GM Camaro 1967-1981 Repair Guide

Overhaul

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See Figures 1 through 5

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Fig. Fig. 1: Damaged bolt hole threads can be replaced with thread repair inserts



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Fig. Fig. 2: Standard thread repair insert (left), and spark plug thread insert



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Fig. Fig. 3: Drill out the damaged threads with the specified size bit. Be sure to drill completely through the hole or to the bottom of a blind hole



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Fig. Fig. 4: Using the kit, tap the hole in order to receive the thread insert. Keep the tap well oiled and back it out frequently to avoid clogging the threads



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Fig. Fig. 5: Screw the insert onto the installer tool until the tang engages the slot. Thread the insert into the hole until it is 1/4-1/2 turn below the top surface, then remove the tool and break off the tang using a punch

The section is divided into two parts. The first, Cylinder Head Reconditioning, assumes that the cylinder head is removed from the engine, all manifolds are removed, and the cylinder head is on a workbench. The camshaft should be removed from overhead cam cylinder heads. The second section, Cylinder Block Reconditioning, covers the block, pistons, connecting rods and crankshaft. It is assumed that the engine is mounted on a work stand, and the cylinder head and all accessories are removed.

When assembling the engine, any parts that will be in frictional contact must be prelubricated, to provide protection on initial start-up. Any product specifically formulated for this purpose may be used.

Do not use engine oil.

Where semi-permanent (locked but removable) installation of bolts or nuts is desired, threads should be cleaned and located with Loctite® or a similar product (non-hardening).

 
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