1900001270 TOYOTA PUMP ASSY, INJECTI Calibration Data

The flat type air cleaner uses a filter paper type element.(b) Cyclone type air cleaner The cyclone type air cleaner uses a filter paper type element.Because of plastic coating and heat treatment, the element is highly resistant to water and oil. Even if it is contaminated, its functions can be regained by cleaning.The intake air is given a spin by the vanes for centrifugal separation of large particles of dust and dirt. Small particles of dust and dirt are filtered out by the filter paper element so that a clean air is drawn into the engine.The standard air cleaner is a single element type, and the double element type can be effective for operation safety under unusual conditions with a lot of dust and dirt.(2) Precleaner The precleaner, coupled with the air cleaner, collects relatively large particles of dust contained in the air drawn in by engine.The air entering the precleaner is made to spin by the guide vanes of the precleaner to centrifugally separate large particles of dust before the air is drawn into the air cleaner. These dusts are collected in the precleaner.(3) Vacuator Valve Centrifuged dust collects at the bottom of the air cleaner. A vacuator valve made of rubber is mounted to the bottom, which pulsates to automatically discharges dust and water when the engine speed is below about 8-0 rpm. Namely when the engine is running at a speed higher than 800 rpm, the negative pressure in the air cleaner keeps this valve closed but when the negative pressure drops as the engine speed decreases, the valve is made to open by rubber action, thereby discharging dust and water.(4) Dust Indicator The dust indicator is mounted near the outlet of the air cleaner.The dust indicator operates on the negative pressure of the air drawn into the engine performing the function of indicating the time to clean or replace the element.If dust is collected in the element, the suction resistance increases. When the negative pressure reaches 7.47 kPa (762 mmH2O), the signal is pulled down against the spring pressure, and the transparent portion of the body changes to red, indicating the time to clean or replace the element.After the element has been cleaned or replaced, depress the reset button on the top, and the signal will return to its original position.* Electrical dust indicator In the electric dust indicator, its electric contact points close at a negative pressure of 6.23 kPa (635 mm H2O) to turn on the warning lamp, indicating to the driver the time to clean or replace the element.(5) Turbocharger The turbocharger utilizes the energy of the engine exhaust gas to feed more air into the engine, thereby offering advantages such as boosted engine power output, thrifter fuel consumption, and reduced engine noise.The exhaust gases discharged from the cylinder of the engine are led through the exhaust manifold into the turbocharger and are accelerated in the turbine housing and are blown against the turbine wheel. Accordingly, the turbine is made to