pepsx12 Posted May 7, 2009 Report Share Posted May 7, 2009 ok so i was installing my water pump and in the process one of the long bolts broke and now im screwed and have a piece of bolt in my block, if this ever happened to anyone could you please help thanks:cursing: Quote Link to comment
datzenmike Posted May 7, 2009 Report Share Posted May 7, 2009 If you remove the timing cover do you think there might be a nub sticking out of the block? Quote Link to comment
motavated Posted May 7, 2009 Report Share Posted May 7, 2009 (edited) I got a block with a fucked up one. There is more than enough room to do a helicoil... You have to take to cover off... I used one of these... Edited May 7, 2009 by Motavated Quote Link to comment
ggzilla Posted May 7, 2009 Report Share Posted May 7, 2009 (edited) Yes, I've dealt with this many times. 1. If you can get vice grips on it (use a quality pair like genuine Vice-Grips brand), clamp it tight enough and usually the bolt will unscrew. 2. If you can't get vice-grips on it, sometimes with a hacksaw you can cut a small slot in it, and use a flat screwdrive to unscrew it. 3. Or slowly, slowly tap it counterclockwise with a a center punch to unscrew it. Takes forever patience but often works. But if the bolts is broken down in the part, those methods don't work. These will: 4. Easiest way: You can drill a small hole right into the bolt stub and use an "easy out" to remove it. Sears sells these as do the auto parts stores. 5. Sometimes even though the bolt is broke off in the part, you can still get the part off. My worst case was on a Chevy Luv (Isuzu engine) a head bolt broke on me. I was eventually able to wiggle the head enough to move it up 1/8 inch. I stuck a hacksaw between the head and block and cut the bolt off. After that the stub of bolt unscrewed with my fingers! Edited May 7, 2009 by ggzilla Quote Link to comment
sanitys Posted May 7, 2009 Report Share Posted May 7, 2009 I snapped off a crank cap bolt on a 350 before due to a torque wrench that was all buggered up. Easy out ended up snapping off trying to get it out :mad: ended up dropping the block off at a machine shop and they got it out somehow :blink: Quote Link to comment
pepsx12 Posted May 15, 2009 Author Report Share Posted May 15, 2009 thanks once again guys imma have to weld a piece to the extractor then wrench it out there wasnt enough stud to grab onto Quote Link to comment
fisch Posted May 15, 2009 Report Share Posted May 15, 2009 I used an easy out for the first time a few weeks ago on a couple bolts. It worked great! Quote Link to comment
Gary Posted May 15, 2009 Report Share Posted May 15, 2009 if you resort to easy-outs, be careful cos they can break. ive had two break on me which only made the problem worse :( helps if you drill the pilot hole bang on dead center so be patient and get that hole right the first time. hard though i know, usually not a lot of room to whack a drill in there Quote Link to comment
650savag Posted May 16, 2009 Report Share Posted May 16, 2009 Here is some advice from a machinist. If it is broken flush with the surface of the block, try to locate the exact center of the broken bolt. Start with a small center punch and make a small indention. Measure again and be sure the mark is in the center. Now is the time to move the center punch mark in the direction that it needs to go to get it in center. Once you are sure it is centered, you can use a larger center punch and then use a starter drill or "center drilll" to get a good starter hole or pilot hole with a starter chamfer. Try to get a set of left handed drill bits and use the drill bit that is just under the "tap drill" size for the bolt. Use a left handed drill bit with your drill motor in "reverse" and if you are lucky, and the bolt is not "bottomed out", the bit may grab and back the bolt out before the drill goes all the way through. If it doesn't you now have a hole to try the largest size eze-out that will work in the hole. Be careful with the eze out because if you break one of these hard things off in there, then you will never drill it out. The only way to get an eze-out is with a carbide drill bit or arc gouger. Try to put some heat on the broken bolt after you get your pilot hole (as much heat as the block will stand without damage. Last but not leaste before you resort to the heli-coil, try to drill the pilot hole out to the "tap drill" size (measure with dial calipers the inside of one of the tappped holes to see what size the tap drill was). Once the hole is drill out to tap drill size, then all that should be left of the broken bolt is just the threads, and they will peel out from top to bottom, if you can get hold of the top of the starting thread. Good luck! Dan Quote Link to comment
650savag Posted May 16, 2009 Report Share Posted May 16, 2009 I forgot to add, after you get the broken bolt out, be sure and run a taper tap and then a "bottom" tap in to clean up the threads. Blow out the shavings with compressed air and "never-sieze" your bolts before installing your pump. Dan Quote Link to comment
hang_510 Posted May 18, 2009 Report Share Posted May 18, 2009 Yes, I've dealt with this many times. :lol: NASA needs your assistance... "Spacewalkers' specially designed tools couldn't dislodge a balky bolt interfering with repairs Sunday at the Hubble Space Telescope." http://www.washingtonpost.com/wp-dyn/content/story/2009/05/18/ST2009051800816.html Quote Link to comment
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