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Old 02-28-2010, 02:04 AM   #4 (permalink)
Christ
Moderate your Moderation.
 
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The fix involves a $30 Heli-coil kit and about 20 mins of your time. You just tap the head with the included tool, thread a new thread insert in with silicon sealant on it, and then thread the spark plug into the sleeve and all's well again.

That's not necessarily what happened, though. It was just a suggestion. You'll have to check for yourself to see if the threads are damaged.

Frankly, it could have just been not tightened properly, and backed out from vibration.

If you're going to replace your engine w/ a G10, you have to replace the trans/axles, as well. The G13's transmission is mounted/designed slightly differently because of the engine length.
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