Mopar 53021622BG Pump-Engine Oil

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The oil pumps on early model of replacement may have pressure difficulties because of the failure in the pressure relief valve and spring, causing an expansion plug instead of a threaded plug in sealing the said valve and spring within the pump. First of all to start removal reverse the sequence and remove the primary timing chain and crankshaft sprocket make sure the mark on the crank shaft sprocket and oil pump housing coincide and do not rotate the crank shaft from this position, which is 60 degree after TDC. Subsequently, take off the oil pan, and then the oil pump pick-up tube, and the oil pump-to-engine block screws from the front of the engine. With some force push the housing in the clockwise direction to remove the dowel pins on the engine block and then pull it out. Worn bearings tend to have a looseness that can be felt during normal disassembly, removal of the screws holding the front cover on the oil pump housing, cleaning all surfaces with solvent and looking for any signs of wear and damage. Screw out the oil pressure regulator cap, washer, spring, and valve and inspect the oil pressure relief valve sliding surface and the valve spring; if the latter is worn out, so is the former and they must be replaced together. Measure the flatness of the cover using a feeler gauge, the outer rotor diameter and thickness and the inner rotor thickness with either a micrometer or a dial caliper and also several clearances. If any of them is oversized, it is advisable to change the whole oil pump assembly. Coat the pump with petroleum jelly to ensure that it is primed, proceed and fit the oil pump, and at last tighten all the screws to the recommended torque. Fit in the oil pressure regulator valve, the spring and washer before tightening the cap of the valve. To install remove the bolts of the pump, fit the flats of the rotor to the similar flats available in the crankshaft, use pump-to-block bolts, and tighten to the recommended torque before following the procedure in the reversal of the above passage.

Disconnect the cables from the negative terminals of the batteries. Remove the gear housing cover. Measure the backlash between the gears using a dial indicator. Install the dial indicator tip against one of the teeth on the idler gear and twist the idler gear back and forth. Place the dial indicator tip on the oil pump drive gear and check the backlash between it and the idler gear while securely holding the idler gear from moving. Remove the four mounting bolts and remove the oil pump assembly from the gear case. Remove the back plate of the oil pump assembly. Clean the top of the gerotor planetary of oil and use a felt pen or paint to mark it with the word TOP. Remove the components, clean them with solvent and dry them thoroughly. Assemble the components back in the oil pump housing. If any clearance is beyond that, replace the oil pump assembly. If the original pump is being reused, fill the pump cavity with engine oil and reinstall the back cover, then install the pump assembly in the gear case and tighten the mounting bolts to the torque. The remainder of installation is the reverse of removal. Refill the crankcase with oil, start the engine, and check for leaks and proper oil pressure.

Disconnect the cable from the negative side of the battery terminal to remove the oil pump. Then, lift the front part of your car and firmly support it on jackstands. After that, drain the engine oil and remove lower splash shield together with skid plate. Proceed by taking out upper as well as lower oil pans. Pick up tube and solenoid electrical connector need to be disconnected for oil pump. The next step is to remove chain tensioner before reaching for timing gear splash shield of oil pump. At this point, make marks on chain and oil pump gear. Lose T45 Torx mounting bolt while holding onto an oil pump gear. Next, let spring go off then take out tensioner from housing of an oil pump. To sum up on this section, take off mounting bolts that fixture as well as the whole pumper device itself in addition to many others.Inspecting whether any damage or warpage occurred involves cleaning all parts thoroughly while doing so. It is also important to determine rotor thickness along with clearance between rotor and its housing in order to ascertain right measurements during installation process. Simultaneously, measure gap present within inner plus outer rotors' lobes working towards evaluation of their position now that measuring becomes practical here too through utilizing precise caliper values hence defying approximate values like never before! When any measurement exceeds what should be at its best reference point then replace which one has came with a new better one.For putting back the machine into operation fix it by using aligning dowels as well as fastening screws according to where you want these things positioned including tightening them too when necessary; just put everything back into place starting right from this very end toward replacing engine's position inside block meanwhile insert piston rod being held on one side only since there's another bar inserted throughout opening which is located in cylinder head at an angle against crankshaft turns.At long last, complete the installation process in reverse whatever was done earlier on while refilling engine to full capacity with oil and replacing filters in-between.

Remove the oil pump mounting bolts and the pump itself.

Measure the oil pump cover for warpage using a straightedge and feeler gauge, and if warped beyond the limit, replace the pump.

The remainder of the installation follows the reverse order of removal.

Tighten the oil pump/primary timing chain tensioner bolts to the specified torque.

Tighten the oil pump/primary timing chain tensioner bolts to the specified torque.

Before removing the oil pump, you should start by disconnecting the cable from the negative terminal of the battery. Then, raise the front of the vehicle and support it securely on jackstands. Additionally, drain the engine oil and remove the skid plate and lower splash shield.

Assemble the components back in the oil pump housing.

The remainder of the installation is the reverse of removal. Fill the crankcase with the proper type and quantity of engine oil, and install a new oil filter. Fill the cooling system with the proper type of coolant. Run the engine and check for oil pressure and leaks.

To remove the oil pump, follow these steps: Disconnect the oil pump pick-up tube and solenoid electrical connector. Remove the oil pump timing gear splash shield and press the oil pump chain tensioner away from the chain. Make reference marks on the chain and oil pump gear. Hold the oil pump gear and remove the T45 Torx mounting bolt. Release the tensioner and remove the spring and tensioner from the oil pump. Finally, remove the oil pump mounting bolts and the pump itself.

The oil pressure relief valve must not be removed from the oil pump housing on this engine.

Replace the oil pump assembly.

The oil pressure relief valve must not be removed from the oil pump housing on this engine.

Removal of the relief valve and spring from the oil pump housing will damage the oil pump and require replacement of the entire oil pump assembly.