TIGOR

1.05L REVOTORQ ENGINE 71 Components : A. Exhaust Manifold : The exhaust manifold is mounted on the cylinder head. The exhaust gases are trapped out from the engine through the exhaust manifold. B. Turbocharger (WGT) : The power output from an internal combus- tion engine depends on the mass of the air and fuel quantity that are available for combustion. To in- crease the engine horse power, more air for combustion and more fuel have to be delivered. The turbocharger is one of the common super charging devices used in an engine. It makes use of thermal energy of engine exhaust gases to run a turbine which in turn drives a compressor to pressurize the inlet air. It also helps in improving the volumetric efficiency of the engine. Waste Gate This feature in turbocharger consists of a bypass valve built into turbine housing controlled by an actuator. Some part of the exhaust gas going to the turbine is bypassed through this valve. This is as shown in the sketch. The waste gate arrange- ment reduces the high boost pressure developed by the compressor to the desired value, thus obtaining the optimum engine performance with controlled peak cylinder pressure. Precautions :  Avoid Lifting the turbo-charger by holding the actuator.  Avoid Lifting turbo-charger holding the rod end of the actuator.  Avoid Lifting turbo-charger holding the compres- sor side.  Hold the turbo-charger at the turbine housing /center housing.  No foreign particles (dust/dirt) should enter the vacuum line.  Ensure the conditions of handling and installation of turbocharger/manifold are such that there is no risk of shocks, dropping the turbocharger or damage to the sealing surfaces (turbine housing inlet and outlet surfaces, compressor inlet and outlet, oil circuit), or damage to the actuator or flow adjusting rod and screw which might lead to the misalignment.  If the turbocharger is dropped, then it should be inspected. If it is damaged, it should not be used.  Put few drops of oil during assembly and rotate the wheel with finger. Look for free movement of wheel with no wheel rubbing.