broken head bolt
03-16-2011, 08:50 PM
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broken head bolt
The other day taking my head apart for a head gasket job I broke one of the bead bolts. The bolt broke in way that I am not able to get a set of pliers around to grip it and pull it out. What is the best way for getting a bolt out that is flush with the surface, or a bolt that broke 1/4" into the threaded hole? Thanks fellas.
03-16-2011, 09:25 PM
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Which bolt is it? If you can take the head in to a machine shop or welding shop, they can weld a washer and nut to what remains, but it takes a skilled welder to do that without messing up the head, especially if it is down in the hole very far.
http://www.youtube.com/watch?v=6T0qegbNlnY
http://www.youtube.com/watch?v=6T0qegbNlnY
03-18-2011, 01:25 AM
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The bolt is broken flush with the surface of the block. I tried tapping it with a punch in the middle of the bolt, drilled out the length of the bolt, and put a bolt extractor (left handed thread) to try and twist it out. The extractor was just tearing the bolt like the drill bit was, crescent was just making the hole wider. I will just get a new (smaller diameter) bolt and thread the broken bolt/block
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03-18-2011, 01:34 AM
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But. I did run into another problem while tensioning the t belt. While tightening the cam tensioner pulley, the belt was tensioned at about 15lbs. So I tighten the Pulley bolt and a 2-3 turns of the wrench the nut started spinning very easily, and stopped tightening the t-belt. The stud does not move with the nut. Can I put another 17mm bolt on there to tighten the belt, and hopefully move the stripped nut far enough to catch again. But, I will need to get this nut off the stud at some point. Try and saw it off?
03-18-2011, 10:37 AM
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E-Z-outs rarely work in my experience. What does this bolt do? I'd fix it right or you'll regret it later. Same for the tensioner, that is a very risky thing to try to half-***.
03-18-2011, 12:16 PM
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The broken bolt is one of the front bolts that hold the head on- it's the front left one near the coolant temp. Sensor.
The nut that I stripped tensions the timing belt and just spins on the stud and doesn't tighten the timing belt and results in a loose timing belt.
The nut that I stripped tensions the timing belt and just spins on the stud and doesn't tighten the timing belt and results in a loose timing belt.
