SENR9977 33 Testing and Adjusting Section If excessive air is not seen at the inlet to the fuel transfer pump, the air is entering the system after the fuel transfer pump. Refer to the Testing and Adjusting, “Fuel System - Prime”. If excessive air is seen at the inlet to the fuel transfer pump, air is entering through the suction side of the fuel system. To avoid personal injury, always wear eye and face protection when using pressurized air. NOTICE To avoid damage, do not use more than 55 kPa (8 psi) to pressurize the fuel tank. 4. Pressurize the fuel tank to 35 kPa (5 psi). Do not use more than 55 kPa (8 psi) in order to avoid damage to the fuel tank.
Check for leaks in the fuel lines between the fuel tank and the fuel transfer pump. Repair any leaks that are found. Check the fuel pressure in order to ensure that the fuel transfer pump is operating properly. For information about checking the fuel pressure, see Testing and Adjusting, “Fuel System Pressure - Test”. g00923080 Illustration 40 (1) Hole for crankshaft pin (2) Hole for camshaft pin 1. Remove the valve mechanism cover, the glow plugs, and the cover for the front housing. Note: The crankshaft timing pin can be inserted with the crankshaft pulley still on the engine. 5.
If the source of the air is not found, disconnect the supply line from the fuel tank and connect an external fuel supply to the inlet of the fuel transfer pump. If this corrects the problem, repair the fuel tank or the stand pipe in the fuel tank. 2. Rotate the crankshaft in the normal direction of the engine until the inlet valve of the No. 4 cylinder has just opened and the exhaust valve of the No. 4 cylinder has not completely closed. 3. Carefully rotate the crankshaft in the normal direction of the engine in order to align the hole in the crankshaft with the hole in the cylinder block and the timing case.
Insert the 27610211 Crankshaft Timing Pin fully into the hole in the crankshaft web. i02242740 Finding Top Center Position for No. 1 Piston 4. Insert the 27610212 Camshaft Timing Pin through the hole in the camshaft gear and into the body of the timing case. The engine is set at the top center position for No. 1 piston. Table 1 Note: The camshaft gear can rotate a small amount when the pin is installed. 5. Remove the timing pins from the camshaft gear and the crankshaft web. Required Tools Part Number Part Description Qty 27610211 Crankshaft timing pin 1 27610212 Camshaft timing pin 1