Toyota 11101-09070 Head Sub-Assy, Cylinder

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The cylinder head should be cleaned with solvent and dried thoroughly before inspection. This ensures that any contaminants or residues are removed from the surface.

Once the valves and related components have been removed, the head should be thoroughly cleaned and inspected.

After installing the cylinder heads, you should refill the cooling system, change the oil and filter, run the engine, and check for any leaks.

Slowly release the compressor and ensure the keepers seat properly.

Ensure the engine is completely cool before proceeding with the removal process. Start by disconnecting the negative battery cable and draining the coolant from the engine block and radiator. On Solara models, remove the front suspension upper brace. Additionally, drain the engine oil and remove the oil filter. Follow by removing the throttle body, fuel injectors, and fuel rail, as well as the intake manifold and exhaust manifold. Remove the timing belt, camshaft sprocket, and upper idler pulley, and take off the upper rear (no.timing belt cover. Disconnect the camshaft position sensor at this point. Continue by removing the camshafts and lifters, followed by the alternator and distributor. Unbolt the power steering pump, setting it aside without disconnecting the hoses. Label and remove any remaining items such as coolant fittings, tubes, cables, hoses, or wires. Now, you're ready to remove the cylinder head. Carefully loosen the cylinder head bolts in 1/4-turn increments until they can be removed by hand, taking care to loosen them opposite the recommended tightening sequence to prevent warping or cracking. Lift the cylinder head off the engine block, and if it's stuck, cautiously pry up at the transaxle end, beyond the gasket surface. Remove all external components from the head for cleaning and inspection. For installation, ensure the mating surfaces of the cylinder head and block are impeccably clean, removing all traces of carbon and old gasket material. Check for nicks, deep scratches, or other damage on the block and head mating surfaces. Use a tap to chase the threads in the cylinder head bolt holes and clean them with compressed air. Run a die down the threads of each bolt to remove corrosion. Apply clean engine oil to the threads before installing the bolts, positioning them in their original locations, and tightening them following the recommended sequence. Lastly, reinstall the components removed earlier, set the valves, refill the cooling system, add oil, check for leaks, set ignition timing, and conduct a road test.