like an idiot, I overtightened the bolt that secures the tensioner assembly (timing belt) while changing the water pump. Obviously I'm going to need a screw extraction kit, some drill bits, and my B & D. I can't help but wonder if I'm going to break the damned extractor in the attempt. I soaked the thing several times w/PB. I guess I can resort to drilling it all out and tapping a new hole. So...anyone familiar w/this type of job? Your comments and suggestions would be greatly appreciated.
broken idler pulley/tensioner bolt - '90 Lebaron
Aug 09, 2007
2 Replies
If you overtightened the bolt you stand a good chance of getting it out. If there's a stub protruding try just gripping it with pliers; once the head snapped off it should have relieved most of the tension causing it to be hard to turn. If that doesn't work, take a small piece of hardened steel shaft, grind a point in the end of it, and try to "walk" the stub out with a hammer (get it to rotate counterclockwise until you have enough sticking out to grip)
If neither of those ideas work, THEN break out the drill bits. A good, sharp drill bit is your friend here, as is lots of oil and a friend to drizzle it on the bit to keep it cool.
good luck,
nate
Speaking of drill bits, buy some left-handed drill bits made especially for drilling into submerged, broken off bolts/studs. Sometimes as you are drilling they will simply turn right out. Good parts stores will have these.
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