34660-90J01 Suzuki WATER PRESSURE GAUGE SUB KIT

CARE OF THE DIESEL FUEL TANK: Fill the fuel tank at the end of the day, because the incoming fuel will drive out the moistureladen air and prevent condensation. DRAINING FUEL TANK SEDIMENT ACCUMULATION: Open the drain cock and drain off any sediment or water which may accumulate in the fuel tank before starting the engine. In temperatures below freezing, drain shortly after the truck has stopped to prevent water freezing in the bottom of the tank and other low points in the system. FUEL FILTERING SYSTEM: As either the primary fuel filter element or the final fuel filter element gradually become clogged with foreign material, lack of horsepower will be noticed and the position of the fuel gauge indicator will work back from the original position in the NORMAL, green or approximately 30 psi (205 kPa) range, to the OUT, red or approximately 23 psi (160 kPa) range.Every 10,000 miles (16 000 km) or when the indicator shows in the OUT (red) range, the metallic primary fuel filter element (if equipped) should be removed and washed. If the indicator still shows in the OUT (red) range, the final filter element should be replaced with a Caterpillar filter element.Other make fuel filters may not meet filtering or capacity requirements. See the topics, PRIMARY FUEL FILTER and FINAL FUEL FILTER. PRIMARY FUEL FILTER: To remove the filter element, stop the engine and shut off the diesel fuel tank valve. Loosen the nut on the filter cover and lower the filter case. Remove the element and wash in clean solvent or diesel fuel. Reinstall the element.
PRIMARY FUEL FILTER FINAL FUEL FILTERS: The filter elements collect and hold contaminants and cannot be washed or otherwise restored.To remove the used filters, proceed as follows:1. Stop the engine and close the diesel fuel line valve (if equipped).2. Unscrew and remove filters.3. Clean the gasket sealing surfaces on the filter bases.4. Lubricate the filter gaskets with clean diesel fuel.
Do not pour fuel into the new filter elements before installing. Prime the system as instructed in the topic, PRIMING THE FUEL SYSTEM.
5. Tighten the filters by hand, only tight enough to prevent leaks. (Do not overtighten.)6. Prime the fuel system. Refer to the topic "PRIMING THE FUEL SYSTEM".
REMOVING FUEL FILTER ELEMENT KEEP NEW FUEL FILTERS ON HAND: Extra filters should be kept on hand for replacement. Always keep filters wrapped in their original carton to insure against dust and dirt accumulation which will shorten the life of the filters or may cause damage to the fuel injection equipment. PRIMING THE FUEL SYSTEM: Any time the fuel flow is broken and air is allowed to get into the fuel system, the system must be primed. If air is left in the lines, the fuel system may become air bound, resulting in inability to start the engine or the misfiring of one or more cylinders.
PRIMING THE FUEL SYSTEMThe fuel priming pump is mounted on the accessory drive housing. If only the fuel filters are changed follow steps 1 through 5. If the fuel system is completely drained or if the engine has run out of fuel continue with steps through 10.1. Check to see that the fuel line valve is open.2. Open the fuel filter vent valve on the fuel filter housing.3. Loosen the knob of the fuel priming pump.4. Operate the pump plunger in and out until the flow of fuel from the vent valve is continuous and free of air bubbles.5. Close vent valve.6. Move governor control to the shut-off position and loosen fuel line nuts (one at a time) at the pump housing.7. Operate priming pump until clear fuel flows from the fuel pump lines. Tighten fuel line nut.8. Repeat for each fuel pump.9. Lock the knob of the fuel priming pump to its original position.10. Start the engine. If the engine does not run smoothly further bleeding may be necessary. With the engine running, open and close the fuel injection line nuts, one at a time, several times in succession to be sure all the air is bled from the system. Tighten fuel line nuts to 30 lb. ft. (40 N m). Do not overtighten.Fuel Injection Equipment
When improper fuel injection is affecting engine operation, a systematic check should be made to determine the cause. The most likely cause is dirt or water in the fuel. Drain the sediment from the fuel tank. Check the fuel pressure gauge as mentioned in the topic, FUEL FILTERING SYSTEM. Replace the filters if necessary. Then prime the fuel system until clean fuel reaches the fuel injection pumps. If the fuel system is air bound, priming the system will overcome the difficulty.If the engine is running irregularly, smoking, or knocking, a fuel injection valve may not be spraying the fuel properly.As the clearance between the plunger and the barrel of a fuel injection pump increases, due to wear, fuel leakage occurs. When the leakage increases to the point where insufficient fuel is injected into the cylinder, a loss of power is noticeable. With the loss of power, hard starting is also encountered. TESTING FUEL INJECTION VALVES: Whenever an engine performs in such a manner that a fuel injection valve is suspected of causing trouble, test all fuel injection valves. To test the injection valves: Loosen the fuel injection line nut at the fuel injection pumps, one at a time, while the engine is running.
LOOSENING FUEL INJECTION LINE NUT TO TEST VALVEWhen a nut is loosened and the exhaust smoking is completely or partially eliminated and the irregularity in running is not affected, this identifies the probable location of a defective valve and a new one should be installed in that cylinder to definitely determine if the valve removed was defective.Never wire brush or scrape a fuel injection nozzle assembly as this will damage the finely machined orifice. Your authorized dealer has the proper tools for cleaning and testing fuel injection valves. REMOVE FUEL INJECTION VALVE: Clean dirt from around the valve cover and remove. Before removing an