Toyota 11101-21062 Head Sub-Assembly, Cylinder

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First of all, inspect the head for cracks, leakage, and distortion. Check valve seats for damage and replace or recut if needed. Replace worn valve guides and tappet bores. Examine camshaft bearing surfaces and valves for wear and damage. Measure valve stem diameter and replace worn valves. Grind valves into seats using carborundum paste. Check valve springs for damage and replace them if needed.

Reconditioned cylinder heads can be more cost-effective for home mechanics than reconditioning the original due to the need for specialized tools. The removal process involves, removing the cylinder head and brackets. Storing removed tappets. Using a valve spring compressor to remove split collets. Lightly tap the tool if the spring upper seat sticks. Removing and deburring the valve through the combustion chamber. Removing valve stem seals with pliers. Storing removed valve spring lower seats with springs.

Fit the valve springs and upper seats in their original locations.

The reverse steps of removal should be followed, ensuring all fasteners are tightened and allowing time for sealant to cure before starting the engine.