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Old 07-26-2014, 04:19 AM   #1 (permalink)
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Heatsheilding

Has anyone purchased and or used the fiberglass tube sock looking thing to heat shield their spark plugs...Similar material used on performance exhaust wrap.

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Old 07-26-2014, 09:50 AM   #2 (permalink)
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I wouldn't do it. Spark plugs and coils generate their own heat, so you would actually be preventing them from cooling down.
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Old 07-26-2014, 12:36 PM   #3 (permalink)
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Just saw a 1966 Mustang restoration yesterday tastefully done with headers. The spark plug location in relation to the header tubing was such that the owner had experienced more than one melted plug wire. Out of frustration, the owner purchased some of the woven heat tubing about 1 inch in diameter and cut it into 8 inch lengths. These ran from the plugs at the head to a distance which covered the critical heat zone around the header tubing. In several places, the heat resistant tubing showed some darkening but the plug wire inside was well protected and still in great shape.

While not a perfect restoration, the heat tubing sure helped to make it a weekend driver without fear of loosing a wire. The application was very eye-catching. It was also a reminder of how much room used to exist under the hood of a car where one could actually do some work and not end up with fresh scar tissue.
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Old 07-26-2014, 01:03 PM   #4 (permalink)
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It keeps the exhaust manifold from burning the wire or wire boot. If you need them you need them. Replacing spark plug wires every few months isn't very economical.
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Old 07-26-2014, 02:44 PM   #5 (permalink)
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Quote:
Originally Posted by TexasCotton View Post
Has anyone purchased and or used the fiberglass tube sock looking thing to heat shield their spark plugs...Similar material used on performance exhaust wrap.
Maybe I misunderstood your question. Are you shielding the plug wires or the coil or the spark plugs? Whats the specific application?

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