Honda 15100-P06-A02 Pump Assembly, Oil

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If you are replacing the oil pump you will need to, disconnect the battery negative terminal, lift the vehicle, drain the oil, and remove the oil pump. Take No 1 cylinder to TDC with a timing mark on the crankshaft pulley being in line with the mark on the front cover. Take off the necessary accessory drive belts; the crankshaft pulley, and the valve cover, together with timing belt covers. Then, you have to remove timing belt tensioner, timing belt and timing belt drive pulley, also remove oil pan and oil screen, and at last oil pump mount bolts and Oil pump assembly. For installation, simply, undo the following steps and make the sure the gasket mating surfaces are correctly clean. Before the installation of the oil pump, perform a check on the crankshaft oil seal and if it has developed a problem then should be replaced. Use liquid gasket on the cylinder block mating surface and also put thin coat of oil on the crankshaft seal lips. Insert new O-ring at the cylinder block and at the oil pump and apply liquid gasket at the thread of the oil mounting bolts and tighten to 9 ft. lbs. (12 Nm). Trim the screen and the subsequent oil pan back into position, make certain that the timing belt tension is okay and torque the crankshaft pulley bolt to the correct value. In overhaul of oil pump, the rotor radial clearance, both inner and outer rotors, should be set to 0.14 mm. Loosen the tone wheel lock nut and with feeler gauge identify how much body-to-rotor clearance there is new, and should be 0.10-0.18mm new, service limit 0.200mm. Measure the end play of the rotor between the rotor face and the gasket surface new specification, 0.025-0.100mm NS but with service limit of 0.152mm. If rotors are degraded and they require replacement, they must be replaced with the inner and outer rotors with their punch marks facing upwards. Apply petroleum jelly to the inside and outer surface of the pump cavity, screw in, and replace the assembly in the reverse of the steps above.

To remove the timing belt, it is necessary to take out the oil pan, together with the oil pick-up tube and screen which is located in the pump housing and the main bearing cap bridge, but before doing this, it is necessary to remove the oil pick-up tube bolts from the oil pump and the main bearing cap bridge. After that, remove the bolts that fasten the assembly to the engine and, thus, remove the complete assembly of the oil pump; further, disassemble the oil pump by unscrewing the screws from it; it is possible to use an impact screwdriver for using the pump cover screws not to damage them. For inspection, the clearances on the oil pump rotors can be gauged using a feeler gauge and a straight edge, with the help of limits set for the same; and the pump can then be replaced if the clearances do not lie within the stipulated range. Unscrew the pressure relief valve plug to take out the spring and plunger and see if it is distorted and scored as well as worn out; change the components, if necessary. During installation, fill the inter-teeth clearance of the rotors with petroleum jellies for purpose of pumping, apply a thread-locking compound on the pump cover screws and engaging the cover followed by tightening the screws to the recommended torque. Replace the pressure relief valve and spring and place a new washer on the plug, and then tighten it in position. Install a new O-ring and a thin layer of RTV sealant on the pump housing-block sealing surface and fasten the pump housing to the engine block by using bolts tightened to the requested torque. Subsequently, replace the oil pick-up tube and screen having new gasket bolts that must be fastened with the corresponding torque. Lastly, perform the removal process in the reverse and add the specified type and quantity of oil and coolant, start the engine and check for leaks.