Question about Mazda Cars & Trucks
Which model car are you referring to please?
Does the engine have separate coils for each plug, or does it have individual HT leads to the plugs?
If traditional HT leads affix to the plugs, then pull them off the plugs by the base of the HT lead, being careful not to brake them.
Then you will need to use a specific spark plug socket (one of two sizes on most Mazdas. The smaller size on most vehicles within the past ten years) and using a ratchet or T-bar and extension, carefully loosen and remove the plugs. Be careful not to strip the plug's location threads when fitting the new plugs. Plugs should always be turned in by hand as far as they will go before applying any further pressure with a lever, just in case they are cross-threaded when they go in.
Personally I would tend to use a very thin smear of Copper-Slip or break grease when re-assembling as this can prevent the steel alloy plug and any alluminium head from fusing together and causing difficult removal again in the future. Also a very, very brief spray with WD-40 into the ends of the HT leads when refitting, will allow them to usually slip onto the plug top and click into place very easily without the need then to guess if they have located properly.
Posted on Nov 01, 2012
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Posted on Jan 02, 2017
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