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Here is one idea that will let you utilize the Surbo system to the maximum. Attaching a boost gauge, you will be able to get the most power per throttle travel (->press less, get more power). It’s not for measuring a boost output, but as a means of consistently commanding the Surbo, especially under low-torque situations at very low rpm and/or in a very high gear. If you do not wish to install a gauge, just reading this page will help you understand the Surbo system better. Note: “gauge” and “meter” refer to the same thing. Please also refer to How The Surbo System Works to see how the boost gauge (white circle) is positioned within and related to the Surbo system. Why A Boost Gauge? When you have your gauge installed and you drive normally, you will realize that it is always pointing up and down. This means that supply of air (from the air intake) is not equal to demand for air (by the engine), especially during acceleration, or after gearchanges, or driving under different loads or terrain, or a combination of the above. When the demand for air is not met by the air intake (indicated by a falling needle on the meter), this can reduce engine power. With the meter attached to and reading from the air manifold (the holding area between the throttle and engine), once you balance the needle at any point by moving your right foot, supply=demand and the airflow will be optimized. By moving your foot, the Surbo is activated automatically! Background The boost gauge had found a new use as a Surbo trigger on our test car. While we wanted our customers to have the same fun, problems resulted as customers could not choose or find suitable gauges or supervise the job as stated; almost always, based on user feedback and our own checks, unknown installers did poor jobs that caused leaks to the vacuum and resulted in Surbo failure as well. So we have to write a clear guide to prevent failure during installation, for you to use in supervising the job. You can’t just leave it to the installers as they won’t care about giving you a perfect seal.
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SENSOR The sensor unit consists of a gear-shaped sensor rotor and a sensor element. The element contains a bar magnet around which a coil is wound. The sensor is installed on the back side of the brake rotor. Sine-wave current is generated by the sen- sor as the wheel rotates. The frequency and voltage increase(s) as the rotating speed increases. V’ Induced electromotive force SBR124B CONTROL UNIT The control unit computes the wheel rotating speed by the sig- nal current sent from the sensor. Then it supplies a DC current to the actuator solenoid valve. It also controls ON-OFF opera- tion of the valve relay and motor relay. If any electrical mal- function should be detected in the system, the control unit causes the warning lamp to light up. In this condition, the ABS will be deactivated by the control unit, and the vehicle’s brake system reverts to normal operation
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Removal Procedure 1. 2. 3. 4. 5. 6. Raise the vehicle. Remove the tire and wheel assemblies. Remove the brake drums Remove the axle shafts. Remove the differential. Remove the drive pinion from the axle. 7. Press the bearing off of the pinion using theJ 22912-B . 8. Remove the shim. 9. Remove the drive pinion bearing cups from the axle housing using a hammer and a brass drift in the slots provided. Move the drift back and forth between one side of the cup and the other in order to work the cups out of the housing evenly. Installation Procedure 1. Install the outer pinion bearing cup using the J 8611-01 (8.6 inch axle) (2), or the J 7818 (9.5 inch axle) (2) and the J 8092 (1). 2. Install the inner pinion bearing cup using the J 8608 (8.6 inch axle) (2), or the J 22306 (9.5 inch axle) (2) and the J 8092 (1). 3. Determine the selective shim thickness for the pinion. 4. Install the selective shim between the inner pinion bearing and the shoulder on the gear. 5. Install the inner pinion bearing using the J 24433 (8.6 inch axle) or the J 36614 (9.5 inch axle). Press the bearing on until the cone seats on the pinion shim. 6. Install a new collapsible spacer. 7. Install the pinion into the axle housing. 8. Install the outer pinion bearing onto the pinion. 9. Install a new pinion oil seal and the pinion yoke. 10. Install the differential. 11. Install the brake drums. 12. Install the tire and wheel assemblies. 13. Fill the axle with lubricant. Use the proper fluid. 14. Lower the vehicle.
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This system returns blow-by gas to the intake manifold. The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake manifold. During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV valve. Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air. The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air passes through the hose connecting air inlet tubes to rocker cover. Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve. The flow goes through the hose connection in the reverse direction.
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1. RUN ENGINE AT APPROX. 1,500 RPM 2. OPERATE AIR CONDITIONER AT MAXIMUM COOLING FOR A FEW MINUTES 3. CHECK AMOUNT OF REFRIGERANT Observe the sight glass on the receiver. Insufficient* (1) Check for gas leakage with gas leak Bubbles present in sight glass tester and repair if necessary (2) Add refrigerant until bubbles disappear Refer to items 3 and 4 No bubbles present in sight glass None, sufficient or too much Empty or nearly empty (1) Check for gas leakage with gas leak No temperature difference between tester and repair if necessary compressor inlet and outlet (2) Add refrigerant until bubbles disappear Refer to items 5 and 6 Proper or too much Temperature between compressor inlet and outlet is noticeably different (1) Recover refrigerant Immediately after air conditioner is turned Too much (2) Evacuate air and charge proper off, refrigerant in sight glass stays clear amount of purified refrigerant When air conditioner is turned off, Proper refrigerant foams and then stay clear
