When any part of the overboost protection system fails, your turbo diesel engine can lose power or start to smoke too much. In this video Kent will walk you through the theory of operation, where the key components are located, how to easily test for proper operation, where the problem areas are and how to fix them.
You will get to see first hand how he solves a heavy smoking problem in a W123 300TD wagon, by going step-by-step through the inspection, cleaning and repair process on this car. As is most often the case on these old cars, there was more than one problem found with this system.
Please note: this video does not show you how to test the overboost sensor switch mounted on the intake manifold. That can only be tested off the engine on the bench with special equipment. Kent is currently working on an easy way for the DIY mechanice to test this switch on his own. Look for future announcements here.
Once you are done inspecting, cleaning and repairing the overboost protection system, you may want to adjust the injection pump mixture at the ALDA device. That procedure is covered in a separate video. Please see related products below.
Total Run Time: 20:42
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