Nissan 15010-7Y000 Pump Assembly-Oil

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The oil pump is located inside the timing chain cover and is driven by the crankshaft, requiring the removal of the timing chain cover for access. Begin by removing the bolts or screws that secure the oil pump cover to the oil pump body, then disassemble the inner and outer rotors, taking care to avoid any nicks or damage, as these can affect oil pressure and necessitate replacement of the entire pump and timing chain cover assembly. Clean all components, including the timing chain cover and engine block gasket surfaces, with solvent, and inspect for excessive wear or damage. Disassemble the relief valve by removing the cap, washer, spring, and regulator valve, checking the sliding surface and valve spring for damage; if either is damaged, replace them as a set. If no damage is found, reassemble the relief valve parts with clean engine oil and reinstall it in the oil pump cover. Check the oil pump component clearance with a feeler gauge and compare the results; if any specifications are exceeded, replace both the timing chain cover and the oil pump components. Assemble the oil pump components, ensuring the punch marks on each rotor face away from the timing chain cover and toward the engine, then pour clean engine oil into the pump cavity and around the rotors before installing the cover and tightening the fasteners to the specified torque. Install the timing chain cover with a bead of RTV sealant on the cover-to-block surface, aligning the flats on the inner oil pump rotor with the crankshaft during installation. Next, install the oil pan, a new oil filter, and add engine oil to the crankcase. Start the engine to check for oil pressure and leaks, perform any necessary re-learn procedures, and recheck the engine oil level.

To have access to the timing belt and crankshaft sprocket, it is necessary to first, strip the oil pan. Subsequently, take out the adjusting bar of the alternator and the bolt that fixes the bar to the oil pump. Take out the bolts of the power steering pump and unbolt it along with the hoses but without disconnecting them and set it aside, then removed the power steering pump bracket. Remove the oil pump to engine block bolts using the caution that you can leave the pickup tube and oil filter adapter connected to the pump if needed. Remove the oil pump gasket seal by striking it with a hammer having the tip of a block of wood on the top of the oil pump gasket seal, then, extract the oil pump from the engine block. Next, scrape and solvent the mating surfaces due to mating. For check, unscrew the bolt that is used to secure the rear cover of the oil pump to the pump, wash the components and check for wear and tear. The oil pressure regulator cap and washer, the spring and the valve should be removed and the condition of the sliding surface and of the spring should be carefully checked; as both the cap and washer, spring and valve are sold only as a complete set, since they are written off together. Using a feeler gauge check the calibration of the respective parts of the oil pump and if the clearance is high change the entire oil pump. Coat the pump in petroleum jelly to prepare the pump for moving the oil; fit the oil pump; and properly fasten the screws. Screw in the oil pressure regulator valve spring followed by the washer and the cap after it had been tightened. It is also recommended to change the O-ring on the flange of the pick-up tube oil and re-attach and tighten the bolts of the pick-up tube. To install, use ATV sealant on the surface that attaches to the oil pump, and replace any components that have been unbolted with new gaskets, and re-establish the reverse of the process of removal. Place the flats on the crankshaft to fit the flats on the oil pump gear, then tighten all bolts.

Use a large Phillips screwdriver to take off the screws securing the front cover on the oil pump housing, clean all components with solvent, and inspect for wear and damage.

Use new gaskets on all disassembled parts and reverse the removal procedure. Align the flats on the crankshaft with those on the oil pump gear, and tighten all fasteners to the specified torque. Ensure to replace the O-rings in the oil pump housing and engine block before installing the oil pan.

You have to order the pump and the gasket and o-ring come with it.