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Try some high temp red locktite on the insert threads. Tim Dapper > Date: Mon, 19 Jul 1999 00:11:41 EDT > From: Sonny8oy@aol.com > To: type3@vwtype3.org > Subject: [T3] pop-out > > driving along today around town, all of a sudden the car goes pop, and sounds > loud and rough. > turns out it blew #4 spark plug out of the head. this is a plug that had a > threaded insert on it. i managed to put a new plug in with a new threaded > insert on it (last two threads were serrated to help keep it in there; old > one was plain). i'm obviously not very confident that this will last very > long (it lasted a 35 mile low rpm drive home), so what should i do, without > taking the heads off, or anything fancy like that? should i replace the > threaded insert with a helicoil? would the head then need tapped? > thanks > > sonny ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org