Nissan 22162-85E00 Cap-DISTRIBU

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The spark plug wires should be checked whenever new spark plugs are installed, starting with a visual inspection while the engine runs in a darkened, ventilated area to observe for arcing or sparks at any damaged areas. Each wire must be inspected individually to maintain the correct order for proper engine operation, and original wires should be numbered for identification; if numbers are illegible, tape can be used to mark them. To disconnect a wire, use a removal tool or twist and pull the rubber boot without tugging on the wire itself, then check for corrosion inside the boot. After ensuring a tight fit on the spark plug, clean the wire with a rag, inspecting for burns or cracks without bending it sharply. Disconnect the wire from the distributor by pulling on the boot, checking for corrosion and fit before replacing it. Inspect all spark plug wires to ensure they are securely fastened at both ends. If new wires are needed, purchase a set specific to the engine model, replacing them one at a time to avoid mix-ups. Detach the distributor cap by loosening the screws, checking for cracks and worn contacts inside, and examine the rotor for damage, replacing both if necessary. It is advisable to install a new cap and rotor with new wires, but if the old cap is retained, check the resistance between the wires and the cap. When installing a new cap, transfer the wires from the old cap one at a time to maintain the correct firing order.