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Jeep Wrangler JK
JK General Discussion
Seized spark plugs
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<blockquote data-quote="Dirty Dog" data-source="post: 455022" data-attributes="member: 24042"><p>Make sure your engine is totally cold. Pull your plug wires. Spray in a ton of WD40. Let it soak. Maybe do that again. Other than that, there's not much in the way of tricks for removing your old plugs. </p><p></p><p>Buy plugs from a reputable manufacturer. I mostly use Bosch and NGK. Do NOT put anti-seize on your new plugs until you check the manufacturers recommendations. Modern plugs have rolled threads, not cut, and are plated, eliminating the need for anti-seize. </p><p></p><p>From the NGK web site:</p><p></p><p></p><p>Similarly, Bosch recommends against using anti-seize on their plugs. So does pretty much every major spark plug manufacturer. </p><p></p><p>I would, however, use plenty of dielectric grease on your new plug wires, especially if the Jeep sees any real off highway use. It improves the connection and prevents water entry.</p></blockquote><p></p>
[QUOTE="Dirty Dog, post: 455022, member: 24042"] Make sure your engine is totally cold. Pull your plug wires. Spray in a ton of WD40. Let it soak. Maybe do that again. Other than that, there's not much in the way of tricks for removing your old plugs. Buy plugs from a reputable manufacturer. I mostly use Bosch and NGK. Do NOT put anti-seize on your new plugs until you check the manufacturers recommendations. Modern plugs have rolled threads, not cut, and are plated, eliminating the need for anti-seize. From the NGK web site: Similarly, Bosch recommends against using anti-seize on their plugs. So does pretty much every major spark plug manufacturer. I would, however, use plenty of dielectric grease on your new plug wires, especially if the Jeep sees any real off highway use. It improves the connection and prevents water entry. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Seized spark plugs
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