With great difficulty unless you have the correct socket!
I have dozens of spark plug sockets for many different types of plugs and none of them will fit down the hole in the cam cover, you need the special Mazda socket that fits in the hole.
Really silly the way they've done it, you have to spend about seven quid on a socket that you'll probably use just once!
The spark plugs on the Mazda 323 Astina are located on the engine cylinder head, typically near the top of the engine. To access them, you may need to remove the engine cover and any components obstructing the spark plug wells. Depending on the engine configuration, the spark plugs can be found in a straight line or in a staggered arrangement. Always refer to the specific service manual for your model for detailed instructions.
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To troubleshoot a Mazda 323 that is starting, turning over, and getting fuel, check the spark plugs first. You should also ensure the air filter is clean.
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The gap for spark plugs in a Mazda 323 typically ranges from 0.039 to 0.043 inches (1.0 to 1.1 mm) depending on the specific model and year. It is crucial to consult the vehicle's manual or a trusted automotive resource to ensure the correct gap for optimal engine performance. Using a gapping tool, carefully adjust the spark plug gap to the manufacturer's specifications before installation.
The correct gap for these spark plugs is 1.1mm. When you buy new plugs they should already be adjusted to the right size. My car book says to look underneath the hood at the engine specifications.
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1.00-1.10mm
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With an uncle and a hammer.
If it's electronic ignition the plug gap should be 1.1mm you buy spark plugs already sized (NGK BP5ES-11) It depends on what type of spark plugs you are using. For conventional plugs the gap of 1.0 - 1.1 mm (0.039 to 43") is correct. If you are running Platinum plugs, I like to gap at 0.005" extra (0.44 - 0.048"). I get good performance with NGK 7082 Platinum. Cheers Malcolm
A rough idle in a Mazda 323 1.6 after replacing spark plugs, plug cables, distributor cap, and rotor could be due to incorrect installation or faulty components. Check that the spark plugs are properly gapped and fully seated, and ensure the ignition wires are connected securely and in the correct order. Additionally, vacuum leaks, a dirty idle air control valve, or issues with the fuel system could also contribute to rough idling. It may be helpful to perform a diagnostic scan for error codes to pinpoint the issue.