Toyota 11101-09070 Head Sub-Assy, Cylinder

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Ensure the engine is cool before starting. Disconnect the battery cable, drain coolant and engine oil. Remove front suspension upper brace on Solara models, throttle body, fuel injectors, intake and exhaust manifold, timing belt, camshaft sprocket, upper idler pulley, camshafts, lifters, alternator, distributor, and power steering pump. Loosen cylinder head bolts in 1/4-turn increments, then lift the cylinder head off the engine block. Remove all external components from the head for cleaning. Ensure the mating surfaces of the cylinder head and block are clean, removing all traces of carbon and old gasket material. Check for damage on the block and head mating surfaces. Clean the threads in the cylinder head bolt holes and apply clean engine oil to the threads before installing the bolts. Reinstall the components, set the valves, refill the cooling system, add oil, check for leaks, set ignition timing, and conduct a road test.

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

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.

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.

Check for nicks, deep scratches, and other damage.

Beginning at one end of the head, lubricate and install the first valve by applying moly-base grease or clean engine oil to the valve stem.

Use an appropriate size tap to remove corrosion and thread sealant from each of the threaded holes, and use compressed air to clear the holes of debris.

If the valve binds in the guide and won't pull through, push it back into the head and deburr the area around the keeper groove with a fine file or whetstone.

Position the cylinder head gasket on the engine block so that the lot number stamp is on the center upper edge of the gasket facing up, then carefully place the cylinder head on the head gasket.