Lexus 11102-29056 Head, Cylinder, LH

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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.

Valve train components such as lifters, valve springs, spring seats, keepers, and retainers should be cleaned with solvent and dried thoroughly before inspection.

It may be more practical and economical for a home mechanic to purchase replacement heads because specialized tools are necessary for disassembly and inspection procedures, and replacement parts may not be readily available.

To remove the cylinder heads, carefully lift each head off the engine block. If a head is stuck, you can use a wood block and hammer to aid in its removal. This process should be repeated for both cylinder heads if necessary.

Apply moly-base grease or clean engine oil to the valve stem.