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Easy Way To Avoid Accidentally Cross Threading When Installing A New Spark Plug
Joe Roberts, Malta, Ohio: “Here’s an easy way to avoid accidentally cross threading when installing a new spark plug. I tried this idea when I replaced the plugs on my 1990 Chevrolet S10 4-WD pickup equipped with a 4.3-liter gas engine.
   “Start with a 12-in. long gas line hose - the kind with embedded reinforcing string in the rubber to stiffen the hose. Make a cut in one end of the hose the same length as the porcelain on the plug. Then insert the plug into the hose and wrap a rubber band around it. I use the kind of blue rubber band used by grocery stores to secure farm-raised vegetables such as broccoli.
  “Insert the plug and hose into the hole and then rotate the hose until the plug is threaded all the way in. If the plug starts to cross thread, the hose will turn but the spark plug won’t so you won’t cause any major damage. Then back off and start over until the plug is threaded properly.”



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2017 - Volume #41, Issue #1