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4. Install the oil pump into the engine (see Right-Side Components in Section 3). Testing Oil Pump Pressure NOTE: The engine must be warmed up to operating temperature for this test. 1. Connect the Arctic Cat Engine Tachometer (p/n 0644-275) to the engine. 2. Connect the Oil Pressure Gauge (p/n 0444-039) to the oil filter drain plug. NOTE: Some oil seepage may occur when installing the oil pressure gauge. Wipe up oil 3. Start the engine and run at the specified RPM. 4. The oil pressure gauge must read as specified. 250/300 cc OIL PRESSURE @ 1275 RPM 0.7-2.8 kg/cm 2 (10-40 psi) Oil Temperature-60°C (140°F) 400/500 cc ( Manual Transmission) OIL PRESSURE @ 1275 RPM 1.3-1.7 kg/cm 2 (18-24 psi) Oil Temperature-60°C (140°F) 500 cc (Automatic Transmission) OIL PRESSURE @ 3000 RPM 1.9-2.5 kg/cm 2 (27-36 psi) Oil Temperature-60°C (140°F) NOTE: If the oil pressure is lower than specified, check for an oil leak, damaged oil seal, or a defective NOTE: If the oil pressure is higher than specified, check for too heavy engine oil weight (see Oil Cooler (250/300 cc) Fig. 4-114 0733-727 REMOVING NOTE: It is not necessary to drain the engine oil for this procedure. 1. Remove the input and output hoses from the fittings on the cooler. Elevate and secure the hoses to avoid oil 2. Remove the torx-head screws securing the oil cooler to the frame. Account for grommets, collars, Fig. 4-115 AL651D 3. Remove the oil cooler from the frame. KEY 1. Oil Cooler 10. O-Ring ! CAUTION 4-28 |