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troubleshooting isuzu npr glow plugs

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1981-1996 ISUZU Amigo/Pick-ups/Rodeo/Trooper Glow Plugs SYSTEM TESTING REMOVAL AND INSTALLATION MANUAL

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SYSTEM TESTING See Figures 1, 2, 3 and 4 Fig. Fig. 1: Glow plug system schematic Fig. Fig. 2: Dropping resistor and glow plug relay locations Fig. Fig. 3: Thermo switch location Fig. Fig. 4: Dropping resistor check To test the dropping resistor, check for continuity across the terminals as described in the illustration. If no continuity exists, replace the unit. 1. To test the thermo switch, first remove the switch. Submerge the end of the switch in water and raise the temperature gradually. The switch should be off at 126-140°F (53-60°C) or lower. The switch should be on at 134-145°F (57-63°C) or higher. If not, replace the switch. 2. REMOVAL & INSTALLATION See Figure 5 Fig. Fig. 5: Location of the glow plugs The glow plugs are located under the injection nozzles, and are threaded into the cylinder head. Disconnect the negative (-) battery cable. 1. Disconnect the glow plug and unscrew it from the engine. 2. To install: Lubricate with anti-seize compound before installing the plug. 3. Install and tighten the plug to 65 ft. lbs. (88 Nm). 4. Reconnect the plug wiring. 5. Connect the battery cable and check operation. 6.

1998-2000 ISUZU RODEO/AMIGO HIGH/ERRATIC IDLE CONDITION SERVICE MANUAL

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1998 – 2000 MODELS 1. Inspect main ground points (refer to SB99*04*S001 for more information). * P6 ground point-body [on the passenger side of engine compartment, between the battery and cruise control actuator (if equipped)]. (Figure Fig. 1 ) * P10 ground point-engine (at the alternator bracket) . (Figure Fig. 2 ) Isuzu: 1998 – 2000 Rodeo AFFECTED VEHICLES:1998 – 2000 Rodeo (UE)/Amigo (UA) models with 3.2L V6 engines NOTE: Please refer to the appropriate workshop manual for the correct diagnosing procedure and/or follow the service procedures outlined in this bulletin for the vehicle being serviced. NOTE: The 1998, 1999 or 2000 Rodeo/Amigo Electrical Troubleshooting Manual can assist in locating the vehicle ground distribution (i.e., ground contact points). * Perform a voltage drop test at the main ground points. * If the voltage drop test fails, then inspect and clean both the bolt and contact point. * Verify and correct idle settings (if needed) as described in the workshop manual. * If the repair procedure on this step solves the high idle condition, then return the vehicle to the customer. If the repair procedure on this step does not solve the high idle condition, then go to step 2 (16 pin Blue Connector). B. Remove P-6/P-10 ground terminal and bolt for ground contact inspection. * Inspect ground contact area for corrosion. * Inspect bolt and thread for damage or corrosion. * Clean the ground area and fastening bolt thoroughly with a wire brush. * Replace bolt if damaged or heavily corroded. C. Install the P-6/P-10 ground terminal and bolt (tighten using hand tools only). * Torque the P-6/P-10 ground terminal bolt to (14 N.m) 10 lb.ft. 1998 – 1999 MODELS ONLY 2. Inspect the 16 pin blue connector, located under the power steering fluid reservoir for corrosion, bent, or damaged pins (specifically for the Throttle Position Sensor). (Figure Fig. 3 )

1995 Isuzu Trooper LS TIMING BELT REMOVAL AND INSTALLATION MANUAL

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TIMING BELT Removal 1. Disconnect negative battery cable. Remove air cleaner assembly. Remove upper fan shroud. Remove cooling fan assembly. Remove all accessory drive belts. 2. Remove fan pulley assembly. Remove crankshaft pulley bolt. Using Puller (J-8614-01) or equivalent, remove crankshaft pulley. Remove oil cooler hose from timing cover. Remove timing belt cover. Align all timing marks prior to belt removal. See Fig. 1 – Fig. 4 . Remove belt tensioner pusher and timing belt. Fig. 1: Aligning Timing Belt Sprockets (DOHC) Courtesy of ISUZU MOTOR CO. Installation 1. Ensure all timing marks are aligned. Install belt over one pulley at a time starting at crankshaft sprocket and working counterclockwise. Belt should go over tensioner last. Secure belt at each pulley during installation with pinch clips. See Fig. 5 . 2. Compress timing belt tensioner pusher and insert pin to retain pusher. Apply pressure to tensioner against belt, and install tensioner pusher. Tighten bolts to specification. See TORQUE SPECIFICATIONS . 3. Loosen tensioner pulley bolt. Apply pressure on belt by rotating tensioner. Tighten tensioner pulley bolt to specification.. See TORQUE SPECIFICATIONS . Remove pin from timing belt tensioner pusher. 4. Remove pinch clips from timing belt (if used). Install crankshaft pulley, tightening center bolt finger tight. Rotate crankshaft 2 turns clockwise. Ensure timing belt tensioner pusher rod protrudes proper

1997 Mercedes Benz SL 500 Hydraulic Cylinder For Soft Top Bow Removal And Installation Manual

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NOTE: It is necessary to plug the hydraulic lines immediately with plugs 129 589 91 07 and the connections with plugs 129 589 00 91 11. Hydraulic cylinder remove on main bracket from inside of vehicle and lay down in soft top compartment (fig. 8) Hydraulic lines on hydraulic cylinder remove (fig. 8) NOTE: Plug the hydraulic lines immediately with plugs 129 589 00 91 07, the connections on the distributors and hydraulic cylinders with plugs 129 589 00 91 11. Screws screw out (fig. 8, item 8) and remove limit switch (item 9) from hydraulic cylinder NOTE: Check limit switches after completing vehicle and adjust, if required. Reinstall in opposite order (observe installation note) Check for proper function and leakage Special too Installation note When installing the hydraulic cylinder pay attention to the code numbers on hydraulic lines as well as the position of the lines in the B-pillar. Line positioning and code numbers Removal & Installation of Hydraulic Cylinder For Top Actuation Notes Removal & Installation of Hydraulic Cylinder For Top Actuation Preliminary jobs: Remove coupe roof (operating instructions). Remove baggage shelf. See: Interior Moulding / Trim\Service and Repair Remove coverings in rear. Remove occasional seats. See: Seats\Service and Repair

1983 Mazda RX-7 GSL ENGINE COMPRESSION TESTING

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HIGH TENSION WIRE RESISTANCE Carefully remove high tension wires from spark plugs and distributor cap. Using an ohmmeter, measure resistance of wires while gently twisting wires. If resistance is not to specifications, or fluctuates from infinity to any value, replace high tension wire(s). HIGH TENSION WIRE RESISTANCE High Tension Wire Routing For high tension wire routing, see Fig. 2 and Fig. 3 . Fig. 3: Locating High Tension Wires On Distributor Cap Courtesy of MAZDA MOTORS CORP. ADJUSTMENTS DISTRIBUTOR All models are equipped with Mitsubishi electronic ignition with 2 pick-up coils. Air gap is non-adjustable IGNITION TIMING 1. Warm engine to normal operating temperature. Connect a tachometer, then connect timing light to leading (lower) spark plug of front rotor. Start engine and run at idle speed. 2. Check ignition timing and rotate distributor to correct if necessary. Tighten distributor lock nut and recheck timing. 3. Connect timing light to trailing (upper) plug of front rotor. Start engine and check timing. If not correct, loosen vacuum unit attaching screws. Move vacuum unit in or out to adjust trailing timing. Remove test equipment.