Mopar 5184352AF Chain-Timing Secondary

The oil pump is an integral component of the balance shaft module and cannot be removed or disassembled from it; if there is a problem with the oil pump, the entire balance shaft module must be replaced. To begin removal, relieve the fuel system pressure and disconnect the negative battery cable from the remote ground terminal or battery. Rotate the engine to Top Dead Center for the #1 cylinder on the compression stroke. Loosen the lug nuts on the right front wheel, raise the vehicle, and support it securely on jackstands. Remove the right front wheel, splash shield, and inner fender shield, followed by the valve cover and oil pan. Next, remove the timing chain cover, timing chain, and crankshaft sprocket. Align the drive chain plated links with the timing marks on the crankshaft sprocket and the Balance Shaft Module drive gear; if the marks cannot be found, mark the oil pump/Balance Shaft Module drive chain to the BSM drive sprocket and crankshaft gear for proper installation. Press the oil pump/BSM tensioner piston back into the tensioner body, retaining it in the locked position with a special tool or a 3 mm drill bit. Do not remove the oil pump/BSM drive sprocket. Remove the BSM mounting bolts in reverse order of tightening, lowering the rear of the balance shaft module, removing the timing chain from the sprocket, and then the BSM itself. Remove the chain from the crankshaft sprocket. If necessary, replace the crankshaft front seal within the oil pump body. Two different lengths of mounting bolts can be used on the BSM: 180 mm and 185 mm; discard the 180 mm bolts and replace them with new ones, measuring the BSM mounting bolts and replacing as needed. Check the threads of each 185 mm mounting bolt with a straightedge or ruler; if there is a gap, replace the bolts and apply clean engine oil to the threads before installation. Clean the bolt holes for the BSM mounting bolts, then place the timing chain over the crankshaft sprocket, aligning the plated link with the timing mark or previously made marks. Lift the BSM and place the drive sprocket into the timing chain, aligning the plated link with the timing mark on the drive gear. While holding the BSM in place, insert the mounting bolts and tighten by hand in several even stages, then tighten the bolts in the recommended sequence to the specified torque. The final step requires tightening the bolts a specific number of degrees; an angle-torque gauge is recommended for this procedure. After tightening, remove the pin from the tensioner and release the piston, verifying that the timing marks are aligned. Install the timing chain and timing cover, followed by the oil pan and valve cover. The remainder of the installation follows the reverse order of removal. Finally, install a new oil filter and engine oil, start the engine, check for oil pressure and leaks, and recheck the engine oil level.

In order to examine the timing chain, the first step sanctioned is the removal of the timing chain cover. If an engine has many miles on it, or if there is visible damage to the chain, or if the amount of freeplay beyond the two small pins that secure the chain exceeds one inch, then a new timing chain should be installed because as the chain wears, the engine will not idle smoothly, lose power, and experience decreased fuel efficiency, and the chain can 'jump' timing or break which will damage the engine. Loosen the tension of the timing chain cover and bolt down the vibration damper so that crankshaft is turned such that the arrow on the crankshaft sprocket aligns with the top and of the camshaft sprocket arrow should be resting at the bottom. To do so, undo the camshaft sprocket bolt with some measures and then with your hands cautiously push the camshaft sprocket from the dowel pin with the help of two big screwdrivers. Timing chains and sprockets should be replaced in sets: when installing a new timing chain, eliminate the crankshaft sprocket with the aid of a puller and install a new one, such that the key in the crankshaft fits into the keyway of the sprocket. Check timing chain dampener for signs of cracking and replace it, if required; use solvent to wash timing chain and sprockets and if possible blow them dry with compressed air. Zebras should be checked for signs of wear and damage, in particular, deformed, chipped, pitted or cracked teeth will be apparent here. For installation, bring the camshaft to bottom with the dowel pin, fix the timing chain with the camshaft sproket, engage the timing chain with the crank sprocket so that the marking touch each other. If the crankshaft to be disturbed, rotate it in the direction of arrow until the crankshaft sprocket arrow is pointing upward and if the camshaft is to be rotated temporarily fit the sprocket and rotate camshaft until the marking on the camshaft sprocket is at the bottom and arrow will point each other simultaneously the reference link mark of chain will be in time with the marks. Place the camshaft sprocket bolt and fasten it properly according to the indicated torque, with engine oil to lubricate the area for wear and tear on the chain and sprocket, put back the timing chain cover and do the rest of the assembling in the opposite manner to its removal.

Pull the clamp off the negative terminal of the battery, and drain the coolant. Lift the front-end of the vehicle off the ground by using jack and support the car by using jackstands, and then dispose of the engine oil of the car. The drive belt and the tensioner must be taken out, together with the oil pan and the oil pump pick-up tube. Next remove the alternator bolts and set the alternator aside and unbolt the air conditioning compressor from its mounting location and move it to the fender using ties to clear the area of the work. Crankshaft pulley, the radiator lower hose, the heater hose from the timing chain cover housing or the water pump inlet for the oil cooler based models should be taken off. Extract the camshaft sensor of the timing chain cover and then, remove the water pump. Sling off the power steering pump and place aside, then remove the timing chain cover-to-engine block bolts. Approximately screw the crankshaft pulley bolt and then rotate the crankshaft until the timing marks on the crankshaft and camshaft sprockets coincide with each other with the arrow of crank shaft pointing upwards and arrow of the cam shaft sprocket downwards. Loosen the camshaft sprocket bolt without rotating the camshaft and using two large screwdrivers, carefully push the sprocket forwards. Perfect sets of timing chains and sprockets should be interchanged; when fitting a new timing chain, remove the crankshaft sprocket with a puller, and fit a new one to mesh with the key in the crankshaft and the keyway in the sprocket. Check the timing chain using a magnifying glass to find out if the timing chain dampener is worn out or cracked, if so replace. Remove the timing chain and sprockets and wash them with solvent and dry them with compressed air, check for wear and damages; if afraid damage or excessive free play replace the timing chain and sprocket. You may require a gasket scraper to avail the old gasket material and sealant from the cover and engine block but be careful so that you do not harm the aluminum cover. Wipe the gasket sealing surfaces with lacquer thinner or acetone and align the dowel pin of the camshaft at the down motion. Mesh the timing chain with the camshaft sprocket and then mesh the crankshaft sprocket with the timing chain to align to the timing marks. Should the crankshaft have been advanced, rotate it till the arrow is pointing upwards on the crankshaft sprocket, and were the camshaft advanced, place the sprocket loosely then adjust till the markings match. Fit in the camshaft sprocket bolt and tighten to the recommended torque value, with the camshaft sprocket splined-ID, lubricate the chain and sprocket with fresh engine oil, and apply a new gasket on the cover to stick to it until the gasket lays flat on it. Fit the cover to the engine block in such a manner that the oil pump gear flats will fit over the crankshaft flats, torque the bolts to the prescribed standard in a zigzag manner. Other components are reinstalled in the reverse order to how they were removed. Last of all, pour in the oil and the coolant as well start the engine and visually ensure that there is no leakage.

Set the number one piston at Top Dead Center and remove the timing chain cover. Slip the oil slinger off the crankshaft, noting that the cupped side faces away from the engine, and reinstall the vibration damper bolt. Using this bolt, rotate the crankshaft clockwise just enough to take up the slack on one side of the chain. Count the pins on the timing chain; the correct timing chain has 48 pins, and a chain with more pins will cause excessive slack. Establish a reference point on the block, move the slack side of the chain from side to side with your fingers, and measure the movement; the difference between the two measurements is the deflection. If the deflection exceeds 1/2-inch, replace the timing chain and sprockets. Align the sprocket timing marks by installing the timing chain with the sprocket index dots directly opposite each other. Remove the camshaft thrust pin and spring, as well as the sprocket retaining bolt and washer, using a large screwdriver through one of the holes in the sprocket to keep it from turning. Pull the crankshaft sprocket, camshaft sprocket, and timing chain off as an assembly. Ensure the crankshaft key is still pointing up and note the locations of the locating dowel on the camshaft and the corresponding hole in the cam sprocket, ensuring they are aligned properly during installation. Pre-assemble the timing chain, crankshaft sprocket, and camshaft sprocket with the timing marks aligned and facing out, then slip the assembly onto the engine so that a line drawn through the timing marks passes through the centers of the sprockets. Install the camshaft sprocket bolt and tighten it to the torque, then reinstall the thrust pin and spring. To verify the correct installation of the timing chain, turn the crankshaft clockwise until the camshaft sprocket timing mark is at the one o'clock position, positioning the crankshaft sprocket timing mark where the adjacent tooth meshes with the chain at the three o'clock position, ensuring there are 15 chain pins between the sprocket timing marks. New replacement chains and gears no longer require pins to be counted; simply line up the timing marks on the gears dot to dot and install the gears and chain. Install the crankshaft oil slinger on the crankshaft with the cupped side facing out, then install the timing chain cover and vibration damper. Reinstall the remaining parts in the reverse order of removal, run the engine, and check for oil leaks and proper operation.