Chevrolet 10452459 Cap,Distributor

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The distributor cap mounting screws should be loosened, and on some models, the cap is held in place with latches that can be released by pushing down with a screwdriver and turning them about 1/2-turn. The cap can then be pulled up, with the wires attached, to separate it from the distributor.

It is common practice to install a new distributor cap and rotor when new spark plug wires are installed. To gain access to the distributor cap, the air cleaner assembly may need to be removed. The distributor cap mounting screws should be loosened, and on some models, the cap is held in place with latches that can be released by pushing down with a screwdriver and turning them about 1/2-turn. The cap can then be pulled up, with the wires attached, to separate it from the distributor. The rotor, which is visible on the end of the distributor shaft, should be checked for cracks, carbon tracks, corrosion, and wear. If replacement is required, the rotor can be detached from the shaft and a new one can be installed. The rotor is indexed to the shaft and can only be installed one way. The distributor cap should also be checked for carbon tracks, cracks, and other damage. The terminals on the inside of the cap should be closely examined for excessive corrosion and damage. If in doubt about the condition of the cap, it should be replaced with a new one. When replacing the cap, the spark plug wires should be transferred one at a time to the new cap, being careful not to mix them up. Finally, the cap should be reattached to the distributor and the screws should be tightened or the latches should be repositioned to hold it in place.