Diesel Injector Copper Washers Seal Sealing Rings Kit Ports Assortment 150pcs

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Fit them: Fit each injector (with a new copper washer) into the engine. Locate the clamp over each pair of injectors. This orientates the injectors for spray pattern.

Well shot:The copper sealing washer from the same injector is deformed and eroded on the near side, allowing combustion gas to blow upward over the injector body, and engine oil to leak down into the cylinder.Moment of truth: The injectors should now come out with a good wiggle and some persistence, but they can be very tight if they suffer from carbon build-up or swollen tips.

ED EVANS SAYS: Injectors tend to be forgotten about until there’s an engine running problem and, of course, not all problems are down to injectors. A multitude of other engine defects can affect the state and lifespan of the injectors, so it’s vital to keep the engine correctly maintained and properly used to avoid replacement of these relatively expensive items. Before thinking about replacing injectors, the engine needs to be inspected by a good specialist to confirm the cause of the symptoms, and the full effects. BMW 114D, 116D, 118D, 120D, 216D, 218D, 220D, 316D, 318D, 320D, 420D, 518D, 520D, X1 18D, X1 20D, X2 18 D, X2 20D, X3 18D, X3 20D, X4 20D 2012- Where are they?The 2.4 Puma engine bay: like all modern cars, the injectors are hidden under the plastic cover. Two bolts, off it comes, and we can see everything. Last job: With a hot engine, the software automatically sets and adjusts the injector adaption values over five set points according to engine parameters. Engine abuse:The state of this injector, from a different TDCi Defender, shows why it’s important to maintain the engine in good health. The injector nozzle is coated with carbon and oil, making an efficient fuel spray pattern impossible. This injector hasn’t failed on its own, it’s been destroyed by neglecting other aspects of the engine.It is possible to recondition the injectors, but results can vary, so consider the value of simply replacing old with new. New injectors need to be coded to the car using diagnostic software via the OBD port. There are two things to be aware of when changing injectors. Carbon deposits can form on injector tips, making their extraction from the head difficult. And the mating seat in the head must be free from dirt and deposits when refitting the new injector. Like all of us working on our Land Rovers, consider carefully if you can cope with either issue. If not, then it might be time to take the car to a specialist. There’s no shame in that: wise enthusiasts understand the limits of their abilities. On this 120,000-mile 2.4 Defender belonging to Karl Jane, another garage had previously reconditioned and refitted the injectors. But after they were coded to the car, the adaption values were way out, which would ultimately mean the injectors weren’t calibrated accurately at the ECU. Rather than cope with compromised performance, Karl opted to have new units fitted, this time by IRB Developments, where Ian Baughan now shows us the procedure for injector renewal on this 2010 Defender 90. Feed pipes: Remove the four injector feed pipes. Technically, these should be renewed, being part of the high-pressure system. Close inspection shows them to be perfect to reuse. Torque matters: The clamp bolts are stretch bolts, so correct and accurate tightening is critical. When set, they stretch a set amount, but remain elastic. Torque first to 8Nm. If you're an older motorist, you may associate the job of feeding fuel into the engine with the carburettor. However, fuel injectors have been gradually taking over from carburettors since the 1990s. They're simply cleaner and more efficient. How to spot a faulty fuel injector