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Высокие технологии Cylinder head
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Inspection

Compress the spring until the collets can be removed with a small magnetic screwdriver or thin-nosed pliers

train components. They are very caustic and should be used with caution. Be sure to follow the instructions on the container.

8 Clean the followers with solvent and dry them thoroughly. Compressed air will speed the drying process and can be used to clean out the oil passages. Don't mix them up during the cleaning process; keep them in a box with numbered compartments.

9 Clean all the valve springs, spring seats, collets and retainers with solvent and dry them thoroughly. Work on the components from one valve at a time to avoid mixing up the parts.

10 Scrape off any heavy deposits that may have formed on the valves, then use a motorised wire brush to remove deposits from the valve heads and stems. Again, make sure the valves don't get mixed up.

Note:Be sure to perform all of the followinginspection procedures before concluding that machine shop work is required. Make a list of the items that need attention. The inspection procedures for the followers and camshafts can be found in Part A.

11 Inspect the head very carefully for cracks, evidence of coolant leakage and other damage. If cracks are found, check with an automotive machine workshop concerning repair. If repair isn't possible, a new cylinder head should be obtained.

12 Using a straight-edge and feeler gauge, check the head gasket mating surface for warpage (see illustration). If the warpage


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