Mopar 4892070AA Head-Cylinder

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To remove the components, begin by loosening the lug nuts on the right front wheel, raising the vehicle, and securing it on jackstands. Remove the right front wheel, splash shields, and inner fender liner. Position the number one piston at Top Dead Center and disconnect the negative battery cable from the remote ground terminal. Remove the engine cover, drain the cooling system, and take out the spark plugs. Next, remove the air filter housing, coolant reservoir, and power steering reservoir without disconnecting the lines. Remove the drivebelts and the intake manifold, covering the intake ports with duct tape. Detach the power steering hose bracket bolt and secure the pump out of the way without disconnecting the hoses. Remove the exhaust manifold, ignition coils, and spark plugs, followed by the valve cover. Take off the water pump pulley, air conditioning compressor, and bracket, then remove the timing chain cover and timing chain. Remove the camshaft bearing caps, camshafts, and lifters, storing the lifters for reinstallation in their original locations. For 2015 and later models, remove the WAA assembly. Loosen the cylinder head bolts in reverse of the tightening sequence until they can be removed by hand, taking notes on their locations. Carefully lift the cylinder head straight up, placing it on wood blocks to prevent damage. If it sticks, dislodge it gently. After removal, use needle nose pliers to take out the WT filter from the engine block and clean all old gasket material from the block and head, ensuring no debris falls into the engine. For installation, place a new or cleaned WT filter into the cylinder block, apply RTV sealant at the timing chain side ends, and position a new gasket and the cylinder head. Check the head bolt threads for gaps and apply clean engine oil before installation. Place washers on the first two head bolts, install the head bolts, and tighten them in stages according to the recommended sequence. Ensure to identify the type of cylinder head bolts for proper torque. The final tightening requires a specific number of degrees, which can be measured with an angle-torque gauge. Reinstall the timing chain and cover, then follow the reverse order for the remaining installation steps. Refill the cooling system, change the engine oil and filter, and rotate the crankshaft clockwise through six complete revolutions, rechecking the camshaft timing marks. Finally, start the engine and run it until normal operating temperature is reached, checking for leaks and proper operation.

To access the cylinder heads, you should remove the intake manifold, exhaust manifold(s), valve covers, rocker arms, and pushrods.

Position the new gasket over the dowel pins, check camshaft installation, and place the head on the block without disturbing the gasket.

Loosen the cylinder head bolts in 1/4-turn increments in the reverse order of the tightening sequence to prevent head warping or cracking.

Take off the timing belt covers, align the TDC marks, and remove the timing belt, marking its direction of rotation if it is to be reused.

Position the new gasket over the dowel pins and carefully place the cylinder head on the engine block.

Remove the air filter housing, coolant reservoir, and power steering reservoir.

Next, remove the camshafts from the cylinder head, followed by the rocker arms and hydraulic lash adjusters, ensuring to label and store them for reinstallation in their original locations.

Loosen the cylinder head bolts in reverse order of tightening.

Install the lash adjusters and rocker arms in the cylinder head, followed by the camshafts, and then install the primary timing chain and sprockets.

Ensure the mating surfaces of each cylinder head and block are perfectly clean, using a gasket scraper to remove all traces of carbon and old gasket material, then clean with lacquer thinner or acetone.

If the camshaft needs to be removed, it should be done with the cylinder head off.

Remove all external components from the cylinder head for thorough cleaning and inspection before sending the cylinder head for servicing at an automotive machine shop.

Carefully place the heads on the block without disturbing the gaskets.

Carefully place the heads on the block without disturbing the gaskets.

Loosen the cylinder head bolts in 1/4-turn increments in the reverse order of the tightening sequence to prevent head warping or cracking.

Prior to commencing the procedure, it is essential to have the required special tools on hand.