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Old Feb 4, 2006 | 01:53 PM
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From: Oakville ON "Real Corvettes have folding tops..."
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Off topic but help will apply to my 99 C5 with 25 k miles as well.

My daughter's car is a 1998 Z24 with the 2.4 liter DOHC 4. It has 140 k, km (85 k miles) on it and I haven't changed plugs since it was new. Any advice before I put the wrench on the old plugs? Should I buy anything other than AC plugs?
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Old Feb 4, 2006 | 02:00 PM
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make sure the cylinder head is cold.with 85k on the car there is a good chance the threads may be carboned up causing the plugs to get stuck[tighten up]as you are taking them out.if this happens DO NOT try to keep removing them,you can strip the plug holes or break the plug in the head[neither are good].if it stops turning,screw it back in,then back it back out until it stops again,then screw it back in,etc,etc,until it comes out.on the new plugs,use a little anti-seize on the threads to keep the plugs from seizing in the head.this also applies to the vette.
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Old Feb 4, 2006 | 02:10 PM
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From: Oakville ON "Real Corvettes have folding tops..."
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Originally Posted by dpd
make sure the cylinder head is cold.with 85k on the car there is a good chance the threads may be carboned up causing the plugs to get stuck[tighten up]as you are taking them out.if this happens DO NOT try to keep removing them,you can strip the plug holes or break the plug in the head[neither are good].if it stops turning,screw it back in,then back it back out until it stops again,then screw it back in,etc,etc,until it comes out.on the new plugs,use a little anti-seize on the threads to keep the plugs from seizing in the head.this also applies to the vette.
Thanks, that makes total sense and is a reminder of good practice. Any anti-seize or should I chose a special product?
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Old Feb 4, 2006 | 02:11 PM
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any anti seize is cool,just don't use a lot.
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Old Feb 4, 2006 | 02:31 PM
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Thanks again. Think AC plugs as good as any for both cars?
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Old Feb 4, 2006 | 02:43 PM
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yea,especially for the cavilier.for the vette use the ngk's or the delco's[they are the same]!
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