Toyota 11101-09071 Head Sub-Assy, Cylinder

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Ensure the head is clean before reassembly, even if it was sent for valve servicing. If so, valves and components will be in place. Check the valve spring height with a caliper. Install new seals on valve guides, distinguishing intake and exhaust seals. Tap each intake valve seat into place. Use a socket and hammer to tap valve seals into place. Apply grease or oil to the valve stem before installing the first valve. Place the spring seat or shim(s) over the valve guide and set the spring and retainer. Compress the springs with a compressor and install the keepers. Release the compressor slowly and ensure keepers seat properly. Apply grease to each keeper if needed. Repeat for remaining valves, returning components to original locations. Check the valve spring height again with a caliper.

To prepare for reinstallation, ensure that the mating surfaces of the cylinder head and block are impeccably clean, removing all traces of carbon and old gasket material. Check for any nicks, deep scratches, or other damage on the block and head mating surfaces. Additionally, 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.

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.

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.

If a valve binds in the guide, it should be pushed back into the head and the area around the keeper groove should be deburred with a fine file or whetstone.

To remove the cylinder head, you need to carefully loosen the cylinder head bolts in 1/4-turn increments until they can be removed by hand. It's crucial to loosen them in this specific manner to prevent warping or cracking of the cylinder head. The cylinder head can be lifted off the engine block, and if it's stuck, it should be cautiously pried up at the transaxle end, beyond the gasket surface.

Use a tap of the correct size to chase the threads in the cylinder head bolt holes, then clean them with compressed air to ensure nothing remains in the holes.

Yes.

The first valve can be removed by compressing the springs with a spring compressor, removing the keepers, and then carefully releasing the valve spring compressor to remove the retainer, spring, and spring seat.

Thoroughly clean the cylinder head(s) and related valve train components, followed by a detailed inspection to determine the necessary valve service work during the engine overhaul.

Repeat the procedure for the remaining valves, ensuring to return the components to their original locations and not to mix them up.

Before the valves are removed, it is important to label and store them along with their related components to keep them separate and ensure they can be reinstalled in the same valve guides they were removed from. A small plastic bag with an appropriate label can be used for this purpose.

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

Refill the cooling system, change the oil and filter, run the engine, and check for leaks.

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.