Filed Under (Harley Davidson) by admin on 29-01-2011
Removing the Analog Fuel Gauge NOTE The fuel gauge wires are routed through a tube in the fuel tank, and are secured by a clip at the bottom of the tank and, on some models, a clamp on the frame. Open the clip and clamp as needed, and be sure there is enough slack in the wires to be able to lift out the gauge. 1. At the bottom left side of the fuel tank, bend back the flexible clip slightly to free the fuel gauge conduit. Open the harness clamp on the frame if necessary to free the conduit. Gently pull on the conduit to draw the Multilock connector  out of the tunnel. 2. See Figure 2. Depress the pin on the socket terminal side of the connector, and pull apart the pin and socket halves. 3. See Appendix B in an appropriate Service Manual. Use a pick (Snap-On TT600-3 or equivalent) to remove the terminals or clip off the wires. Remove and discard the fuel gauge. 4. For Carbureted Models: See Figure 2. Remove the fuel gauge by firmly grasping and carefully pulling up (do NOT twist) on the gauge just far enough to free it from the fuel tank. Disconnect the two sending unit connectors. Feed the conduit and two wires up through the tube while removing the gauge. Remove and discard the fuel gauge. For Fuel-Injected Models: See Figure 2. Remove the fuel gauge by firmly grasping and carefully pulling up (do NOT twist) on the gauge to free it from the fuel tank. Feed the conduit and three wires up through the tube while removing the gauge. Remove and discard the fuel gauge. 5. Remove and discard the rubber gasket. INSTALLATION For Kit Numbers 75084-04B or 75237-03B 1. See Figure 2. Assemble the new gasket (3) to the LED fuel gauge (1) from the kit. Install the gasket so the flat side contacts the edge of the gauge. 2. See Figure 1. Use three of the Phillips-head screws and washers from the kit to connect the wires as follows: Fasten the Orange wire (1) ring terminal to the gauge connection marked “12V and “O” with a screw and washer. Fasten the Black wire (2) ring terminal to the connection marked “GND” and “BK” with a screw and washer. Fasten the Yellow/White wire (3) ring terminal to the connection marked “Y/W” with a screw and washer. 3. See Figure 2. While carefully lowering the fuel gauge, feed the wire harness (2) down into the drain tube until the three short (Orange, Black, Yellow/White) wires exit the hole at the bottom of the fuel tank. Gently pull the wires to remove slack while installing the gauge to the fuel tank. Do not twist the gauge during installation. Hold the gauge firmly and press down until it snaps into place
Filed Under (Harley Davidson) by admin on 28-02-2011
INSTALLATION To prevent accidental vehicle start-up, which could cause death or serious injury, remove main fuse before proceeding. (00251b) 1. Refer to the Service Manual and follow the instructions given to remove the main fuse. When servicing the fuel system, do not smoke or allow open flame or sparks in the vicinity. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. (00330a) 2. Remove the currently installed fuel tank from the vehicle. Follow the instructions for the correct model vehicle under FUEL TANK: EFI, REMOVAL in the Service Manual. 3. See FUEL PUMP/FUEL GAUGE SENDING UNIT, REMOVAL in the Service Manual for instructions to: a. Unplug the fuel pump module connector. b. Remove and discard the top plate screws. c. Remove the top plate, fuel pump and fuel level sender (fuel gauge sending unit) from the tank. NOTE Take care to avoid bending the fuel level sender float rod. A bent float rod will lead to erroneous gauge readings. 2 6 1 3 4 7 9 8 5 is05284 1. Fuel level sender 2. Electrical grounding tab 3. Fuel level sender lock tab 4. Adapter bracket 5. Slot (2) 6. Terminal strip insert 7. Sender to adapter lock tab 8. Slider 9. Adapter to tank lock tab Figure 1. Fuel Level Sender Assembly to Adapter – 4. See Figure 1. Clean the electrical grounding tab (2) on the back of the fuel level sender if necessary. The tab must make firm contact with the terminal strip insert (6) in the adapter bracket. Slide the original equipment (O.E.) fuel level sender (1) into the slots (5) in the new adapter bracket (4) as shown until the lock tabs (3 and 7) snap into place. Make sure the wire is not pinched between the adapter and sender. 5. See FUEL SUPPLY CHECK VALVE/TUBE in the Service Manual. Remove the check valve/quick-connect fitting assembly from the old fuel tank, and assemble to the new tank, using a new O-ring (purchased separately). 6. Fit the slider (8) on the adapter bracket into the fuel level sender mounting channel inside the tank, and push down until the lock tab (9) snaps into place. Make sure the sender and adapter wires are not pinched between the adapter and the fuel tank tunnel, and remain accessible through the fuel tank top opening. 7. See Figure 2. Obtain the assembly of the top plate (1), regulator (2) and fuel filter (3) removed from the old fuel tank, and the stainless steel screw (8) and nut (9) provided in this kit.
Filed Under (Suzuki) by admin on 26-02-2011
FUEL PUMP The electric fuel pump is mounted at the bottom of the fuel tank, which consists of the armature, magnet, impeller, brush, check valve and relief valve . The ECM controls its ON/OFF operation as controlled under the FUEL PUMP CONTROL SYSTEM . When electrical energy is supplied to the fuel pump, the motor in the pump runs and together with the impel- ler . This causes a pressure difference to occur on both sides of the impeller as there are many grooves around it . Then the fuel is drawn through the inlet port, and with its pressure increased, it is discharged through the outlet port . The fuel pump has a check valve to keep some pressure in the fuel feed hose even when the fuel pump is stopped . Also, the relief valve is equipped in the fuel pump, which releases pressurized fuel to the fuel tank when the outlet of the fuel pressure has increased up to 450 -600 kPa (4.5- 6.0 kgf/cm2,64- 85 psi) . Relief valve Brush , ∎ I,’ Check valve Magnet L Armature When the impeller is driven by the motor, pressure differential occurs between the front part and the rear part of the blade groove as viewed in angular direction due to fluid friction . This process continuously takes place causing fuel pressure to be built up . The pressurized fuel is then let out from the pump chamber and discharged through the motor section and the check valve . FUEL SYSTEM AND THROTTLE BODY 5- 3 Inlet port I I Impeller 5-4 FUEL SYSTEM AND THROTTLE BODY FUEL PRESSURE REGULATOR The fuel pressure regulator consists of the spring and valve . It keeps absolute fuel pressure of 300 kPa (3.0 kgf/cm2,43 psi) to be applied to the injector at all times . When the fuel pressure rises more than 300 kPa (3 .0 kgf/cm2, 43 psi), the fuel pushes the valve in the regulator open and excess fuel returns to the fuel tank . 90 Spring 02 Valve FUEL INJECTOR The fuel injector consists of the solenoid coil, plunger, needle valve and filter . It is an electromagnetic type injection nozzle which injects fuel in the throttle body according to the signal from the ECM. When the solenoid coil of the injector is energized by the ECM, it becomes an electromagnet and attracts the plunger. At the same time, the needle valve incorporated with the plunger opens and the injector which is under the fuel pressure injects fuel in conic dispersion . As the lift stroke of the needle valve of the injector is set constant, the volume of the fuel injected at one time is determined by the length of time during which the solenoid coil is energized (injection time)
Filed Under (BMW) by admin on 26-10-2010
Oil Temperature and Gauge 2.1. Introduction My 1998 BMW R1100RT came with an LCD temperature gauge that shows horizontal black bars in a vertical motif, to indicate temperature. This is difficult to interpret at speed (how many bars are exposed?) and does not actually tell me what the oil temperature is. 2.2. Normal Operation The bike seems to run at 5 or six bars under normal conditions. It appears that the oil thermostat for the cooler is set to ’5 bars’. 2.3. Over Heating The LCD panel indicates that 8 bars is the maximum normal operating temperature. It would be useful to know what the actual temperature is. Modern oils have a normal operating temperature of approximately 110 degrees Celsius and will not show any serious degradationii at this temperature. The maximum sustained operating temperature (at the bearing surface) is approximately 130 degrees Celsius for any oil formulated in the past 5 years and some high performance synthetics will not appreciably degrade even at this temperature. However, the degradation curve is a polynomial and degradation will increase rapidly with increasing temperature. According to the oil’s formulation (pure synthetics will show the least increase with temperature), by approximately 160 degrees Celsius (or about 300 degrees Fahrenheit), oil degradation can be up to 10 times faster then at 110 Deg. C. 2.4. Scale To fix the ‘number of bars’ problem, I determined that an overlay with numbers would be the best idea. 2.4.1. Addendum The number scale became too much to maintain. Rather than this, I cut a mm or so wide stripe out of the self sticking stripping meant for the side of a car. Using a red material, I put it through the middle of the fifth bar of both the temperature and fuel display. The stripe is slightly smaller than the thickness of the bar. This allows me to tell when I am at normal operating temperature and when approximately half a tank is used
Filed Under (Harley Davidson) by admin on 30-03-2012
1. Remove seat. 1 WARNING 1 WARNING To prevent spray of fuel, purge system of high-pressure fuel before supply line is disconnected. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. (00275a) 2. Purge the fuel supply line of high pressure gasoline. a. See Figure 4-36. Disconnect the fuel pump fuse from the main wiring harness. b. Start the engine and allow the vehicle to run. c. When the engine stalls, operate the starter for 3 seconds to remove any remaining fuel from the fuel lines. 1 WARNING 1 WARNING To prevent accidental vehicle start-up, which could cause death or serious injury, disconnect negative (-) battery cable before proceeding. (00048a) 3. Disconnect negative battery cable. 4. Remove instrument console. a. All but FXSTD, see Figure 4-37. Remove acorn nut and washer on instrument console to separate console from fuel tank. b. For FXSTD, see 8.26 INSTRUMENT CONSOLE: FXSTD. 5. Disconnect console wiring. Figure 4-36. Fuel Pump Fuse: View From Top Figure 4-37. Acorn Nut And Washer: All But FXSTD s0660x8xx 7526
4-28 2007 Softail: Fuel System HOME 1 WARNING 1 WARNING Gasoline can drain from the crossover line when disconnected from fuel tank. Gasoline is extremely flammable and highly explosive, which could result in death or serious injury. Wipe up spilled fuel immediately and dispose of rags in a suitable manner. (00259a) 6. Drain fuel tank. a. Obtain a short section of hose (5/16 inch I.D.). Insert bolt in one end of hose and install hose clamp to ensure that end is securely plugged. b. See Figure 4-38. Cut clamp (1) from one end of crossover hose (2). Quickly replace crossover hose on fuel tank fitting with open end of short hose while directing flow of gasoline from free end of crossover hose into suitable container. 7. See Figure 4-39. Unplug fuel pump module connector (3) . 8. Remove top plate screws (2) and discard. 9. See Figure 4-40. Pull top plate (2) out of fuel tank enough to expose fuel hose and clamp (1). CAUTION Carefully inspect end of hose for cuts, tears, holes or other damage. Replace hose if any damage is found. Even the smallest hole can cause a reduction in fuel pressure. 10. Cut clamp and remove hose from regulator housing fit- ting.