Toyota 11101-21031 Head Sub-Assy, Cylinder

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If a new head is being installed and coolant hose outlet pipes are missing, get new ones. Apply adhesive to each pipe's bottom end and press the radiator hose into the cylinder head 15 mm deep, and the bypass hose pipe 18 mm deep. Mark the correct depth on each pipe, then press each in squarely with a hammer and wood block. Reinstall all sixteen valve spring lower seats. Lubricate the valve stem oil seals with engine oil and push them into the cylinder head using a socket. Lubricate the valve stems and insert them, ensuring not to damage the oil seal. Fit the valve springs and upper seats, compress the valve spring and locate the split collets in the valve stem. Repeat for all valves. Tap the end of each valve stem to settle the components. Refit the removed components.

Check the surface for distortion.

On later models, the plenum should be removed to gain better access.

New and reconditioned cylinder heads can be obtained from manufacturers or engine overhaul specialists.

Install the bolts in their original locations and tighten them finger tight, then follow the recommended sequence to tighten in three steps, with the final step requiring an additional 90 degrees of tightening.