Honda 15100-R70-A02 Pump Assembly, Oil

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To remove the timing belt, the crankshaft sprocket and the idler pulley, one has to, remove the crank shaft position sensor, the oil pan and the oil pick-up screen, and if present, the oil level probe. Then, loose the oil filler adapter housing NTEC solenoid assembly from the front of the oil pump after which loosen the bolts to come off the oil pump housing from the engine if necessary use screwdriver to pry between the main bearing cap and the pump housing. For inspection, the pump cover can be removed using a large Phillips screwdriver by unscrewing the screws at the rear of the housing and lifting off the cover to inspect the pump rotors and check for wear or damage by using feeler gauges and if the pump is found wanting, then it should be replaced. Remove any old sealant on the pump body and the engine block and use a scraper on it but be careful not to scratch the aluminum. For installation, remove the old crankshaft oil seal and coat the new one with multi-purpose grease, whereby the seal lip should be greased, fill the pump cavity with petroleum jelly and fix the cover with the help of the thread-locking compound and tighten the screws evenly in a criss-cross manner. Wipe down the gasket surfaces with acetone or lacquer thinner; coat the oil pump flange and the bolts required with the anaerobic sealant; the parts should be joined within 5 minutes of applying the sealant; replace the O-rings wherever necessary. Crank the oil pump drive rotor to the crankshaft, put in the pump, organize the mounting bolts that had been removed earlier and tighten up anew in a criss-cross manner. Replace the O-ring on the oil pick-up screen and snugly tighten the fasteners in position, then all other components in the reverse manner. The curing of the sealant takes 20 minutes after which oil is can be introduced, the engine can be started and the oil leaks and pressure checked, rechecking the engine oil level after operation.

To pull timing belt and crankshaft sprocket and idler as well as the crank shaft position sensor need to be removed. Next, the oil pan and the oil pick-up screen must be eliminated and if present, the oil level sensor as well. Remove the two bolts that secure the oil filter adapter housing/VTEC solenoid assembly to the front of the oil pump, if possible rotate the assembly so you can use your fingers to pull it off the front of the oil pump, then use a screwdriver to pry off the oil pump housing from the engine. For inspection, the pump cover has to be removed using a large Phillips screwdriver to remove the screws which hold the cover at the rear of the housing to reveal the pump rotors, and then measure gap with feeler gauge. Some signs which indicate that it is the right time to replace the pump includes some level of wear or damage found on them, if the pump body and engine block show some signs of old sealant then they should be cleaned. For installation, remove the old crankshaft oil seal and then coat the lip of the new seal with multi-purpose grease. Roughen the inner surface of the cover and coat the threads of the screws with petrroleum jelly and apply the thread-locking compound before screwing them in a cross-wise manner. Before assembling the gasket surfaces, it is recommended that they are cleaned using acetone or lacquer thinner then apply a bead of the anaerobic sealant in advance to the oil pump flange and Bolt threads and should new O-rings be used. Screw and tighten the pump mounting bolts in their positions after first putting the oil pump drive rotor into contact with the crankshaft and position the pump. It is necessary to replace the O-ring with a new one before fitting the oil pick-up screen and tightening the fasteners. The remaining parts should be refitted in reverse order The sealant should set in twenty minutes After the refitting of the parts the oil is added to the engine The next steps involve checking for oil leakage and pressure After operation of the engine, the engine oil level should be checked again.

Use a large Phillips screwdriver to take out the screws holding the pump cover to the rear of the housing.

Pack the spaces between the rotors with petroleum jelly to prime the pump.