GUIDE : Changing spark plugs

JSeaman

SM Official Expert: Guide Author
SM Expert
May 26, 2009
216
0
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Derbyshire, UK
Step 1 - Follow the guide for removing the coil pack

Step 2 - Get yourself an extension bar and the thin type spark plug remover (There are only two common types of plugs used and one is fatter than the other)

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Step 3 - Loosten each plug completely and with draw them from the head

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Step 4 - The worst thing you can do is thread the plug putting it back in. To avoid this, finger tighten each plug as shown in the picture. If it gives you any resistance try wiggling the extension bar a little as you turn it but don't apply too much force

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Step 5 - Once all the plugs are finger tight, torque them up and put everything back together

Plug selection is something you need to decide depending on what you are going to do to the car. For most applications stock Platinums will be just fine. A cheaper option would be the NGK copper BCPR7ES. The most expensive option is the iridium plug which has got great properties for high performance engines but there have been a few horror stories with them.

My recommendation is NGK coppers - £15 for 6 delivered from ebay rather than £10 per plug for platinums. My car's never in one piece long enough to benefit from the long change periods of platinum plugs anyway!!