Genuine Chevrolet El Camino Cylinder Head

Chevrolet El Camino Cylinder Head Parts Questions & Experts Answers

• F, Head, Reman
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  Q: What are the steps involved in removing and overhauling the cylinder heads equipped with AIR in V6 engine on Chevrolet El Camino?

  A: Due to the similarities between the 200/229 V6 and the VS engines, on vehicles equipped with AIR, disconnect the rubber hose at the injection tubing check valve to avoid removing the tubing from the exhaust manifold. Begin by removing the intake manifold and draining coolant from the engine. When removing the right cylinder head, loosen and remove drive belts, disconnect generator wires, and if equipped with air-conditioning, remove the compressor from the mounting bracket and position it out of the way with hoses connected before removing the generator with its bracket. For the left cylinder head, remove the oil dipstick rod and tube, and if applicable, remove the power steering pump gear pump with its mounting bracket and move it aside with hoses attached. Mark the positions of the spark plug wires with tape, disconnect them, and remove the spark plug wire clips from the rocker arm cover studs. Next, remove the exhaust manifold and bolts, then carefully clean the dirt and grease from each cylinder head, valve cover, and surrounding area to prevent grit from entering the engine, as this can damage hydraulic valve lifters. Remove the rocker arm cover attaching bolts and lift the cover off the cylinder head, breaking the gasket seal if necessary without prying on the sealing surfaces. Keep pushrods, lifters, and other valve mechanism components separate and in order for re-installation, using a numbered rack or cardboard with holes. Remove the bolts holding the rocker arm shaft assembly to the cylinder head, lift off the assembly, and place the pushrods in the numbered rack or cardboard. Loosen the cylinder head bolts gradually and remove them, keeping track of their length and location. Lift the cylinder head off the engine, using a hammer and block of wood to tap upward at each end if it is stuck, and set it on wood blocks to prevent damage. At this point, decide whether to overhaul the cylinder heads yourself, exchange them for new or rebuilt units available at GM dealers or auto parts stores, or take them to a competent machine shop or GM dealer for the overhaul process. If choosing to overhaul the cylinder heads, gain an understanding of the necessary steps, tools, and replacement parts involved.
• Cylinder Head Assembly
  22530557
  Q: How to assemble a Cylinder Head in V8 engine on Chevrolet El Camino?

  A: Check that all parts of the valve mechanism are clean and free from carbon and dirt; the bare cylinder head should be clean with no abrasive particles which were used on valve reconditioning. Install a valve in the right port and fit the valve spring assembly of that cylinder which includes; spring, damper, shield, and cap. Fit the valve spring compressor over the valve stem and tighten to squash the assembly together. Mount a new oil seal in the lower groove of the valve stem, it should lie flat and should not be twisted. After that, tighten the valve locks and then open the compressor where the lock must sit well in the upper catch of the valve stem. Measure the installed height of the valve springs by using a narrow thin scale from the top of the shim if fitted, or from the spring seat to the top of the valve spring or spring shield if used. Should the valve spring installed height be slightly less than the minimum specified length, shims may be inserted under the spring to provide the required installed height but the latter should not be less than the minimum specified length. If the spring is rather short, it is necessary to change it to a new one.