| The most common, but not the only reason for engine failure on these vehicles, is excessively high combustion and exhaust gas temperatures. | | At SAC we realised that something needed to be done about all these engine failures and we developed safeguard units and gauges to prevent more engine failures on these vehicles. | | | | | All you need to know about EGT | Most turbo charged diesel bakkies and cars today have all the most essential instrumentation fitted as standard equipment. | They have a good range of warning lights and tell-tale systems on the dashboard, however at SAC we feel that the manufacturer left out the most important monitor of all. | | The EGT Gauge |  | | There are many factors which affect the EGT’s on a diesel turbo, some of which can be controlled but in most cases one wouldn't even know that the EGT is excessive or climbing until it was too late. | Our experience over the past 6 years or so has dictated the need to develop and produce a simple EGT gauge, which can be fitted to any diesel turbo charged vehicle. | With roughly 35 diesel turbo charged vehicles passing through our workshops countrywide every day, we are well aware of what is happening to components on or inside a engine which are exposed to excessively high EGT's for long periods of time. | We also know that 90% of diesel turbos today run with EGT's around 830ºC, some even as much as 950ºC. | People who tend to be in a hurry or those who tow or even drive with heavy loads are the ones who are most affected by high EGT's. | | The worst is that the engine won't necessarily fail after only a few incidents of high EGT; in our experience we find the vehicles to show their damage a at higher mileage although destruction starts at the very first exposure. | | | | About the gauge | The gauge that we use is specifically designed and developed for SAC to our requirements. | We made the gauge as universal as possible in order to use it on as many different models as possible. | It has a thermo couple and 12V supply. | The thermo couple fits into the exhaust manifold between the cylinder head and the turbocharger and has a sensor on the tip, which needs to be in the main flow of exhaust gasses exiting the engine. | The thermo couple, which we use, can accommodate temperatures up to 1300ºC. | | | | |
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