden’ damage can result in premature turbo failure further down the line. Using the JLM Turbo Pre Lube at installation prevents these problems, extends the life of the turbo and ultimately saves the motorist money in the long run.” For more information, visit: www.jlmlubricants.com Turbocharger installation Offering turbocharger installation best practice tips, Nissens Marketing Manager Jan Zieleskiewicz said preparation is key: “Before fitting a new turbo, always find out why the original unit failed because if the underlying cause is not identified and put right, the replacement will also fail and as a result will not be covered by any warranty claim. “Ask these questions; Does the intercooler leak? Is the particulate filter clogged? Are any of the hoses cracked? Does the EGR valve close properly? What is the state/condition of the engine oil, is there the appropriate oil pressure generated? Another important factor is to check whether the VM has issued a service bulletin for changing the turbocharger because certain cars require the replacement of specific parts or implementation of special procedures when the turbo is replaced. Ensure the new turbo, as with a Nissens unit, is of high quality and includes a gasket set. In addition, purchase any other necessary installation parts, such as the oil and air filter, oil, hose clamps and pipes, etc.” Then, you need to clean and examine: “Clean the area around the turbo before starting the disassembly and then carefully examine all the parts such as the intercooler, inlet/exhaust manifold, pipes, hoses, ventilation, air filter box, EGR, DPF, CAT, etc., that are in and around it for any faults, damage, leaks and impurities, and place all the screws and bolts into a dedicated box. Clean these parts as they are removed and if necessary, replace them, but take note that if the previous turbo breakdown was caused by seizure of the turbine/compressor wheel or foreign objects inside the turbo, the intercooler should always be replaced. However, always replace the O-rings, gaskets and hose clamps. Always use proper tools, so avoid using pneumatic tools, crowbars and hammers and never use liquid gaskets and exhaust gum when mounting the new turbo because it must be installed properly and with care. Prime the turbo’s shaft by injecting new engine oil into the turbo’s oil feed before mounting the oil feed pipe and rotating it ten times. Then measure the oil pressure at the turbocharger and check the oil flow before fitting the oil return. Then you need to connecting and test: “Once the turbo is in place, start the engine and while it’s at idle for a couple of minutes, inspect the entire system. Check that all the turbo connections are leak-proof (intake air, pressure, oil and coolant, if applicable) and inspect any suspicious Above: JLM Diesel Turbo Cleaner sounds. Ensure that there isn’t too much back pressure in the exhaust system and naturally repair any detected issues.” Jan concluded: “Connect test equipment and reset the fault before taking the car out for a drive to check if it runs correctly, and with the right boost pressure. For more information, visit: https://support.nissens.com/en/material/self- learning-course-turbocharger-component-installation Lubrication Commenting on how the LIQUI MOLY Turbocharger Additive can help run-in a newly fitted turbo, David Kaiser, Head of Research and Development at LIQUI MOLY observed: “If a new turbocharger is installed or the old turbocharger is repaired, the plain bearings are dry. When the engine is started and the turbocharger starts for the first time, the motor oil has not yet lubricated all bearings. Several 100,000 revolutions per minute without sufficient lubrication not only causes a sudden increase in wear, but can also lead to initial damage that drastically shortens the service life of the turbocharger. “In order to prevent this, LIQUI MOLY launched the Turbocharger Additive. The active ingredient combination in the tube contains the solid lubricant MoS2 in a very high dosage. This MoS2 remains attached to the metal surfaces of the plain bearings and ensures lubrication at the first start-up of the turbocharger. It prevents failures and increases the service life of the turbocharger.” Remanufactured Turbos from Ivor Searle Ivor Searle’s all makes turbocharger programme covers diesel and petrol cars and LCVs. Ivor Searle turbochargers undergo quality checks and test procedures throughout the remanufacturing process, with all internal components renewed, and each turbo‘s rotating assembly balanced on a VSR machine to recalibrate the unit to OE specification before undergoing final quality inspection. All Ivor Searle turbochargers are covered by two years unlimited mileage, parts and labour warranty, and the company also provides free next day UK mainland delivery for stock items ordered before 3.30pm. www.ivorsearle.co.uk